I've owned 7 of these incredible little machines and one man's opinion the 4.0 is one of the best engines ever built! If properly maintained they will easily go 300,000 miles. However, several things you should do as SOON as you get it home, replace; crank position sensor, cam position sensor, MAP sensor, and strap down all three of the PCM plugs. Do this and you're usually good to go for thousands of miles.
Hey guys...I love my 98 Cherokee Laredo so much. Maintaining best I can. Already replaced CPU. My current problem is a rough idle and die out. Code said P0320 (crank/cam sensors) which I replaced. Same problems exists. And thoughts where to loom now?
I didn't Ryan. I'm suspecting an air leak now? But who fucking knows. I'm gonna find out soon though and I'll update (I've been riding my Onyx RCR for a year
my 1998 jeep grand Cherokee laredo over 200,000 miles has being doing absolutely all that you said in your extremely helpful video...especially of late and i tried all you said to do with computer connection and YES a little wiggle and it shut it off! THANK YOU FRIEND!
Hey no problem at all I'm really glad this helped out of what your problem is . This vehicle needed a new computer and it would have been fixed but the owner decided not to and sold it and bought a ford instead but had more problems with that . Thanks for watching glad could help out .🛠
@@KnuckleHeadGarage27 if i get the contacts clean on both module and connector harness with best spray for best results and find away to get to fit tighter...WILL IT SOLVE ISSUES...I HAVE?
@@darrylrichey9517 mmm I doubt that I tryed everything I could on this jeep and nothing would work and if it did it would be like maybe a week or something and then I be back where I was and it would happen in the pouring rain and I have to get out and wiggle the connection and get it to start back again . Most pain in the ass I ever dealt with I hated that jeep but it was my ex jeep so that's why there alot videos on it too basically was used in the relationship I worked on it alot trying to fix the problems it had and the biggest was the computer and her parents didn't believe me of buying a new computer to fix it and they ended up selling it and buying a ford with more problems and needed a transmission ha witch cost more buying another vehicle plus a new trans . Anyways long story short her dad had the same exact jeep and his started doing the same damn thing and so did her grandparents jeep to . So these are so bad for the computers and transmissions and rear ends
i have pipe insulation wedged and yes i have sprayed it with crc... cleaner...on way to work in the morning and when i come home well i will see...T!Y! FRIEND! yes rear had roar and trannie sluggish in shifting out many fluids leaks all over THIS jeeperz creeperz!
Remove the throttle body (TBI) and disassemble and change 4 orings that go on the shaft, they dry out and let air in, the idle speed is high and also oscillating! I took a tip from a friend and it solved my problem. If you move the shaft up and down with your hand you will see that the idle speed changes. Greetings from Brazil.
Ended up being a bad computer causing all the issues very very extremely common for these Jeeps the connectors have an issue if you wiggle them the Jeep would cut off and the customer that had this Jeep had two other ones like it and they both did the same exact problem
Swapped out PCM from junkyard. Serial number was off 1 letter but I got it anyway. Hooked up other PCM on my broken down jeep on side of road. And it fired right up. All the ignition switch codes were cleared out too. If it has been taken apart before and opened to be resoldered. Just replace it. You can only dry out and "patch-up" a part a couple times till you have a breakdown. If you put a bunch of dielectric grease in the connectors and it runs better than you may get away with it for a little while but that Power Train module will completely die soon. This video helped me thanks.
This video saved a car my mom's car was about to go to the junkyard and I sent her this video and we got it fixed as it was on the tow truck so we got it back
Just wanted to update, replaced the computer and learned something new about these things. 91 to 98 has a relay box behind the battery. Theres a relay that is labeled asd in there. That controls power to ignition, spark plugs, injectors, and fuel pump. When that goes bad itll cause the jeep to stall while driving and after a few minutes itll recrank and may run may keep stalling. But issues resolved shes been running like a top
Yeah on this jeep it ended up being a bad ecm computer. And the customer even had family that had 2 more jeeps and theirs did the exact same things literally the same problems. Connections at the computer ok the fire wall is what causes it
@@Steelcity77 don't remember the cost of the computer but it was from O'reilly's and after that it was fixed . The computer is very easy to change if it's like the one in the video
I've got one exact same year make and model, and I already replaced map because it was stalling and backfiring, but for about 4 months it never had a ck en lght, but when it finally did, autozone said I needed map sensor, so I got it and after we put it on, it ran worse, and it still had ck en again, so this time we took it to the OReillys and they told me it's a mis, and they sold me a ignition coil, which didn't really help either. I bought it in December and it's been gradually getting worse, and a few months ago I kept Googling what it could be, and I came across your video, and the I'd give it a and it actually ran for about a week but it still keeps dying on me, and the only way it'll run is when I mess with it, so my question is, does this mean I need to get a new computer?
Yeah I would say if it has same issues this one did and it would act up if you mess with the computer on the fire wall then more than likely it's the same problem . Very common on these jeeps , this jeep was my ex's and her parents had one same color same year but 4×4 with 4.0 and it did the exact same thing and backfired and blew the muffler apart and then her grandparents got one and it did it too After seeing that and many others with same issues I'll never own one lol and I'm not sure if it happens on the v8 jeeps or not but I know it does on the 4.0's
@CDSAutomotiveGarage thanks for the response, and it sucks because it's my only car and was supposed to be my daily, and I love jeeps, wranglers more than cherokee, and of course I'm on limited income so I can't just go get something different yet. I need to get it running and I guess try to get rid of it,as much as I like the way they look. I found some refurbished ones on ebay for like 130, so I guess I just need to do it asap.
I've got a 1996 GCL and it started doing the same thing but on the wiring harness for the TPS and throttle body. Whenever I move the harness around it does the same things you've described. Can't find the harness anywhere so I guess we're rewiring everything that goes to the throttle body sensors. I will try what you did and we'll see! Thanks and GODSPEED!
My 98 ZJ 4.0 starts dying when the engine gets up to temp. Wiggling the connectors on the PCM will kill it too but only after the engine bay is hot, I wonder if heat expands the connector pins just enough for there to be a loose connection? Could I possibly bend the connector pins a little bit so they make contact with the pins better? Or do I just need a new PCM. Thanks 🙏🙏
I would assume just the circuit board inside is cracked in places or solder joints or just something inside and after the vehicle is running for a certen time its vibrating and causing it to act up as it is trying to warm up . These are very very notorious for this problem I have fixed so so many with this problem after this jeep the 4.0s or v8s both do it
Having this same problem “again”. Had this problem a couple years ago and replaced the PCM and it worked for a while. Then It would start to cut off again a year or so later so i changed CPS with OEM part and it was good for a while. About 1-2 years later , where I am now, its starting to do it again. I cant wrap my head around it being the PCM or CPS again. But Ive heard something about the factory radio. Because the truck just shuts off, no sputtering or spitting. Just up and turns off. Feels like a grounding or some Kind of electrical issue. Any suggestions? Maybe the coil? Thats of the only things i havent replaced.
Could be the coil or anything. Really is hard to diagnose without being around it to see in person . Cpuld be needing a tune up or crank sensor. Really not clue and yes the radios ive seen that cause problems. I would go buy a after market one and that way u know that's done plus it be better than stock ones they don't pickup good signal stations. Also seen the radios cause the battery to die over night .
@@KnuckleHeadGarage27 Having the same issues as well. Sputtering, stalling, back firing to a point where it DID blow out my muffler. Looks like an open clam LOL. Coil was first to be replaced, then the cap and rotor. The PCM plug closes to the fender was my issue of being loose. I had ordered a re manufactured PCM to have on hand. Replaced that today as well as new plugs. Seems to run ok so far. Still has a flutter in the tac. The crank sensor is next on the list for sure then the three throttle body sensors TPS,IAC and MAP.
@@tinmansolo5855 yeah that's such a bad common issue on these jeeps and transmissions as well . This vehicle started to have transmission problems so they just ended up selling it instead of fixing the ecu butt yeah I see it so many times
@@tinmansolo5855 it was my ex gf jeep she had . Her dads was same year and everything as hers but his was 4×4 and it ended up doing the same exact thing as hers and also her grandpa's jeep same year and everything and ended up later on doing the same exact problems
Check the wire harness coming from the computer where it wraps around the back of the valve cover. There is engine stud on cycled 6 that sticks up and the wiring harness rests on it and it eventually wears through and creates a short. I just fixed mine with some liquid electrical tape, redid the plastic protector and placed a bung over the stud. Check this area before replacing sensors. I had the same symptoms described in the video.
I’ve got a 01 XJ 4.0 with a misfire I can’t figure out with also I ton of electrical issues, I.e. passenger door/window, rear hatch (wiper and ajar switch). Anyways do you think this would also apply to my jeep?
If it were me I would start at tracking down which cylinder is misfireing first and then whatever cylinder it is then see why . Could be anything at this point but that's where I would start first
I have a 97 my obd2 does not have power can’t read the codes I have to do the ol 3 key turns and read the o2 code , I wish I could use my scanner, have you seen this ? Love the video keep up the great work and wisdom God bless you.
@@jamesdodson9417 that's odd you can't use the scanner to get the codes , sounds like lost communication with the computer or something along those lines . I've had that happen before but on a OBD1 vehicle , couldn't read codes but had the light on and ended up being a bad ECM on it
98 Laredo same issues, runs well for a bit then I have to keep the engine lit to keep it running .at intersections so have you., usually about 2 k RPM.. am I causing more damage down the road?
Yes I had the same issues. Was the PCM fallowed this vid th-cam.com/video/uY62r-rtvls/w-d-xo.html it fixed my problem. After a lot of parts and money troubleshooting. Pretty simple and easy
Question Did you have any codes, I had the same problem and also thought it was the computer, I replaced the crank position sensor just make sure it’s OEM and fixed the problem
No I never really had codes or anything . The only thing that did was ignition coil. And I replaced it twice because of problems but main problem was the computer it was all related to that . U could literally wiggle the connectors to it while was running and the jeep with cut up or just cut off stall out and this went on fir months like this until the customer decided to sell instead of buying another computer for it cause vehicle had other issues too . Already had other things done to it . New water pump , new temp sensor , ignition coil , plugs , wires , cap and rotor , serpentine belt , tires , alternator , radiator , cherry bomb muffler because the stock one blew a hole in it from the vehicle backfiring , plus few other things so they just sold it instead. Has transmission problems tho was slipping in first - 2nd gear sometimes would shudder really bad and the lifters or rocker arms would rattle so bad as heard in video. I Believe they got 500 out of it
I have a 96 Grand Cherokee doing th same thing. I swap computer, installed new distributor with cam sensor, cap and rotor. Replaced spark plugs and replaced ASD relay. Check stalls then won't start. Constantly cranks. Left it parked a few hours. Came back it started. Could this be the fuel pump or ignition coil?
Yes that it could , or the crankshaft sensor . But the fuel pump I would get a tester an see what the readings are for pressure an if it is losing fuel or how much actual fuel pressure your getting when u turn the key to prime it . Ignition coil could be getting to hot or have crackes in it an causing the problem too
I have a 1998 Jeep Cherokee lardo and its shut off and backfiring and all the time but it does it a lot and I have three grandchildren that I use the jeep for to take them back and forth to the doctors and I can't figure it out why it is doing it. Please help me..... Do you think if I put some sea foam in it that would help? Thank you in advance yours truly a grandmother the needs help......
Sounds like you have a problem with the computer if you open the hood with engine running go over to the firewall where the computer is and wiggle the connectors that go to it if it cuts off or does anything weird Beyond normal then that's your problem. Because that was the problem with this vehicle I had problems with the computer and the wiring to it the connectors if you look up online there's a whole thing about the Jeep Cherokees cutting off and backfiring and having problems and It All Leads back to the computer because they're screws put into the computer from Factory and they are too long and hit and ground out the circuit board inside and fry it and that's what messes them up . I've seen it alot really have very notorious for problems these jeeps
@@barbaraknight1660 no problem at all I just really hope that helps and fixes your problem. Some people may not have the same issue but I've have seen this so many times on these Jeep Cherokees that has got to be the problem cuz that's what it sounds like
Hi I watch your video on 97 Grand cherokee...I own on that will not start..I replaced fuel pump,start sensor , rotor & cap still will not start ....help!
I really need help. My Jeep keep turning off. I already change fuel pump vap canister inyectors spark plugs clean fuel line clean throttle body new iac valve new tps. I don’t know what else to do 😞 I got a 1997 Jeep Wrangler 2.5 4 cil
Thanks for this video it really helps a lot because my Jeep just started doing this lately and I couldn’t figure out why I bought a new battery and the alternator is still good but now I know to check for that. If I have any questions would you mind me asking?
Ok my mom has a 98 jeep grand Cherokee V6 4.0 and after she drives it for awhile it will just die on here going down the road or at a stop light or stop sign so do you think that it would be the computer connection then
Hey so I recently blew my head gasket the car wouldn't start at all and then I put the blue devil liquid in it and now it start and idles but as soon as it goes to drive or reverse it dies would that be the same issue the computer connection or should I drop the gas tank and check the filter?
I hope you get this. I have a 97 jeep grand Cherokee laredo, 4.0 inline six with right 180k on it. Started as a minor stalling issue, then it would die at 55mph going down the road. Would always restart as soon as I turned the key. So I have replaced, cps, ignition coil, all new distributor, plugs and wires, throttle position sensor. Nothings improved it. It's gotten to the point when it stalls it will crank and crank and if it restarts it shudders and dies. May do it 2 times may do it 50 but eventually you can get it to restart and may not have an issue for the next couple hours. Ordered a computer of flagship1 got to today so hopefully my issue will be resolved
Sounds like it’s in security mode try putting the key in and cycling the lock 5 or 6 times all the way around hatch as well when you manually lock and unlock you ground out the security system you can go to the forums and find a lot more information about this a lot of ppl permanently ground the security system because they are rather fidgety and cause slot of problems
Do you have Lifters that are ticking just make sure the oil is clean and full and honestly depends on how loud but I'd say it be okay but it depends . Of ots like the jeep in the video then it's fine
I had hard starting problems with my 2001 cherokee , i notice the positive wire on the battery was pulling out of the battery connector not allowing a good connection. Strange but simple problem that i just over looked for months but i fixed it and it seems to run fine now.
I had the same thing happen on my 97 and also it's just now starting to act up with dead batteries after sitting at night and the airbag light comes on , the rear defrost light stays on and heater blower after key is clear out of ignition, there's a shorting out or crunchy noise from around the glovebox or firewall, a new rattling noise sounds to be coming from under center console during rough idle or when shutting down the engine or on startup I still can't find , plus now a loud thumping or popping noise in front end when turning left or hitting bumps that's gotten worse over last week, I was actually thinking 🤔 should I sell this thing? But I like the Jeep when all is well and I hear so much good about the engines , mines a 97 with about 155,000 miles , any help besides the major help of this video already I do appreciate, thanks all
I have a 95 jeep GC and I don't have the same pcm as In. The video I did the wiggle test and nothing. My auto shutdown relay keeps turning on and off tho. But all the symptoms leads to this. Oh and my pcm has alot of rubber plastic can't get to the chip where the soldering needs to be done.. Any suggestions..
I have a 1993 jeep grand Cherokee Laredo V8. As long as I keep my foot on the gas it will stay running. Soon as I take my foot off the gas it turns off. Any idea what the problem could be? My search on youtube has lead me to believe it is my PCM. Would hate to replace that and the problem could be something simple or something else.
Could also be the Idle Air Control Valve/sensor. Google that, there are some resources on how to clean it, or you can replace for about $50. Easy part to get to.
I would recommend taking out the idle air control valve and cleaning it and cleaning the whole throttle body and maybe even replacing throttle position sensor but before I would spend anything I take the whole throttle body off and clean it really good and clean the idle air control valve and then put everything back together and see what happens then
A little late to this comment in regards to the 1993 jeep grand Cherokee v8 motor shutting off the moment you take your foot off the gas. Which was exact same case with my dad's jeep same year and model so just wanted to share my experience with other people having this issue to do what others here have suggested and that is to remove throttle body and replace gasket if you are removing it for cleaning and most important idle air control remove that from throttle body for cleaning as well
I'm having this exact issue right now. First time ever having this type of problem taking it to my buddy's shop I the am to see if he can help me out. Thanks for the info
Thanks is I've got a 95 jeep doing kind of the same thing as soon as you out it in gear sputters n want to stall sometimes backfires driving down the road. I'll give this a try . How much for a new computer or did you just solder it?
I told the customer how much it would be to fix it and everything and I decided to not do anything else to the Jeep cuz it already had like 200 and something thousand miles so they parked it and got something else the drive but the computers for these don't cost that much.
@@shawncharleyboy3702 yeah your welcome no problem at all. Very very common on these Jeeps and I believe it's a recall as well and it all leads to the computer
I have one mines it will crank but if i had to go to the store or something n shut it off it probably wont start back up till like a hour or 2 i just found out i can spray starter fluid inside n it will fire up but i kinda feel like it might be over heating cause why would it start back up a hour or 2 the motor Spain but i also was told it sound like it ain’t getting no gas but i just gotta new fuel pump
40+ pounds of oil pressure is great for a Jeep 4.0 if you want a little more put straight 30 or 40 weight in it. Although, I do hear some lifter slap in that engine .New lifters will up your pressure but it means removing that head.
Oh yes I know that engine is wore the hell out bad so and leaks oil too as well and trans slips anyway and I ran 10w40 in it and that helped but it wasn't my jeep was my ex's so and her parents didn't care and she cheated on me so I left but seemed like there was always something wrong with the jeep ha had the famous computer issues too kept cutting off and back Fireing and then that put a big ass hole in the muffler so I put a cherry bomb glass Pack on it and fixed that and hell didn't wanna start back either sometimes when it would cut off because of the computer they have a problem right at the connectors so that's why it acted up. and then had a battery drain issues too and needed tires and brakes and shocks lol so yeah and paint was shitty too and one fenders had a dent into it so that jeep seen better days anyway yeah and the hole time we were togeather she used me to repair that piece of shit and do things for her and 4 years found out she cheated on me and now she's marrying the loser she was cheating on me with so yeah . But I'll never own a jeep grand Cherokee with the 4.0
@@papablista627 no I actually didn't ha it was welded on and the jeep is at her house sitting in back yard but I haven't seen in while so I believe it's been junked and now she has a ford f150 haha which is even worse lol oh well I'll never own a jeep grand Cherokee I bring to you that
The jeep was never mine it was hers all along but I fixed anything that went wrong she mostly used me and but and sometimes she bought the parts ha hardly ever so but at least I made videos of it and helped people out and also got views so .
My jeep is causing me issues now. It started by me pushing on the gas pedal and losing gas so I parked it somewhere and tried to start it again, it will start but will die after seconds having it on. Even trying to reverse it or drive it, it wont let me. Some say might be a fuel pump problem but they are not sure of it. Not sure what it is. Any ideas? It won't move at all. And dies quickly.
Try messing with the computer on the fire wall on left side the connectors or wireing to it wiggle them around alot bit or push them in like to make sure they have a good connection and then go try to start it i bet after that it will start and run these jeeps are so so bad very notorious for computer issues
I have a 99 that does Same thing this ond did on the first start how it starts for litterly a sec then putters and dies and I have to either unhook batterie and hook right back up or if I change out a couple relays under hood it will fire right back up. Whats weird is it will do this were it will not run for more than sec and I can keep key just forwards then sometimes you here the dinger go off and of that happens I can turn key it fires right up runs great. I love my jeep but it's got so many electrical issues I just want it to run normal I wish I knew what for sure was wrong with it
Yeah this was actually the ECM that failed and the owner family had 2 other jeeps just like it with same colors and same setup and ended up doing the same shit months later . So it's very very common on these jeeps Try wiggling the computer wires connectors and see what it does then and it dies or something in sure it could be that
I've got a 97 GC 5.2 V8. Mine just quite working one day. But it had all these problems before it just up and quit working. It will crank but won't start. It will turn over and turn over and turn over but will not start. It's sooooo annoying. I've tinkered around with the PCM over there to no avail. Any input?
Mine is a 1998 Grand Cherokee limited 5.2l v8. It was the cam sensor in the distributor..... had long cranks and sometimes, crank but not start.... wait a few hours and start right up..... Jeep..... is todays heep
1997 jgc limited 4.0. Just changed the battery and now all it does is start and with in 10 seconds it dies. When we first got it we jumped it and it started and ran fine. But since winter is coming wanted to make sure it would start without a jump so that's why we changed the battery.
@@KnuckleHeadGarage27 how do I do this? Never had to workon my vehicles before because husband did it. He died in July this year so on my own with 3 kids so please keep it simple
@@TwistedpepperQueen honestly it's going to be hard to actually diagnose without looking at it personally and seeing in person what it's doing butt however sounds like it's cutting fuel to it or something for it just stall have u tryed putting your foot on the gas pedal to see if u can keep it running or does that not work either
@@TwistedpepperQueen these Jeeps are notorious for computer issues so bad the Jeep in this video had that issue the computer was actually bad that's what was causing the vehicle to cut off and cut up and backfire and go on . I read online somewhere about whenever they made the computers for the Jeeps the screws that hold the computer together or too long and they ground out the circuit board inside the computer which causes the issues of stalling backfiring not wanting to crank back that type of thing and sometimes you can take those screws out and put shorter ones in but then again you may have to replace the whole computer because of the circuit board been destroyed but honestly really hard to tell yours may be something simple but see if u can keep it running with your foot or something. When it cuts off does it struggle and then just cut off or does it just cut off like you turned it off yourself
I have jeep grand cherokee laredo 1997 and I have problem with the front break disk it's broken and I can't find new one in my country ( syria ) do you know any kind I can replace with it like I hope you help me in that
Not sure on that buddy . Best bet would be a junkyard or something like that or order off line and havw it sent to u over their butt . I honestly couldn't tell you cause if u can't even order or get parts then not sure .
I'm having similar issues. Same jeep and year. And running really rich. I basically have to treat it like a diesel engine. It even blows black exhaust if I gun it too hard. My first attempt to fix will be replacing the fuel pump assembly and purging the lines to ensure good flow
Hmm sounds like u have bad fuel injectors and it's dumping way too much gas into it or a bad fuel pressure regulator something else kinda hard to tell tho
@@KnuckleHeadGarage27 that's my thought, but with a bobbing fuel gauge I figured I'd start with replacing the fuel pump assembly first then go plugs n injectors.
@@lilreb720666 yeah if u have fuel gauge problems then it's the fuel sending unit that sends a signal to the gauge of how much gas is in the tank . Butt
The 4.0 litre straight 6 was an AMC motor that is sourced largely from the older 232 and 258ci straight 6 units 1987 was the first year the 4.0 litre i believe with 173 hp and 225 lb.ft torque which was quite powerful at the time had a 91 jeep Cherokee Briarwood with the wood paneling it was good it was always a bit hard to start though and couldn't really tow much overheated easily they were geared high for overlanding more than towing but nearly bulletproof as much as any straight 6 motors were and still are
I don't keep any they have cores charges when I have replaced these so I don't keep the old ones or any . Main reason is u can't just buy one from junkyard cause they wont work like that even if everything is the same the internals of that ecm are different an the program in them is different. But however I had a 96 dodge grand caravan 3.3 that needed a ecm an I found one at junkyard off a church van with the same exact everything I mean everything same date an manufacture date on the inside of the door sticker so with that being a ideal twin it actually worked an the van fired right up after that .
Hey, I have a 96 JGC Laredo and I changed the oil pressure switch yet when I crank it up, it stays up and turns off and the check gages light pops up. When I try to crank it up, it won’t crank back up. Anything I’m doing wrong?
CD'S Automotive Garage Like, when I crank it up, it’ll stay on but shuts right off and the “check gages” light shows up. I found out that it was the oil pressure gage that needs to be replaced and after I replaced it, it’s doing the same thing again.
*switch* I meant. I took it to AutoZone for a diagnostic and two codes popped up. The codes were P1398: Misfire Adaptive Numerator (PCM is unable to learn the crank sensors signal for use in preparation for misfire diagnostics) and P0351: Ignition Coil A Primary/Secondary Unit. So far, I have replaced the crank sensor and the starter. The ignition coil will be here next Tuesday and I was just see am I’m doing something wrong and trying to get the right part replaced instead of replace something else that doesn’t need to be replaced.
I live in Colombia, and I'm thinking of buying one. I found a couple the owners moded the engine to work on gas and gasoline at the same time. what do you think of this mod and do you advise me to get one in the first place or I will run in a lot of issues later. I really appreciate the help
Well these jeeps are notorious for the computers or wireing harnesses to the computers , the transmissions as well butt . I've seen alot of these with high miles and still going
I checked but . Tuned out to be the ecm computer for the jeep to run . Owners didn't wanna spend amymore cause trans was going so they junked it. Then bought a ford with trans problems and even more so yea stupid if ask me.
@@sleeperjeepsleeperjeep6006 yes u can get them but make sure they are pre-programmed or other words called flashed . Cause if not it won't run or anything unless it comes that way from parts store .
I have a 93 Jeep Cherokee keeps going dead on me. Sometimes it will crank right back up sometimes I will have to wait a few minutes or 5 minutes. I replace the coil and it started working right for a month and then started back the same problem.
I'm having a similar problem with a 96 model but it's not backfiring or running rough per se it just cranks up runs for a few minutes then stalls out if we wait 45 minutes to an hour it'll crank back up. Could it be the same problem you're talking about?
Try wiggling the connectors at the computer and see if the Jeep will cut up or cut off or whatever while it's running if it doesn't then that's not the problem
It's the computer it's self inside I read on a form about that the screws or too long and would Fri the circuit board inside or something like that so basically just replace the computer an it be fixed . But customer actually junked it instead of fixing it
so what if it isn't the computer connectors? someone told me once it could be the relay? or something along that line. it's under the hood. and is clay insulated. but its wired from the fuel system and goes to the fuel pump. when it gets hot or when not working correctly it tells the fuel pump to stop working and causes it to stall out like it does in your video. my 97 lorado. you would he driving down the road and would stall out. and spend the next 20 minutes or so trying to get it started again and nurse it back to the house.
@@KnuckleHeadGarage27 well I'll do the cheap repair with the relay first. and then go from there. but while I'm in the area I'll check the pcm and connectors
Never needed too that was never touched. The computer was the problem u could wiggle the connectors and literally the Jeep would cut off or cut up an this went on for months . It would drive and run fine for a while and then all of a sudden sometimes it would act up and just act up bad and it got very very irritating was a pain in the ass
Hey there I have a 95 inline 6 and it's cutting off after a few minutes in traffic, or at a stop sign. I've also heard of backing to screws out or replacing the screws with sheet metal screws. Have you heard of this? And what is this computer or the part called if it needs replacing? I'm not mechanically inclined so I apologize for sounding like an idiot
Yes I've heard about all of that . Basically what I would do is just replace the computer to be done with it . these jeeps are so bad notorious for the computers going out and causing the same issue that you have as in this video I've seen so many of these with same problem so much I wouldn't ever want to own one .
I have been dealing with similar issues. There are 2 or 3 fuses that deal with the radio. On occasion I have to remove and replace the fuses a couple of times to get power going to the radio.
i have a 96 grand jeep cherokee laredo 6cyl 4.0 i chane the fuel pump and regulator but im still having problem when i press the gas it fluctuates if i pess the gas to the foor it back fire plz help me with this situation.
Did you change the fuel filter as well too cause u should have . Also could be anything and it would be hard to really help you out without being there I don't want to say it's this or that and then you replace it or whatever an it not fix it . When did it start doing this let's start from there and what has been done to the car before this happened
@@KnuckleHeadGarage27it was last yr I drove it and when I went to start it. it wouldn't start so I change the tps ignition coil distribution cap crank position sensor.. and it was driving but it would not go fast itbwoukd jerk a bit while trying to go at a high speed..
I have a 98 grand Cherokee limited 4.0L and recently it has started to die on me when the motor gets up to operating temp. Gas pedal becomes unresponsive and it will die on me and doesn’t like to start back up. Sometimes it will even back fire. My mechanic said it might be shorting out due to water being sprayed from my bad water pump. I’ve already had the screw cut down 1/4 inch from computer to firewall. I need help!!!
Try to go to the computer and wiggle the connectors and see what the vehicle does if it's cold or hot when it's running it shouldn't matter and see if the vehicle acts up a cuts off if it does then you need another computer .
CD'S Automotive & Repair I started the car and left it running in the driveway, as soon as the car heated up it shut off and wouldn’t start right away. I’m convinced now maybe it has to do with my coolant system.
I just accedently deleted my whole rant to much , to many people , having to many of the same problem we shouldn't be paying for. So who do we need to contact to file a class action on Jeep .
The paint is what pisses me off the most. I fixed or am fixing the other problems on my 97. Called Chrysler and they said there's nothing they can do about the paint. Told the guy to shove it and hung up lol. I feel your pain dude.
lmao, I have the same grand Cherokee too. same color same issue. I have 214k miles though. My muffler exploded and blew off the car completely haha. I spent a year reading codes and changing out sensors and shit. Finally took it to jeep for a diagnostic. They said it was a short in the computer and none of the sensors I changed. Anywho so I bought a new ECM and put it in myself and never had a problem with the car again.
@@KnuckleHeadGarage27 Yep, I still got the jeep. This had happened a good 10yrs ago. Has been a very reliable vehicle. I knew a guy with the v8 version and it stayed in the show longer than it was on the rd.
The pulley on my 94 jeep Cherokee started squealing off an on, so I let it go. - Bad mistake! - The pulley froze up and ruined the belt, while driving one day. Had to have it towed and repaired at a garage. Anyway, no issues yet with motor backfiring or stalling. But, should it ever, I'll know what to check out first.
Umm no probably not . Things could be different like for emissions and such . It has to be exactly the same as for the manufacture date as well . Because ive ran into this before and will probably need to be flashed to the bagel your putting this computer in so it runs right for that car or you really Could do damage or something to it if not done correctly
It's the computer itself that is bad or was bad on this one . U can clean the connectors with a cleaner just for that butt make sure the battery is not locked up when u do use the spray cleaner . But basically the computer is bad and after replaced that the vehicle was good again . But customer gave up and sold the vehicle after this .
I have a 2001 grand Cherokee Laredo I replaced the ignition coil camshaft position sensor and I took it to a electrical problem I paid 200 dollars they said it should be fixed I looked at this video this is exactly what it does any suggestions
I would go to the left side to the fire wall and got to the computer and wiggle the connectors on the computer and if it cuts off and messes up it's pretty much a problem in computer is toast and sometimes it's just the connectors but most of the time these Jeeps have a famous notorious recall and issue with the computer on these and they all have the same problems and symptoms of cutting off backfiring doing all kinds of issues and problems but it all leads to the computer that will cause alot of headache and money
But basically if it cuts off or does anything when you mess with the connectors to the computer then that's your issue which I'm betting is is I would start there an see . 🛠
@@Torrez_71 well all depends who does it but I do this for a living and had and seen so many of these and they all seem to have the same problems but replacing the computer isn't that much get that through parts store say like local AutoZone this one for this year jeep was running around $150 to $220 for a computer but make sure it is new do not buy a remain computer because u more likely have the same problems again and make sure it's comes preflashed programmed to the jeep or it won't work either. 🛠
Bought a pcm off of eBay it starts and run fine but idles low or high sometimes. My JGC only has a 147000 on it and I only paid 250 bucks so Im ok with it lol
What if I'm not getting the fuel pump to work it's new and was working but now it wont ingage and prime when I turn the key on. This is on a 87 jeep Cherokee
@@pedronovales4931 yeah scrap yard should have that with no problem but you need to make sure it it's the same exact everything for the wiring it goes to the computer even though you're just cutting two connectors off of junk vehicle and then splicing them onto yours if that's what you're doing you need to absolutely make sure that everything is the same like same engine and trans and is if its 2wd or 4×4 and has to be close to the same year as well . Because the wiring may be different or different colors or have different options than yours didn't have or whatever just make sure everything is exactly the same and then whenever you do go to put these new connectors in and splice them in use shrink wrap butt connectors only . Nothing else but those . But if that what your doing and or planning to do
my 1997 grand cherokee had it three years never failed to start one time now wont start checked for spark nothing installeda new coil still no spark so replaced crank sensor still no spark what the heck could be wrong getting good fuel also
Could be a bad distributor I would check into that but more likely could be a computer problem these Jeep's are notorious for computer issues really bad and a bad computer will cause no spark or no fuel pump or a check engine light or nothing at all
I work on my folkes vehicles . my dad has a 1978 chevy truck 350 hei ignition . has no spark . I thing i traced it down to the ignition switch on top of the steering column. My mom has 2 jeeps - 1990 jeep cherokee 4 door Laredo 4.0 auto and a 1996 jeep Cherokee sport 2 door 4.0 auto. The 1996 is also doing the same thing as the jeep in this video 🙄. Last time it was a loose factory connection on the coil pick up and the ground connections that bolt to the passengerside engine block between the distributor and fire wall. Had to cut off the factory connectors and crimp on new ones and solder them to the wires.I will check the computer box connections . JEEP = Just Empty Every Pocket
Yeah they are money pits and alot issues with them . Which is ression I would never own one . Unless was the v8 option and if it was loaded with everything . But they all have trans problems and I've seen some rear end issues too.
I changed the computer on mine and it fixed that issue replaced the fuel pump and having a sending issue so replacing the assembly again and the injectors hopefully it’s on it’s way to recovery lol
My jeep has a rough idle and lacks power and feels like a slight miss, It feels like it's not getting enough gas, I replaced the map, TPS, and iac valve and plugs and wires, nothing's changed It's a 97 4.0 zj, maybe fuel injectors?
Yes If it's misfiring it could be the fuel injectors are bad or dirty . Also could have sticking valves . Need to figure out which cylinders is misfiring on it too . Vacuum leaks can cause problems too
Were you able to repair the problem with this jeep? I fixed mine by cleaning the connectors and pins with an electrical spray cleaner instead of replacing the computer.
SOOO this don't have anything to do with Fuel Pump????????????? When mine cuts off, you can't start again immediately. Have to wait about 5 minutes and then try.
@@KnuckleHeadGarage27 It was the connector on the computer on firewall. I put contact cleaner in and some grease and it runs like new now. It was a $13 fix.
No no no don't ever do that . You Could possibly do some damage to the vehicle if you do that . It has to be the same exact year like the same date that's on the sticker inside the door and same engine same transmission and it matters to if it's two wheel drive or four-wheel drive as well . But yeah that will not work don't do that I definitely do not advise that lol .
@@KnuckleHeadGarage27 thanks that's my luck tho got an 03 with blown engine but I have the source of my problem thanks to your video wow I have spent 7 years wrestling with this jeep bought new sensors plug wires because of the ticking sound how much I owe you lol
Yeah its a very common issues for these jeep grand Cherokees for computers problems . The customer of this vehicle actually sold it instead of replaceimg the computer or fixing it .
Hope you have a leak some where on the outside of the engine if not then it's a early headgasket going out . Need to check everything an see where it could be leaken the coolant
I've owned 7 of these incredible little machines and one man's opinion the 4.0 is one of the best engines ever built! If properly maintained they will easily go 300,000 miles. However, several things you should do as SOON as you get it home, replace; crank position sensor, cam position sensor, MAP sensor, and strap down all three of the PCM plugs. Do this and you're usually good to go for thousands of miles.
Yeah , they seem to eat them .
The omwer actually sold the jeep after this they didn't wanna put anymore $ into it an all it needed was a computer
Hey guys...I love my 98 Cherokee Laredo so much. Maintaining best I can. Already replaced CPU. My current problem is a rough idle and die out. Code said P0320 (crank/cam sensors) which I replaced. Same problems exists. And thoughts where to loom now?
@@B.Zee... did you find a solution for this??
I didn't Ryan. I'm suspecting an air leak now? But who fucking knows. I'm gonna find out soon though and I'll update (I've been riding my Onyx RCR for a year
@@B.Zee... I'll be working on mine all day today. If I fix it I'll be back on here.
my 1998 jeep grand Cherokee laredo over 200,000 miles has being doing absolutely all that you said in your extremely helpful video...especially of late and i tried all you said to do with computer connection and YES a little wiggle and it shut it off! THANK YOU FRIEND!
Hey no problem at all I'm really glad this helped out of what your problem is . This vehicle needed a new computer and it would have been fixed but the owner decided not to and sold it and bought a ford instead but had more problems with that . Thanks for watching glad could help out .🛠
@@KnuckleHeadGarage27 if i get the contacts clean on both module and connector harness with best spray for best results and find away to get to fit tighter...WILL IT SOLVE ISSUES...I HAVE?
@@darrylrichey9517 mmm I doubt that I tryed everything I could on this jeep and nothing would work and if it did it would be like maybe a week or something and then I be back where I was and it would happen in the pouring rain and I have to get out and wiggle the connection and get it to start back again . Most pain in the ass I ever dealt with I hated that jeep but it was my ex jeep so that's why there alot videos on it too basically was used in the relationship I worked on it alot trying to fix the problems it had and the biggest was the computer and her parents didn't believe me of buying a new computer to fix it and they ended up selling it and buying a ford with more problems and needed a transmission ha witch cost more buying another vehicle plus a new trans . Anyways long story short her dad had the same exact jeep and his started doing the same damn thing and so did her grandparents jeep to . So these are so bad for the computers and transmissions and rear ends
i have pipe insulation wedged and yes i have sprayed it with crc...
cleaner...on way to work in the morning and when i come home well i will see...T!Y! FRIEND! yes rear had roar and trannie sluggish in shifting out many fluids leaks all over THIS jeeperz creeperz!
Remove the throttle body (TBI) and disassemble and change 4 orings that go on the shaft, they dry out and let air in, the idle speed is high and also oscillating! I took a tip from a friend and it solved my problem. If you move the shaft up and down with your hand you will see that the idle speed changes. Greetings from Brazil.
Ended up being a bad computer causing all the issues very very extremely common for these Jeeps the connectors have an issue if you wiggle them the Jeep would cut off and the customer that had this Jeep had two other ones like it and they both did the same exact problem
Definitely the PCM… that’s my problem right now I can’t find a good place to buy one..
Swapped out PCM from junkyard. Serial number was off 1 letter but I got it anyway. Hooked up other PCM on my broken down jeep on side of road. And it fired right up. All the ignition switch codes were cleared out too. If it has been taken apart before and opened to be resoldered. Just replace it. You can only dry out and "patch-up" a part a couple times till you have a breakdown.
If you put a bunch of dielectric grease in the connectors and it runs better than you may get away with it for a little while but that Power Train module will completely die soon.
This video helped me thanks.
Your welcome so glad that it did and thanks for watching 🛠
This video saved a car my mom's car was about to go to the junkyard and I sent her this video and we got it fixed as it was on the tow truck so we got it back
Damn . buddy I'm glad to have helped out
Just wanted to update, replaced the computer and learned something new about these things. 91 to 98 has a relay box behind the battery. Theres a relay that is labeled asd in there. That controls power to ignition, spark plugs, injectors, and fuel pump. When that goes bad itll cause the jeep to stall while driving and after a few minutes itll recrank and may run may keep stalling. But issues resolved shes been running like a top
Awesome glad it's fixed!! These are so common for these issues
mine is spitting flames like everytime I rev it or go over 65 what do I do?
@@meltzfn784 You sir are running way to rich in fuel
I changed my computer no problems with stalling got to look into what you said thanks for the share
This is so helpful, I just baught one yesterday and it wont start today.
Yeah with these Jeeps Cherokees it is very common I see it all the time. Worked on many of them with the same problems
lol “4.0 inline 6 V6”
👌
With super conductors lol
Can we buy this part at an auto part store??
I have a 97 grand Cherokee with 214,000 and its doin the same exact thing yours is doin. I hope this video helps, I'm at my witts end.
Yeah on this jeep it ended up being a bad ecm computer. And the customer even had family that had 2 more jeeps and theirs did the exact same things literally the same problems.
Connections at the computer ok the fire wall is what causes it
@@KnuckleHeadGarage27 Is it a costly repair?
@@Steelcity77 don't remember the cost of the computer but it was from O'reilly's and after that it was fixed . The computer is very easy to change if it's like the one in the video
Thanks my 1998 Jeep is doing the Same thing.
Your welcome no problem at all glad could help out 🛠 . Thanks for watching
I've got one exact same year make and model, and I already replaced map because it was stalling and backfiring, but for about 4 months it never had a ck en lght, but when it finally did, autozone said I needed map sensor, so I got it and after we put it on, it ran worse, and it still had ck en again, so this time we took it to the OReillys and they told me it's a mis, and they sold me a ignition coil, which didn't really help either. I bought it in December and it's been gradually getting worse, and a few months ago I kept Googling what it could be, and I came across your video, and the I'd give it a and it actually ran for about a week but it still keeps dying on me, and the only way it'll run is when I mess with it, so my question is, does this mean I need to get a new computer?
Yeah I would say if it has same issues this one did and it would act up if you mess with the computer on the fire wall then more than likely it's the same problem . Very common on these jeeps , this jeep was my ex's and her parents had one same color same year but 4×4 with 4.0 and it did the exact same thing and backfired and blew the muffler apart and then her grandparents got one and it did it too
After seeing that and many others with same issues I'll never own one lol and I'm not sure if it happens on the v8 jeeps or not but I know it does on the 4.0's
@CDSAutomotiveGarage thanks for the response, and it sucks because it's my only car and was supposed to be my daily, and I love jeeps, wranglers more than cherokee, and of course I'm on limited income so I can't just go get something different yet. I need to get it running and I guess try to get rid of it,as much as I like the way they look. I found some refurbished ones on ebay for like 130, so I guess I just need to do it asap.
I've got a 1996 GCL and it started doing the same thing but on the wiring harness for the TPS and throttle body. Whenever I move the harness around it does the same things you've described. Can't find the harness anywhere so I guess we're rewiring everything that goes to the throttle body sensors. I will try what you did and we'll see! Thanks and GODSPEED!
Could try a junkyard to get them . I know I can still get new connector ends from part store not to cheap tho
My 98 ZJ 4.0 starts dying when the engine gets up to temp. Wiggling the connectors on the PCM will kill it too but only after the engine bay is hot, I wonder if heat expands the connector pins just enough for there to be a loose connection? Could I possibly bend the connector pins a little bit so they make contact with the pins better? Or do I just need a new PCM. Thanks 🙏🙏
I would assume just the circuit board inside is cracked in places or solder joints or just something inside and after the vehicle is running for a certen time its vibrating and causing it to act up as it is trying to warm up . These are very very notorious for this problem I have fixed so so many with this problem after this jeep the 4.0s or v8s both do it
Having this same problem “again”. Had this problem a couple years ago and replaced the PCM and it worked for a while. Then It would start to cut off again a year or so later so i changed CPS with OEM part and it was good for a while. About 1-2 years later , where I am now, its starting to do it again. I cant wrap my head around it being the PCM or CPS again. But Ive heard something about the factory radio. Because the truck just shuts off, no sputtering or spitting. Just up and turns off. Feels like a grounding or some
Kind of electrical issue. Any suggestions? Maybe the coil? Thats of the only things i havent replaced.
Could be the coil or anything. Really is hard to diagnose without being around it to see in person . Cpuld be needing a tune up or crank sensor. Really not clue and yes the radios ive seen that cause problems. I would go buy a after market one and that way u know that's done plus it be better than stock ones they don't pickup good signal stations. Also seen the radios cause the battery to die over night .
@@KnuckleHeadGarage27 Having the same issues as well. Sputtering, stalling, back firing to a point where it DID blow out my muffler. Looks like an open clam LOL. Coil was first to be replaced, then the cap and rotor. The PCM plug closes to the fender was my issue of being loose. I had ordered a re manufactured PCM to have on hand. Replaced that today as well as new plugs. Seems to run ok so far. Still has a flutter in the tac. The crank sensor is next on the list for sure then the three throttle body sensors TPS,IAC and MAP.
@@tinmansolo5855 yeah that's such a bad common issue on these jeeps and transmissions as well . This vehicle started to have transmission problems so they just ended up selling it instead of fixing the ecu butt yeah I see it so many times
@@tinmansolo5855 it was my ex gf jeep she had . Her dads was same year and everything as hers but his was 4×4 and it ended up doing the same exact thing as hers and also her grandpa's jeep same year and everything and ended up later on doing the same exact problems
Check the wire harness coming from the computer where it wraps around the back of the valve cover. There is engine stud on cycled 6 that sticks up and the wiring harness rests on it and it eventually wears through and creates a short. I just fixed mine with some liquid electrical tape, redid the plastic protector and placed a bung over the stud. Check this area before replacing sensors. I had the same symptoms described in the video.
These comments have me reconsider my purchase
I have an 87 suburban, the rule is that the jeep gives me less trouble otherwise I can't have it
Lol yeah they 're money pits as they age I see so many with the same problems for these jeeps but a chevy Suburban would be a lot better of a choise.
I’ve got a 01 XJ 4.0 with a misfire I can’t figure out with also I ton of electrical issues, I.e. passenger door/window, rear hatch (wiper and ajar switch). Anyways do you think this would also apply to my jeep?
If it were me I would start at tracking down which cylinder is misfireing first and then whatever cylinder it is then see why . Could be anything at this point but that's where I would start first
I have a 97 my obd2 does not have power can’t read the codes I have to do the ol 3 key turns and read the o2 code , I wish I could use my scanner, have you seen this ? Love the video keep up the great work and wisdom God bless you.
@@jamesdodson9417 that's odd you can't use the scanner to get the codes , sounds like lost communication with the computer or something along those lines . I've had that happen before but on a OBD1 vehicle , couldn't read codes but had the light on and ended up being a bad ECM on it
Great video my jeep is doing the same thing I have had many diagnoses from the fuel pump to o2 sensors to it could be the transmission.
start with the fuel pump realy. It's under 20 bucks and that was wrong with mine doing the same thing
Fuel pressure regulator
98 Laredo same issues, runs well for a bit then I have to keep the engine lit to keep it running .at intersections so have you., usually about 2 k RPM.. am I causing more damage down the road?
The main problem on this vehicle and most of all of the jeeps with 4.0 or v8s but mostly 4.0 they are notorious for computer issues ive seen alot
Yes I had the same issues. Was the PCM fallowed this vid th-cam.com/video/uY62r-rtvls/w-d-xo.html it fixed my problem. After a lot of parts and money troubleshooting. Pretty simple and easy
I have a 98 zj with 278.000 miles
@@KnuckleHeadGarage27 4.0 inline6
Question
Did you have any codes, I had the same problem and also thought it was the computer, I replaced the crank position sensor just make sure it’s OEM and fixed the problem
No I never really had codes or anything . The only thing that did was ignition coil. And I replaced it twice because of problems but main problem was the computer it was all related to that . U could literally wiggle the connectors to it while was running and the jeep with cut up or just cut off stall out and this went on fir months like this until the customer decided to sell instead of buying another computer for it cause vehicle had other issues too . Already had other things done to it . New water pump , new temp sensor , ignition coil , plugs , wires , cap and rotor , serpentine belt , tires , alternator , radiator , cherry bomb muffler because the stock one blew a hole in it from the vehicle backfiring , plus few other things so they just sold it instead. Has transmission problems tho was slipping in first - 2nd gear sometimes would shudder really bad and the lifters or rocker arms would rattle so bad as heard in video. I Believe they got 500 out of it
Also had oil pressure problems dropped low at times so engine was really wore out . Had almost 240,000 miles when she sold it
Have you heard about cutting off half of the bolt on the left side of the computer fixing the issue?
Yes I've heard of that idea but never tryed it . Replaced the computer on this vehicle and sold it not long after that
Ces can you let me know if you can help.me fix my 97 jeep grand cherokee limited . I change the crank sensor it still shotdown while driving
Honestly it could be really anything but they're very known for back computer issues right there at the connections on the firewall
I have a 96 Grand Cherokee doing th same thing. I swap computer, installed new distributor with cam sensor, cap and rotor. Replaced spark plugs and replaced ASD relay. Check stalls then won't start. Constantly cranks. Left it parked a few hours. Came back it started. Could this be the fuel pump or ignition coil?
Yes that it could , or the crankshaft sensor .
But the fuel pump I would get a tester an see what the readings are for pressure an if it is losing fuel or how much actual fuel pressure your getting when u turn the key to prime it .
Ignition coil could be getting to hot or have crackes in it an causing the problem too
I have a 1998 Jeep Cherokee lardo and its shut off and backfiring and all the time but it does it a lot and I have three grandchildren that I use the jeep for to take them back and forth to the doctors and I can't figure it out why it is doing it. Please help me..... Do you think if I put some sea foam in it that would help? Thank you in advance yours truly a grandmother the needs help......
Sounds like you have a problem with the computer if you open the hood with engine running go over to the firewall where the computer is and wiggle the connectors that go to it if it cuts off or does anything weird Beyond normal then that's your problem. Because that was the problem with this vehicle I had problems with the computer and the wiring to it the connectors if you look up online there's a whole thing about the Jeep Cherokees cutting off and backfiring and having problems and It All Leads back to the computer because they're screws put into the computer from Factory and they are too long and hit and ground out the circuit board inside and fry it and that's what messes them up . I've seen it alot really have very notorious for problems these jeeps
@@KnuckleHeadGarage27 thank you so very much
@@barbaraknight1660 no problem at all I just really hope that helps and fixes your problem. Some people may not have the same issue but I've have seen this so many times on these Jeep Cherokees that has got to be the problem cuz that's what it sounds like
Hi I watch your video on 97 Grand cherokee...I own on that will not start..I replaced fuel pump,start sensor , rotor & cap still will not start ....help!
Interesting do you have Spark and enough fuel pressure? Need to check those
Serious backfiring on the 1997 V 8. Blew the silencer wide open. I changed the coil six months ago and no problem since.
Yeah that happened on this vehicle too the muffler blew in half so replaced it with a glasspack and was good to go again.
I really need help. My Jeep keep turning off. I already change fuel pump vap canister inyectors spark plugs clean fuel line clean throttle body new iac valve new tps. I don’t know what else to do 😞 I got a 1997 Jeep Wrangler 2.5 4 cil
Never delt with the 4 bangers an never knew these had those 2.54cyl
Thanks for this video it really helps a lot because my Jeep just started doing this lately and I couldn’t figure out why I bought a new battery and the alternator is still good but now I know to check for that. If I have any questions would you mind me asking?
Yeah man no problem at all glad could help . And yeah of course ?
Ok my mom has a 98 jeep grand Cherokee V6 4.0 and after she drives it for awhile it will just die on here going down the road or at a stop light or stop sign so do you think that it would be the computer connection then
Possibly could be go to it while it's running wiggle the connectors and see if it cuts up or dies and if it does then that's your issue
Hey so I recently blew my head gasket the car wouldn't start at all and then I put the blue devil liquid in it and now it start and idles but as soon as it goes to drive or reverse it dies would that be the same issue the computer connection or should I drop the gas tank and check the filter?
Could be the computer doing it . Could try wiggling the connections to it .
I hope you get this. I have a 97 jeep grand Cherokee laredo, 4.0 inline six with right 180k on it. Started as a minor stalling issue, then it would die at 55mph going down the road. Would always restart as soon as I turned the key. So I have replaced, cps, ignition coil, all new distributor, plugs and wires, throttle position sensor. Nothings improved it. It's gotten to the point when it stalls it will crank and crank and if it restarts it shudders and dies. May do it 2 times may do it 50 but eventually you can get it to restart and may not have an issue for the next couple hours. Ordered a computer of flagship1 got to today so hopefully my issue will be resolved
Sounds like it’s in security mode try putting the key in and cycling the lock 5 or 6 times all the way around hatch as well when you manually lock and unlock you ground out the security system you can go to the forums and find a lot more information about this a lot of ppl permanently ground the security system because they are rather fidgety and cause slot of problems
I have a 97 you can barely here a lefter is it ok to drive a long distance
Do you have Lifters that are ticking just make sure the oil is clean and full and honestly depends on how loud but I'd say it be okay but it depends .
Of ots like the jeep in the video then it's fine
I had hard starting problems with my 2001 cherokee , i notice the positive wire on the battery was pulling out of the battery connector not allowing a good connection. Strange but simple problem that i just over looked for months but i fixed it and it seems to run fine now.
Good glad that's what it was 🛠
I had the same thing happen on my 97 and also it's just now starting to act up with dead batteries after sitting at night and the airbag light comes on , the rear defrost light stays on and heater blower after key is clear out of ignition, there's a shorting out or crunchy noise from around the glovebox or firewall, a new rattling noise sounds to be coming from under center console during rough idle or when shutting down the engine or on startup I still can't find , plus now a loud thumping or popping noise in front end when turning left or hitting bumps that's gotten worse over last week, I was actually thinking 🤔 should I sell this thing? But I like the Jeep when all is well and I hear so much good about the engines , mines a 97 with about 155,000 miles , any help besides the major help of this video already I do appreciate, thanks all
I have a 95 jeep GC and I don't have the same pcm as In. The video I did the wiggle test and nothing. My auto shutdown relay keeps turning on and off tho. But all the symptoms leads to this. Oh and my pcm has alot of rubber plastic can't get to the chip where the soldering needs to be done.. Any suggestions..
This one not to sure not had that happen but I'd look into that relay and see what is causing it to happen
I have a 1993 jeep grand Cherokee Laredo V8. As long as I keep my foot on the gas it will stay running. Soon as I take my foot off the gas it turns off. Any idea what the problem could be? My search on youtube has lead me to believe it is my PCM. Would hate to replace that and the problem could be something simple or something else.
Could also be the Idle Air Control Valve/sensor. Google that, there are some resources on how to clean it, or you can replace for about $50. Easy part to get to.
I would recommend taking out the idle air control valve and cleaning it and cleaning the whole throttle body and maybe even replacing throttle position sensor but before I would spend anything I take the whole throttle body off and clean it really good and clean the idle air control valve and then put everything back together and see what happens then
A little late to this comment in regards to the 1993 jeep grand Cherokee v8 motor shutting off the moment you take your foot off the gas. Which was exact same case with my dad's jeep same year and model so just wanted to share my experience with other people having this issue to do what others here have suggested and that is to remove throttle body and replace gasket if you are removing it for cleaning and most important idle air control remove that from throttle body for cleaning as well
I'm having this exact issue right now. First time ever having this type of problem taking it to my buddy's shop I the am to see if he can help me out. Thanks for the info
Your welcome no problem at all and thanks for watching
Thanks is I've got a 95 jeep doing kind of the same thing as soon as you out it in gear sputters n want to stall sometimes backfires driving down the road. I'll give this a try . How much for a new computer or did you just solder it?
I told the customer how much it would be to fix it and everything and I decided to not do anything else to the Jeep cuz it already had like 200 and something thousand miles so they parked it and got something else the drive but the computers for these don't cost that much.
Ok thank you . I'll look into this most likely what's going on with my jeep have a good day .
@@shawncharleyboy3702 yeah your welcome no problem at all. Very very common on these Jeeps and I believe it's a recall as well and it all leads to the computer
I have one mines it will crank but if i had to go to the store or something n shut it off it probably wont start back up till like a hour or 2 i just found out i can spray starter fluid inside n it will fire up but i kinda feel like it might be over heating cause why would it start back up a hour or 2 the motor Spain but i also was told it sound like it ain’t getting no gas but i just gotta new fuel pump
Yeah sounds like a weak fuel pump and if you do that you need to change the fuel filter to at the same time
I wrapped a giant zip tie around mine and pulled it extremely tight, no problems since.
Lol if it works heck yeah
40+ pounds of oil pressure is great for a Jeep 4.0 if you want a little more put straight 30 or 40 weight in it. Although, I do hear some lifter slap in that engine .New lifters will up your pressure but it means removing that head.
Oh yes I know that engine is wore the hell out bad so and leaks oil too as well and trans slips anyway and I ran 10w40 in it and that helped but it wasn't my jeep was my ex's so and her parents didn't care and she cheated on me so I left but seemed like there was always something wrong with the jeep ha had the famous computer issues too kept cutting off and back Fireing and then that put a big ass hole in the muffler so I put a cherry bomb glass Pack on it and fixed that and hell didn't wanna start back either sometimes when it would cut off because of the computer they have a problem right at the connectors so that's why it acted up. and then had a battery drain issues too and needed tires and brakes and shocks lol so yeah and paint was shitty too and one fenders had a dent into it so that jeep seen better days anyway yeah and the hole time we were togeather she used me to repair that piece of shit and do things for her and 4 years found out she cheated on me and now she's marrying the loser she was cheating on me with so yeah . But I'll never own a jeep grand Cherokee with the 4.0
The vehicle was junked
@@KnuckleHeadGarage27 I hope you kept the cherrybomb
@@papablista627 no I actually didn't ha it was welded on and the jeep is at her house sitting in back yard but I haven't seen in while so I believe it's been junked and now she has a ford f150 haha which is even worse lol oh well I'll never own a jeep grand Cherokee I bring to you that
The jeep was never mine it was hers all along but I fixed anything that went wrong she mostly used me and but and sometimes she bought the parts ha hardly ever so but at least I made videos of it and helped people out and also got views so .
Great video ! Thanks .. helped me out big time ..
frank lombana thanks for watching I appreciate that and I'm really glad this helped out that's what I do and here for thanks for watching
My jeep is causing me issues now. It started by me pushing on the gas pedal and losing gas so I parked it somewhere and tried to start it again, it will start but will die after seconds having it on. Even trying to reverse it or drive it, it wont let me. Some say might be a fuel pump problem but they are not sure of it. Not sure what it is. Any ideas? It won't move at all. And dies quickly.
Try messing with the computer on the fire wall on left side the connectors or wireing to it wiggle them around alot bit or push them in like to make sure they have a good connection and then go try to start it i bet after that it will start and run these jeeps are so so bad very notorious for computer issues
I have a 99 that does Same thing this ond did on the first start how it starts for litterly a sec then putters and dies and I have to either unhook batterie and hook right back up or if I change out a couple relays under hood it will fire right back up. Whats weird is it will do this were it will not run for more than sec and I can keep key just forwards then sometimes you here the dinger go off and of that happens I can turn key it fires right up runs great. I love my jeep but it's got so many electrical issues I just want it to run normal I wish I knew what for sure was wrong with it
Yeah this was actually the ECM that failed and the owner family had 2 other jeeps just like it with same colors and same setup and ended up doing the same shit months later . So it's very very common on these jeeps
Try wiggling the computer wires connectors and see what it does then and it dies or something in sure it could be that
I've got a 97 GC 5.2 V8. Mine just quite working one day. But it had all these problems before it just up and quit working. It will crank but won't start. It will turn over and turn over and turn over but will not start. It's sooooo annoying. I've tinkered around with the PCM over there to no avail. Any input?
+iwuvbatman hmm interesting did u mess with the connections on the computer that's usually what goes wrong on the Jeeps
Mine is a 1998 Grand Cherokee limited 5.2l v8. It was the cam sensor in the distributor..... had long cranks and sometimes, crank but not start.... wait a few hours and start right up..... Jeep..... is todays heep
1997 jgc limited 4.0. Just changed the battery and now all it does is start and with in 10 seconds it dies. When we first got it we jumped it and it started and ran fine. But since winter is coming wanted to make sure it would start without a jump so that's why we changed the battery.
I would check for park and fuel pressure and go from there but really hard to diagnose like that
@@KnuckleHeadGarage27 how do I do this? Never had to workon my vehicles before because husband did it. He died in July this year so on my own with 3 kids so please keep it simple
@@TwistedpepperQueen honestly it's going to be hard to actually diagnose without looking at it personally and seeing in person what it's doing butt however sounds like it's cutting fuel to it or something for it just stall have u tryed putting your foot on the gas pedal to see if u can keep it running or does that not work either
@@TwistedpepperQueen these Jeeps are notorious for computer issues so bad the Jeep in this video had that issue the computer was actually bad that's what was causing the vehicle to cut off and cut up and backfire and go on . I read online somewhere about whenever they made the computers for the Jeeps the screws that hold the computer together or too long and they ground out the circuit board inside the computer which causes the issues of stalling backfiring not wanting to crank back that type of thing and sometimes you can take those screws out and put shorter ones in but then again you may have to replace the whole computer because of the circuit board been destroyed but honestly really hard to tell yours may be something simple but see if u can keep it running with your foot or something. When it cuts off does it struggle and then just cut off or does it just cut off like you turned it off yourself
I have jeep grand cherokee laredo 1997 and I have problem with the front break disk it's broken and I can't find new one in my country ( syria ) do you know any kind I can replace with it like I hope you help me in that
Fill it with cheese and let it sit in the sun for a week.
If you have not got it by now, arrange to get it from Amazon USA and sent to you.
Not sure on that buddy . Best bet would be a junkyard or something like that or order off line and havw it sent to u over their butt . I honestly couldn't tell you cause if u can't even order or get parts then not sure .
I'm having similar issues. Same jeep and year. And running really rich. I basically have to treat it like a diesel engine. It even blows black exhaust if I gun it too hard. My first attempt to fix will be replacing the fuel pump assembly and purging the lines to ensure good flow
Hmm sounds like u have bad fuel injectors and it's dumping way too much gas into it or a bad fuel pressure regulator something else kinda hard to tell tho
@@KnuckleHeadGarage27 that's my thought, but with a bobbing fuel gauge I figured I'd start with replacing the fuel pump assembly first then go plugs n injectors.
@@lilreb720666 yeah if u have fuel gauge problems then it's the fuel sending unit that sends a signal to the gauge of how much gas is in the tank . Butt
@@lilreb720666 or bad ground or somewhere to the tank
@@KnuckleHeadGarage27 good thought. I figure once I drop the tank I can check everything out
The 4.0 litre straight 6 was an AMC motor that is sourced largely from the older 232 and 258ci straight 6 units 1987 was the first year the 4.0 litre i believe with 173 hp and 225 lb.ft torque which was quite powerful at the time had a 91 jeep Cherokee Briarwood with the wood paneling it was good it was always a bit hard to start though and couldn't really tow much overheated easily they were geared high for overlanding more than towing but nearly bulletproof as much as any straight 6 motors were and still are
Do you have any spair computer laying around
I don't keep any they have cores charges when I have replaced these so I don't keep the old ones or any . Main reason is u can't just buy one from junkyard cause they wont work like that even if everything is the same the internals of that ecm are different an the program in them is different.
But however I had a 96 dodge grand caravan 3.3 that needed a ecm an I found one at junkyard off a church van with the same exact everything I mean everything same date an manufacture date on the inside of the door sticker so with that being a ideal twin it actually worked an the van fired right up after that .
@@KnuckleHeadGarage27 How much did a ECM cost you?
I'm looking for one for my 1996 Cherokee
Parts store with my discount was like $180 I wanna say . It's been so long an to many I've worked on to keep up but now at junkyard was like $50 bucks
@@KnuckleHeadGarage27 thanks
I have a jeep gran Cherokee laredo do I have up and down RPM probably pcm problem be
That could be a bad or dirty iac valve an causeing that
Hey, I have a 96 JGC Laredo and I changed the oil pressure switch yet when I crank it up, it stays up and turns off and the check gages light pops up. When I try to crank it up, it won’t crank back up. Anything I’m doing wrong?
Wait what is exactly going on now can't understand that exactly what is wrong?
CD'S Automotive Garage Like, when I crank it up, it’ll stay on but shuts right off and the “check gages” light shows up. I found out that it was the oil pressure gage that needs to be replaced and after I replaced it, it’s doing the same thing again.
*switch* I meant. I took it to AutoZone for a diagnostic and two codes popped up. The codes were P1398: Misfire Adaptive Numerator (PCM is unable to learn the crank sensors signal for use in preparation for misfire diagnostics) and P0351: Ignition Coil A Primary/Secondary Unit. So far, I have replaced the crank sensor and the starter. The ignition coil will be here next Tuesday and I was just see am I’m doing something wrong and trying to get the right part replaced instead of replace something else that doesn’t need to be replaced.
Do you worry about the exploding gas-tank ?
Huh ?
do you know where the fuel filter is
Should be like on the frame under the jeep somewhere or close at the rear at the gas tank .
I live in Colombia, and I'm thinking of buying one. I found a couple the owners moded the engine to work on gas and gasoline at the same time. what do you think of this mod and do you advise me to get one in the first place or I will run in a lot of issues later. I really appreciate the help
Well these jeeps are notorious for the computers or wireing harnesses to the computers , the transmissions as well butt . I've seen alot of these with high miles and still going
@@KnuckleHeadGarage27 thank you so much
Could be fuel pump.the pump filter and regulater all come as one unit.it could be the map or throttle position sensor.could be crank sensor.
I checked but . Tuned out to be the ecm computer for the jeep to run . Owners didn't wanna spend amymore cause trans was going so they junked it. Then bought a ford with trans problems and even more so yea stupid if ask me.
@@KnuckleHeadGarage27 do you just go to autozone and buy one.are they ready to go as is?
@@sleeperjeepsleeperjeep6006 yes u can get them but make sure they are pre-programmed or other words called flashed . Cause if not it won't run or anything unless it comes that way from parts store .
@@KnuckleHeadGarage27 yeah i thought you had to have them flashed
I have a 93 Jeep Cherokee keeps going dead on me. Sometimes it will crank right back up sometimes I will have to wait a few minutes or 5 minutes. I replace the coil and it started working right for a month and then started back the same problem.
Im going thru the same with my 97 changed the ignition coil she acted better gor a few weeks then bak to herself
My 98 is doing the exact same thing. Sometimes it’ll fire right back up and sometimes I’ve got lots of people honking at me lol
@@bleek6504 I already changed it twice the first time I changed it did fine for 2 weeks and started back doing the same thing
I'm having a similar problem with a 96 model but it's not backfiring or running rough per se it just cranks up runs for a few minutes then stalls out if we wait 45 minutes to an hour it'll crank back up. Could it be the same problem you're talking about?
Try wiggling the connectors at the computer and see if the Jeep will cut up or cut off or whatever while it's running if it doesn't then that's not the problem
Fuel pump RELAY is bad.
I replaced the 3 connectors to the computer already this summer. What else could it be or is it the same issue? I have the exact same jeep.
It's the computer it's self inside I read on a form about that the screws or too long and would Fri the circuit board inside or something like that so basically just replace the computer an it be fixed . But customer actually junked it instead of fixing it
so what if it isn't the computer connectors? someone told me once it could be the relay? or something along that line. it's under the hood. and is clay insulated. but its wired from the fuel system and goes to the fuel pump. when it gets hot or when not working correctly it tells the fuel pump to stop working and causes it to stall out like it does in your video. my 97 lorado. you would he driving down the road and would stall out. and spend the next 20 minutes or so trying to get it started again and nurse it back to the house.
Not sure kn the relay now it could be but not sure never had that happen pr problem mostly computer issues or the connection to it
that's what mine did and a new fuel pump relay fixed it
@@KnuckleHeadGarage27 well I'll do the cheap repair with the relay first. and then go from there. but while I'm in the area I'll check the pcm and connectors
@@DracosDiabolis yeah I would do that first ha cheaper things then that lol .
@@KnuckleHeadGarage27 yea, but I do have one hell of a headache for ya. i6 married up to a 4L60. lol
Did you try looking at the timing 🤔 of the engine.
Never needed too that was never touched. The computer was the problem u could wiggle the connectors and literally the Jeep would cut off or cut up an this went on for months . It would drive and run fine for a while and then all of a sudden sometimes it would act up and just act up bad and it got very very irritating was a pain in the ass
They sold the jeep instead of putting more money into it cause trans was going out too
Hey there I have a 95 inline 6 and it's cutting off after a few minutes in traffic, or at a stop sign. I've also heard of backing to screws out or replacing the screws with sheet metal screws. Have you heard of this? And what is this computer or the part called if it needs replacing? I'm not mechanically inclined so I apologize for sounding like an idiot
Yes I've heard about all of that . Basically what I would do is just replace the computer to be done with it . these jeeps are so bad notorious for the computers going out and causing the same issue that you have as in this video I've seen so many of these with same problem so much I wouldn't ever want to own one .
Could be the throttle position sensor almost always is what causes that problem.
Helped me out too! Now my problem is the a/c and radio don't work and none of the fuses in the box are burnt out Any ideas?
Same year? 97?
I have been dealing with similar issues. There are 2 or 3 fuses that deal with the radio. On occasion I have to remove and replace the fuses a couple of times to get power going to the radio.
Thx Man! You help my Jeep zj 97” 🤘
Your welcome man glad I could help out in some way! . Thanks for watching
th-cam.com/video/CBm5ZAmwJIw/w-d-xo.html
This is my solution repair :) Work 100%
i have a 96 grand jeep cherokee laredo 6cyl 4.0 i chane the fuel pump and regulator but im still having problem when i press the gas it fluctuates if i pess the gas to the foor it back fire plz help me with this situation.
Did you change the fuel filter as well too cause u should have .
Also could be anything and it would be hard to really help you out without being there I don't want to say it's this or that and then you replace it or whatever an it not fix it .
When did it start doing this let's start from there and what has been done to the car before this happened
@@KnuckleHeadGarage27it was last yr I drove it and when I went to start it. it wouldn't start so I change the tps ignition coil distribution cap crank position sensor.. and it was driving but it would not go fast itbwoukd jerk a bit while trying to go at a high speed..
is there any way I could send a video and let you hear what I'm talking about
and I change the spark plugs
the vehcile starts fine and everything is the driving part
I have a 98 grand Cherokee limited 4.0L and recently it has started to die on me when the motor gets up to operating temp. Gas pedal becomes unresponsive and it will die on me and doesn’t like to start back up. Sometimes it will even back fire. My mechanic said it might be shorting out due to water being sprayed from my bad water pump. I’ve already had the screw cut down 1/4 inch from computer to firewall. I need help!!!
I’ve already changed the crankshaft position sensor, could be a dirty idle control valve? I don’t want my Jeep to die.
Try to go to the computer and wiggle the connectors and see what the vehicle does if it's cold or hot when it's running it shouldn't matter and see if the vehicle acts up a cuts off if it does then you need another computer .
CD'S Automotive & Repair I will try tomorrow and post the results. Thanks so much.
CD'S Automotive & Repair just wiggled all the connectors and nothing happened, car still running fine but the car is cold.
CD'S Automotive & Repair I started the car and left it running in the driveway, as soon as the car heated up it shut off and wouldn’t start right away. I’m convinced now maybe it has to do with my coolant system.
I just accedently deleted my whole rant to much , to many people , having to many of the same problem we shouldn't be paying for. So who do we need to contact to file a class action on Jeep .
things dont last forever lol
The paint is what pisses me off the most. I fixed or am fixing the other problems on my 97. Called Chrysler and they said there's nothing they can do about the paint. Told the guy to shove it and hung up lol. I feel your pain dude.
the jeep is 100 years old what do u expect.
lmao, I have the same grand Cherokee too. same color same issue. I have 214k miles though. My muffler exploded and blew off the car completely haha. I spent a year reading codes and changing out sensors and shit. Finally took it to jeep for a diagnostic. They said it was a short in the computer and none of the sensors I changed. Anywho so I bought a new ECM and put it in myself and never had a problem with the car again.
Awesome man that's good . It's very extremely common on these Jeeps I see it all the time
@@KnuckleHeadGarage27 Yep, I still got the jeep. This had happened a good 10yrs ago. Has been a very reliable vehicle. I knew a guy with the v8 version and it stayed in the show longer than it was on the rd.
Please is there any way I can talk to u I’m kinda having the same plm but pulley squeaks too
The noise or squeak is probably the Belt
The pulley on my 94 jeep Cherokee started squealing off an on, so I let it go. - Bad mistake! - The pulley froze up and ruined the belt, while driving one day. Had to have it towed and repaired at a garage. Anyway, no issues yet with motor backfiring or stalling. But, should it ever, I'll know what to check out first.
would a computer out of a 1996 xj 4.0 go straight onto a 1996 GG 4.0?
Umm no probably not . Things could be different like for emissions and such . It has to be exactly the same as for the manufacture date as well . Because ive ran into this before and will probably need to be flashed to the bagel your putting this computer in so it runs right for that car or you really Could do damage or something to it if not done correctly
No!
I wonder if that fan shroud will fit in an XJ
Not sure if honest but it could never know if everything else is same setup
Where do i get new connectors for the ecu and how do you replace them
It's the computer itself that is bad or was bad on this one . U can clean the connectors with a cleaner just for that butt make sure the battery is not locked up when u do use the spray cleaner . But basically the computer is bad and after replaced that the vehicle was good again . But customer gave up and sold the vehicle after this .
Its hard to find
I have a 2001 grand Cherokee Laredo I replaced the ignition coil camshaft position sensor and I took it to a electrical problem I paid 200 dollars they said it should be fixed I looked at this video this is exactly what it does any suggestions
I would go to the left side to the fire wall and got to the computer and wiggle the connectors on the computer and if it cuts off and messes up it's pretty much a problem in computer is toast and sometimes it's just the connectors but most of the time these Jeeps have a famous notorious recall and issue with the computer on these and they all have the same problems and symptoms of cutting off backfiring doing all kinds of issues and problems but it all leads to the computer that will cause alot of headache and money
@@KnuckleHeadGarage27 about how much would it be for something like this to be fixed ?
But basically if it cuts off or does anything when you mess with the connectors to the computer then that's your issue which I'm betting is is I would start there an see . 🛠
@@Torrez_71 well all depends who does it but I do this for a living and had and seen so many of these and they all seem to have the same problems but replacing the computer isn't that much get that through parts store say like local AutoZone this one for this year jeep was running around $150 to $220 for a computer but make sure it is new do not buy a remain computer because u more likely have the same problems again and make sure it's comes preflashed programmed to the jeep or it won't work either. 🛠
@@Torrez_71 if it was broght to me it would be around $300 or so with computer and labor and all . For something like this to be repaired
Just replaced crankshaft sensor it still stalls out.whats next.
Did you check the connections at the computer?
So what fuse do I. Pull????
? I don't know what ur talking about exactly
Bought a pcm off of eBay it starts and run fine but idles low or high sometimes. My JGC only has a 147000 on it and I only paid 250 bucks so Im ok with it lol
Awesome sweet that's good glad that worked out . Thanks for watching
The idle low and hi is almost always a throttle position sensor on those jeeps
Check the coil situation or injectors ive got a 96. I instantly started replacing the distributor parts and it ended up being 2 leaky injectors..
It was the computer that was bad .
Wow I'm having same problem with my 98 n my brother found the same thing u did, computer issues.
Yeah these jeeps are so bad that and the transmissions and lifters making noise too
@@KnuckleHeadGarage27 I have same 98jeep with the same engine shutdown problem but yet to try my hands on hope ur video helps me out.
What if I'm not getting the fuel pump to work it's new and was working but now it wont ingage and prime when I turn the key on. This is on a 87 jeep Cherokee
I would check for power at the end of the wireing where the pump is and then if not anything. Then I would check for fuses and relays .
2003 Jeep Laredo straight 6 runs for about 5 minutes and shuts off but crank right back!!! Help me.
Possibly a vacuum leak really hard to tell with a little bit of detail and not see it in person
I have an exact same 97 GC Laredo, and the last owner already messed up the ECU connectors. Any idea where I can find/buy the connectors?
Not sure maybe on line or dealership. Something like that and this jeep was my ex's jeep and she sold it and live In nc lincolnton
@@KnuckleHeadGarage27 Thanks, I already looked up online, ebay, jeep parts stores and nobody seems to have them. I'll probably stop at a scrap yard.
@@pedronovales4931 yeah scrap yard should have that with no problem but you need to make sure it it's the same exact everything for the wiring it goes to the computer even though you're just cutting two connectors off of junk vehicle and then splicing them onto yours if that's what you're doing you need to absolutely make sure that everything is the same like same engine and trans and is if its 2wd or 4×4 and has to be close to the same year as well . Because the wiring may be different or different colors or have different options than yours didn't have or whatever just make sure everything is exactly the same and then whenever you do go to put these new connectors in and splice them in use shrink wrap butt connectors only . Nothing else but those . But if that what your doing and or planning to do
I am looking for that installation électric captor and...
my 1997 grand cherokee had it three years never failed to start one time now wont start checked for spark nothing installeda new coil still no spark so replaced crank sensor still no spark what the heck could be wrong getting good fuel also
Could be a bad distributor I would check into that but more likely could be a computer problem these Jeep's are notorious for computer issues really bad and a bad computer will cause no spark or no fuel pump or a check engine light or nothing at all
PCM/ECM
I almost have same issue and my jeep backfire and choked I change throtle and the injectors but no luck please help 😥😥😥
I would have started with ecm first before anything else . If I'd be looking into everything you touched and replaced sence your now having problems
I work on my folkes vehicles . my dad has a 1978 chevy truck 350 hei ignition . has no spark . I thing i traced it down to the ignition switch on top of the steering column. My mom has 2 jeeps - 1990 jeep cherokee 4 door Laredo 4.0 auto and a 1996 jeep Cherokee sport 2 door 4.0 auto. The 1996 is also doing the same thing as the jeep in this video 🙄. Last time it was a loose factory connection on the coil pick up and the ground connections that bolt to the passengerside engine block between the distributor and fire wall. Had to cut off the factory connectors and crimp on new ones and solder them to the wires.I will check the computer box connections . JEEP = Just Empty Every Pocket
Yeah they are money pits and alot issues with them . Which is ression I would never own one . Unless was the v8 option and if it was loaded with everything . But they all have trans problems and I've seen some rear end issues too.
my 94 did the same thing, turned out to be the fuel pump relay. Cost 16.36 to fix
Ahh good glad yours is fixed
I changed the computer on mine and it fixed that issue replaced the fuel pump and having a sending issue so replacing the assembly again and the injectors hopefully it’s on it’s way to recovery lol
My jeep has a rough idle and lacks power and feels like a slight miss, It feels like it's not getting enough gas, I replaced the map, TPS, and iac valve and plugs and wires, nothing's changed
It's a 97 4.0 zj, maybe fuel injectors?
Yes If it's misfiring it could be the fuel injectors are bad or dirty . Also could have sticking valves . Need to figure out which cylinders is misfiring on it too . Vacuum leaks can cause problems too
@@KnuckleHeadGarage27 thanks man
Pink steering wheel cover is the bomb.
Customer car not mine so i didn't pick it
@@KnuckleHeadGarage27 lol I just found a replacement steering wheel on eBay so I could get rid of my steering wheel cover.
I have a 97 Laredo 4.0 and it will not crank any pointers
Turns over at all ? And if it does then check fuel pressure and for spark
I have a 6 cylinder and mine just cuts off on it's own and won't crank sometimes
Sounds like what was going on with this vehicle above
Don't know if you will ever see this but thank you !
I Make sure every comment is answered.
Your very welcome hope it helped out!
Thank you to swow how to fix my jeep cherokee 97
No problem glad to help out anyone . Anytime thanks for watching!
NICE DODGE!!!!
Thanks for watching!
Were you able to repair the problem with this jeep? I fixed mine by cleaning the connectors and pins with an electrical spray cleaner instead of replacing the computer.
Yes it was the computer that was bad . But soon as it was fixed the owner sold the vehicle
EXCELLENT.
Thanks
SOOO this don't have anything to do with Fuel Pump????????????? When mine cuts off, you can't start again immediately. Have to wait about 5 minutes and then try.
Yours could be a bad or weak fuel pump issue or a fuel filter clogged up . Hard to say every vehicle could have something different going on with it
@@KnuckleHeadGarage27 It was the connector on the computer on firewall. I put contact cleaner in and some grease and it runs like new now. It was a $13 fix.
@@donniesmith8779 Awesome glad to hear! . These things are so common for the computer issues and connections problems
Jumped to the same conclusion's before watching the whole video ya id say the computer forgot all about replacing mine awhile bk nvr ends lol
Yeah the customer actually junked the vehicle they did not want to put any more money into it
I wonder if an 03 computer would work on a 96
No no no don't ever do that . You Could possibly do some damage to the vehicle if you do that . It has to be the same exact year like the same date that's on the sticker inside the door and same engine same transmission and it matters to if it's two wheel drive or four-wheel drive as well . But yeah that will not work don't do that I definitely do not advise that lol .
@@KnuckleHeadGarage27 thanks that's my luck tho got an 03 with blown engine but I have the source of my problem thanks to your video wow I have spent 7 years wrestling with this jeep bought new sensors plug wires because of the ticking sound how much I owe you lol
@@KnuckleHeadGarage27 watched a video on how to solder the ecm should be easy fix
Same exact miles door everything except I have 5.2. Same issue too lol
Yeah its a very common issues for these jeep grand Cherokees for computers problems . The customer of this vehicle actually sold it instead of replaceimg the computer or fixing it .
Mines die at idle or when I’m driving it’s sputters trying to die
Can you please help me with a little info
It backfires too . It leaks oil and coolant is slowly going down .
Hope you have a leak some where on the outside of the engine if not then it's a early headgasket going out . Need to check everything an see where it could be leaken the coolant
@@KnuckleHeadGarage27 was it your ecm that caused to sputter and backfire ?
@@alexanderlopez-zacarias3848 yes after the ECM was replaced the jeep was good as new again .