Good Diagnosis. Normally I would say tow that Jeep POS to the junkyard, but that vehicle has been taken care of and deserves to fight on. Nice to see an old vehicle that has not been abused to death.
Dude I absolutely love your videos and you really take the time to deep dive into the issues and prove it without just shotgunning parts or guessing the repair.
As an aside, I can attest that the Autowit is the Jam! Got one on Eric's recommendation and it already saved me from a dead battery reading at 6 volts.
@@scientist100 But if you have a car or battery charger, booster nearby you can always make sure it's full on way to a call just in case. I ordered one. It was $30 off retail price on Amazon today so that made the price more appealing as a tool that could get me out of a jam on a job. If it's a job where it'll be overnight then I generally take my little $35 NOCO 1 amp charger and use that so it charges the battery and if someone were to steal it night like I would be out $100 rather $35, actually about a little less than $32.50 as I have a couple plus a 5 Amp charger. 100Amp schumacher maintainer for programming, Die Hard booster box that i've had a few years I got from Menards for about $119 before taxes at the time as it has a built in inverter, 5v USB plugs, mini compressor for airing tires up in a jam.
I have a '97 GC that's purely an off-road toy that had been parked for over 3 years. I went to start it about 6 months ago and had the EXACT same problem as this customer. I have scoured the internet for answers, but couldn't find anything definitive, but it wasn't a huge deal because the GC isn't a daily driver. I started looking into it more just a few days ago. This is BY FAR the most informative video I have seen! Very well explained, gentleman! Even before seeing your video, I ordered a reman PCM because it really couldn't be anything else.
The day in the life of a mobile mechanic ! Always carry a long set of jumper cables...they don't require charging up. Nice diag. I was hoping you would have gotten the okay from the customer to bring back a new battery from the parts store, 700 CCA or greater. Peace.
The e c m is really easy to pull a part and resolder the bridge as needed and only takes less than a hour and will save you hundreds . I've done this on several of the Cherokee jeeps .
Heck yeh! Great diag, reman part, jumper problems. But you guys kept at it, and the sweet smell of success when it ran. WOOOO HOOOO ! ! ! The icing on the cake.....food and drinks! All in a day's work! The life of a mobile tech! Keep up the good work!
@@scientist100 which is also a good thing. This eliminates wiring issues or a sensor pulling the circuit down. Now on to the next test. Process of elimination
@@DJ-tn7vj 5v ref usually means the computer is alive lol, not the case here since it wasnt talking but what if the con lines to PCM were not good? This test did not eliminate that important step.
10:50 funny thing about that is when old computer parts start to act funny or not work anymore, people put them in the oven at a certain temperature for a while to get all the solder joints to reset, and it works most of time
@@foxwithtubesox1075 it's really a last resort for a dead board, but you clear as much stuff as you can from the board and hope for the best. In the case for this vehicle, you'd have to remove the board from the shell before baking it.
Hell yeah bro.!! I have the 00' Laredo. Same engine. Just changed all the a/c components before the summer. So hot here in H-town, had to be done. Love your videos man..!!
You guys did a great video! Clear, concise, easy to follow. Especially for those of us out here that aren't strong with electrical diagnosis. It was fun to watch, and I actually felt the hope building along with you as you got closer to fixing it. I'll definitely look to you guys in the future for any other issues that stump me. Keep it up!
Great diag guys! Oz is too much fun! Every where we ever went, like NYC, tequilas were always on the menu!! You two have some awesome personalities, and hopefully we'd all be able to meet up some day, with good food, music and family!
Just had my wife's 2021 wk2 with the V6 fixed for this issue. Could only get it to crank and not fail when using the remote start. It would always start after the fail. After 2 dealer visits they finally tested the Fuel system and found it needed the filter and sending unit. Little to no pressure, but no error codes or anything. All at only 25k miles. Crazy. I know this video is on an older Grand cherokee but hope it helps someone who is searching fort answers on a newer jeep.
Best automotive repairs videos ever.I've learned a lot of things. My question is, if you had to reprogram the immo again to the keys for the car to get started.
Two fun things about the 4.0 ... 1) it will start and not run if the battery is dead. You have to throttle it manually to keep the rpms up. 2) unless you use a Mopar CPS, it'll never run right (or for long)
Really thanks, I have a Jeep Grand Cherokee 1997, and I too noticed the check engine light doesn't light up, I remember thinking that's strange, anyways seeing this video now I know what to do cous is the same problem that I have now it starts and then it's stalls so many thanks 👍
Guy, Awesome video very good information . I'm working on a 1998 jeep grand cherokee. 4.0 Same problem, Trying to do my own work. The jeep starts runs good until you wiggle the center plug on the pcm. Im going to clean connectors and see what happens. Thank you for your vids, You guys are great, Thanks Terry
Hi erick. I have learned a lot from your videos. Keep up the great work!!! I hope you reply to my question.if the pcm is bad why a is there a 5 volt reference on those sensors?
That’s what I need to know. If the test all passed. What concluded the diagnosis. Seemed like the check engine light was the symptom that diagnosed it.
You guys are awesome! Going through the same thing on my Jeep. If the coil/plug replacement doesn’t work, I know what to check next. Thanks! Where did you get the PCM?
I have a 2007 Chevy equinox and they made this vehicle from 05 to 09 I think. I’ve change the crank sensor and had problems cause wouldn’t start ruff idle and cut off. The point I’m getting at when you change the crank sensor replace it with the exact part manufacturer that came out from the vehicle not all manufacturer wire there crank sensor the same.
Heckkkkk yea had a fun time on this one. Just sucked that I couldn’t get my ice cream :(
yo you pimpin' hermano!
I hope Eric got you 2 scoops along with the wings n beer. Fun video
Maybe next video! 🍦
you should ask President Biden for Ice cream. he's an expert because of his frequent national ice-cream eating tours around the country
Llpl
I watch a lot of mechanics fix it shows and I mean a lot but hands down you have one the best on the TH-cam very impressive
Thank you very much. I truly appreciate it!
Good Diagnosis. Normally I would say tow that Jeep POS to the junkyard, but that vehicle has been taken care of and deserves to fight on. Nice to see an old vehicle that has not been abused to death.
This is proper analysis! Not just spraying the problem with new parts
I keep a jump pack and jumper cables that usually never get used because jump packs are just awesome! Cables would have came in handy.
Dude I absolutely love your videos and you really take the time to deep dive into the issues and prove it without just shotgunning parts or guessing the repair.
As an aside, I can attest that the Autowit is the Jam! Got one on Eric's recommendation and it already saved me from a dead battery reading at 6 volts.
Scotty recommended it, I dont think I would recommend it as it is not strong enough on it's own to start a car.
@@scientist100 But if you have a car or battery charger, booster nearby you can always make sure it's full on way to a call just in case.
I ordered one. It was $30 off retail price on Amazon today so that made the price more appealing as a tool that could get me out of a jam on a job.
If it's a job where it'll be overnight then I generally take my little $35 NOCO 1 amp charger and use that so it charges the battery and if someone were to steal it night like I would be out $100 rather $35, actually about a little less than $32.50 as I have a couple plus a 5 Amp charger. 100Amp schumacher maintainer for programming, Die Hard booster box that i've had a few years I got from Menards for about $119 before taxes at the time as it has a built in inverter, 5v USB plugs, mini compressor for airing tires up in a jam.
I noticed no activity on the dash cluster initially. Then a reading on the fuel gauge after PCM change.
I have a '97 GC that's purely an off-road toy that had been parked for over 3 years. I went to start it about 6 months ago and had the EXACT same problem as this customer. I have scoured the internet for answers, but couldn't find anything definitive, but it wasn't a huge deal because the GC isn't a daily driver. I started looking into it more just a few days ago. This is BY FAR the most informative video I have seen! Very well explained, gentleman! Even before seeing your video, I ordered a reman PCM because it really couldn't be anything else.
The day in the life of a mobile mechanic ! Always carry a long set of jumper cables...they don't require charging up. Nice diag. I was hoping you would have gotten the okay from the customer to bring back a new battery from the parts store, 700 CCA or greater. Peace.
He had a warranty on the battery at Walmart, so he was going to replace it after we got it running. Thanks for watching!
@@ADVANCEDLEVELAUTO My sources have lead me to believe the Walmart Batteries, their upper line, are the best value out there on average.
You two make a great team! Really great to see you guys go out afterward for food, drink, and bags. More!
It’s a certain kind of “high “ when you fix cars. Great feeling!!! Good job guys!
The e c m is really easy to pull a part and resolder the bridge as needed and only takes less than a hour and will save you hundreds . I've done this on several of the Cherokee jeeps .
It is nice seeing you guys work on a car together. I have learned a lot from watching both of your channels.
More to come! Thanks for watching!
@@ADVANCEDLEVELAUTO are you located in California by any chance
Great video and excellent diag! But if I may, nothing replaces good ol’ fashion jumper cables!
Yeah, that cracked me up! Two heavy-weight diagnostitions don't even have a set of jumper cables???!!??!!???? They both still rule, however !!!
Oz is the man! Nice seeing u guys hanging out. Always good stuff. U guys r the best.
Dude! They should team-up an make a channel together. It would blow the F up!!!!
Blessings from Trinidad and Tobago I like your videos before I watch them because I know it will be educational and entertaining.
Heck yeh! Great diag, reman part, jumper problems. But you guys kept at it, and the sweet smell of success when it ran. WOOOO HOOOO ! ! !
The icing on the cake.....food and drinks! All in a day's work! The life of a mobile tech! Keep up the good work!
Yes! Thank you!
jumping cable would be very handy .
Yes they would have been handy
Going after the 5volts ref is 98% guidance what to go after. I have learned that. Eric and Oz.good work
In this case the 5 ref was there 😅
@@scientist100 which is also a good thing. This eliminates wiring issues or a sensor pulling the circuit down. Now on to the next test. Process of elimination
@@DJ-tn7vj 5v ref usually means the computer is alive lol, not the case here since it wasnt talking but what if the con lines to PCM were not good? This test did not eliminate that important step.
10:50 funny thing about that is when old computer parts start to act funny or not work anymore, people put them in the oven at a certain temperature for a while to get all the solder joints to reset, and it works most of time
Wouldn't the plastics melt before the solder does?
@@foxwithtubesox1075 it's really a last resort for a dead board, but you clear as much stuff as you can from the board and hope for the best. In the case for this vehicle, you'd have to remove the board from the shell before baking it.
Hell yeah bro.!! I have the 00' Laredo. Same engine. Just changed all the a/c components before the summer. So hot here in H-town, had to be done. Love your videos man..!!
You guys did a great video! Clear, concise, easy to follow. Especially for those of us out here that aren't strong with electrical diagnosis. It was fun to watch, and I actually felt the hope building along with you as you got closer to fixing it. I'll definitely look to you guys in the future for any other issues that stump me. Keep it up!
Great diag guys! Oz is too much fun! Every where we ever went, like NYC, tequilas were always on the menu!! You two have some awesome personalities, and hopefully we'd all be able to meet up some day, with good food, music and family!
this is the exact video i needed to watch to know what is wrong with my own dark green jeep grand cherokee 4.0
this is the best mechanic repair chanel on you tube ,great job
Great one here the best one for the 5 Volt reference explained very well and quick learning so much from all your video's thanks Eric
Just had my wife's 2021 wk2 with the V6 fixed for this issue. Could only get it to crank and not fail when using the remote start. It would always start after the fail. After 2 dealer visits they finally tested the Fuel system and found it needed the filter and sending unit. Little to no pressure, but no error codes or anything. All at only 25k miles. Crazy. I know this video is on an older Grand cherokee but hope it helps someone who is searching fort answers on a newer jeep.
Hey Eric I just love you guys working together always a great combo… please you guys keep up the great job
Best automotive repairs videos ever.I've learned a lot of things. My question is, if you had to reprogram the immo again to the keys for the car to get started.
This vehicle did not have any immobilize system. Just a regular old key.
As a mechanic no better feeling than confirming your diag was correct and she runs!!
Provecho Eric, muy buen contenido de tu video que Dios te siga bendiciendo como hasta ahora. Un gran saludo desde Tijuana 🇲🇽 Mexico. 👍👍👍
Mandé los tacos para este rumbo. ¿Hong Kong, Adelitas, Chicago?
It’s nice to see you guys having fun. Good job as always.
I always carry a good set of battery jumper cables in my truck
I need to buy a good set. Thanks for watching!
Two fun things about the 4.0 ...
1) it will start and not run if the battery is dead. You have to throttle it manually to keep the rpms up.
2) unless you use a Mopar CPS, it'll never run right (or for long)
That was a fun time and a great diagnosis, Beer and wings always beats ice cream!!
Really thanks, I have a Jeep Grand Cherokee 1997, and I too noticed the check engine light doesn't light up, I remember thinking that's strange, anyways seeing this video now I know what to do cous is the same problem that I have now it starts and then it's stalls so many thanks 👍
Love watching you at work. You definitely know what is going on. Thank you for sharing your knowledge.
Hey there oz..great yo see you. Great video. Love the descriptive video. Bring on more videos.
Saludos a Los dos aqui andamos en Houston Tx 💪💪
Both of you gentlemen are awesome!
You guys are so cool!!! Thoroughly enjoyed this!!!
What do you use for your wiring diagrams? Especially love the one that you use in some videos that allows you to highlight certain circuits.
I liked this video because you really talk everything through.
Nice job 👍 we need guys here in Tucson
Another great video, but... Neither of you guys had jumper cables? You guys could have saved so much time. I always have them as a back up.
Guy, Awesome video very good information . I'm working on a 1998 jeep grand cherokee. 4.0 Same problem, Trying to do my own work. The jeep starts runs good until you wiggle the center plug on the pcm. Im going to clean connectors and see what happens. Thank you for your vids, You guys are great, Thanks Terry
GOOD JOB ON THE JEEP MATE
you guys earned those beers and wings, nice work!
Mission accomplished nice dinner enjoy great guys
Awesome diagnosis Eric & OZ!!! Hey guys could you ad a link for PCM company? Thanks guys!!!
Great job guys. Would like to see you use voltage meter for ground and voltage check. Just in case there is a wiring problem.
Great, great video sir!!! 😎 Always appreciate your videos/information. Thank You 😎
When you gotta get to work and you watch a diag at 2x speed and your brain explodes.
Solder joints broken in PCM where plugged into. Fixed mine no parts required.
Nice to see you two together. I see the beer didn't help your game either. (-:
I just need more practice!
Good video, good diagnostic routine.
Dam missed the ice cream truck. 😩🇨🇦. Good work men
Good call !
Thanks guys, i have a 94 and im having the same problem
Sensei🙇
Someone get that man his damn ice cream he deserves it. Hope this helps me with my rig I’m having a very similar issue, thanks for the help y’all!
The dynamic duo!
Too cool! Glad yall got it going!
Gotta love the no starts😎
They are usually easier to solve than intermittent problems.
@@ADVANCEDLEVELAUTO 4sure😎
First time seeing you sipping beer man....🤓🤓🤓🤓
Beers earned guy's njoy 😁
Love your posts, informative and interesting, keeping us Aussie's up-to-date!!! Doing a fantastic channel with correct guidance and diagnosis
It was interesting video to watch, I like old Jeep vids. Bzw, I will use jumper cables instead of dead packs. Thanks Guys. Cheers!
It's nice to see guys like you get there job done Excellent and have fun doing it 👍🙌🤟🍻
I love the collab guys
What company did you use to get the PCM? I have a friend with the same problem and we know it's a PCM
Hi erick. I have learned a lot from your videos. Keep up the great work!!! I hope you reply to my question.if the pcm is bad why a is there a 5 volt reference on those sensors?
That’s what I need to know. If the test all passed. What concluded the diagnosis. Seemed like the check engine light was the symptom that diagnosed it.
Excellent presentation. Systematic step by step.
Excellent troubleshooting and narrative
Nice work! Best video I've found so far to check everything. Thank-you
Cheers 🍻 🍗
I like your friendship!
What a beautiful team work, highly respect top gun
You guys are awesome! Going through the same thing on my Jeep. If the coil/plug replacement doesn’t work, I know what to check next. Thanks! Where did you get the PCM?
Loved this video! We see you gettin’ faded at the end, guys. 😂
We drink responsibly!
Awesome video bro keep doing the right thing!
Those wings look delicious too bad you got me in the middle of a 7 day fast!
Thanks for the video! Great work!
My dude 😜👍
nice team. congratulations 👏
Beautiful way to end a hard works day lol 😆
Both of you are genius
good job guys and for the Diagnostics thanks for always sharing the videos 👍
Great video you have hit on two cars that I own
Eric, do you have cases where you cant figure out something?
Thanks for sharing... Cheers.
So glad I found this video. Thank you!
All that technology and you guys dont have a pair of jumper cables? Otherwise great video.
i mean it did start right ?!
Oz and Eric 👍
If it had 5V reference how was it the PCM
I have a 2007 Chevy equinox and they made this vehicle from 05 to 09 I think. I’ve change the crank sensor and had problems cause wouldn’t start ruff idle and cut off. The point I’m getting at when you change the crank sensor replace it with the exact part manufacturer that came out from the vehicle not all manufacturer wire there crank sensor the same.
Good job men
buen video maestro como siempre gracias por su ensenaza
Is this car have CAN communication? If it has CAN than it's not enough to exemine power and ground of ecm?
Good Stuff Gents!
Nice.This format worked. Nice to see you two work together. How long does the super capacitor charger hold charge?
Common to have the same issue be the crankshaft position sensor also. Can CPS also cause check engine light to appear sometimes then go away?