Jeep Commander: Dead Misfire / No Parts Needed
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- เผยแพร่เมื่อ 16 ต.ค. 2018
- In this video we have a look at a 2006 Jeep Commander 5.7 that came in with a dead misfire on cylinder 7 and a P1417 stored in the ECM. Turns ou sometimes you just need to boot the car! Or is that re-boot? -Enjoy!
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Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of South Main Auto Repair, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained - ยานยนต์และพาหนะ
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For what ever reason in the beginning of the video when the engine is misfiring the camera makes the engine sound awful (mechanical noise) TRUST ME WHEN I SAY THIS, it was not "knocking" or making any abnormal noises, despite how much better ON VIDEO it sounded after the repair. Just thought I would clear this up 🔧🔨🔩⚙
-Eric O.
(TSB) - 09-015-04 and 09-013-04 - says: “Vehicles with the Multiple Displacement System must use SAE 5W-20 oil. Failure to do so may result in improper operation of the MDS... maybe??
You know.... I always forget why i lug around my old Techtronics 'scope. Seeing you fight with that SnapOff reminded me why...
Actually, engines are pretty precise and intricate pieces of machinery. And these machines are highly dependent (now) on sophisticated electronic hardware and software to make them run as effectively and efficiently as possible while providing power and reliability each and every mile they are operated. By the time an engine package rolls out to the arena of operations, the engineers are knee deep in the next generation, the next innovation, the next hardware improvement and newest software development. At some point during its operation, this machine convinced itself that there was a problem with cylinder 7 coming back to life after a shutdown. Momentarily stuck solenoid, a tiny bit of debris in an oil passage.... or a solenoid coil that’s become temperature sensitive... just enough to trigger a code and assume a solution to protect itself. And then, someone like you, with a much higher understanding, to free it from it’s bonds. To become 8 cylinders again.
Hey, Eric, let us know if you got it to trigger the code again. 😂😂. Had you goin there for a second didn’t I?
great video......still want a classic car...... too much Jetsons beepen boopen danger Will Robinson for my taste
@@clevelandmaker386 have to agree. I own a shop in Cleveland lol. I believe we should worry about nox but this driveless self parking auto seats are crazy. So many people can't drive now so can you imagine. Also when something breaks expensive, even a auto door handle switch can cause a no start. I love the new technology for power and torque but everything else is a wash. It has nothing to do with figuring out the technology I love the challenge but it's calling the customer and saying your bill is 1200$ for garbage.
A friend of mine complained about her Mercury Mountaineer not running right. Looked at it and diagnosed it for 2 hours checking every little thing and came up empty. Went into ForScan, reset the learned procedures, and warned her it might take a few drive cycles to acclimate. Ran like a champ and has been for a year now. Sometimes these newer cars just need to relax and have a beer (reset).
Interesting technique of scoping the solenoids current waveform to see the internal mechanical operation.
Applies similarly to injectors too.
Ah the bearded man! Nice to see you lurking about the place.
Hahaha, I replied previously and didn't notice it was to Big Clive.
As the solenoid core moves the inductance changes and produces that butterfly current waveform. There have been papers over the years about measuring the solenoid position based on current feedback from the coil, I wonder if that is used here. I wonder what they use to declare the solenoid failed as opposed to just a misfire.
Bears & cars, who'd a thunk it lol
Not a waste of time, just thorough and meticulous. Great video, thanks as always.
I made my living as an trouble shooter/repair guy like you do. Your customer is very lucky(smart) to bring this to you. You did all the rite things to determine what is wrong. In the end you had a problem that went away with the rite resets. Many lesser experts would have taken the thing all apart and thrown parts at it. I really appreciate this video as it shows how you troubleshoot to find the problem. I had to have an FCC license to do my work so when doing something like this and being asked what did I do to fix it. I would reply, I waved my license over it. thanks for the comments on the license waving. we do need to have some fun.
I like the "wave license over it" going to steal that! Charge the $10 to hit it with a hammer... Then also charge the $500 to know where to hit it.
For 34 years I was an electronics tech for a university chemistry department. When PhD researchers asked "What fixed it?" I sometimes said "Scientists have to explain why things happen. Techs don't".
I work on some old worn out CNC machines and have crossed wires I shouldn't have learning myself the ropes. Now, these machines don't go anywhere and are in the same room so when something miraculously starts working when I show up, I claim it's scared of what I'll do to it.
Your a great mechanic not very many left. Keep up the good work
Cody3232 Cody3232 You're*
and here come the grammar NAZIs
They got nothing better to do joe
You don't need grammar to fix them there enguns
My wife said "If you can't do it, I can't do it".....Got to love that woman!
You are the man dude. Please do not be afraid to go into detail about the hows and whys. I do know mechanics to a degree, but would of loved to hear you explain somethings in the vid. It seemed almost like you were embarrassed to go into depth because you think everyone here is a master mechanic. I would bet the farm that 90% of us learn a lot from you. I know an hour long video instead of 33 minutes would seem dumb, but, maybe you can really go through a whole set of videos of "How to be a mechanic 101" ect. Even if you did that and sold it, im sure you will find a LOT of buyers here. I really like your approach to talking to us while doing your work. I am really hoping you would make a full "mechanics 101" type video, that really teaches each component of the drivetrain + suspension and gives a run down on it all. That is a HUGE task to fit in a video but I honestly feel if you came out with a 10 hour (or whatever) video, that shows mechanics by your knowledge and explained by you, you could sell that dvd or instant download like hotcakes. Im really serious, I know I would be the first to get it. Please think about this as I feel you can start with the basics, the proceed up and up. You can even use your videos on here that best show how to deal with a problem. I honestly think it will do well for you financially, and make many, manyyyy of us very happy, to support you and too learn.
This is exactly why I watch your videos. Full honesty is hard to be found! I'm excited to see your follow up video
Things I learned:
Default strategies happen to preserve the cat and other things.
It was working before it broke.
Check engine light is called the $ light
Awesome video! Thanks for sharing!
Love the hood light! Nice and bright!
I only have three things to say:
1) To err is human, to really screw things up you need a computer!
2) I blame the ethanol fuel and aliens in their spaceships
3) I'm happy to see you represent your "push rod" with two fingers.
Keep up the great work and thanks for all you do.
Garbage In, Garbage Out. A computer can only be as smart as the programmer, and is usually much dumber.
Ethanol fuel kills carburetors, not really any effects on fuel injected engines other than water in the fuel sometimes. (keeps me in business as I work on small engines and outdoor power equipment).
No comment on the "push rod" analogy.
You are an amazingly talented technician and a pleasure to watch. Thanks for the education.
Bobs your uncle! Totally incredible thought process. This would of tripped many techs. There is no logic the ECM got stupid! Too much electronic BS.
My thoughts: Vehicle was probably run low on oil at some point and the ECM saw something it didn’t like during the cylinder management and set code and disabled injector. Vehicle oil was corrected and everything stared working properly again but ECM programmed to continually disable injector until a reset is done. This programming was probably done by Chrysler engineers because they either thought it was necessary to protect components or they figured there is no way it would ever be an intermittent problem.
But the other cylinders didnt trigger the condition nor stayed disabled. The ECM can still re-test the cylinder periodically to see if it is able to work again or not and if the test is positive, just clear that condition. The defensive programming is very important, and so does the self healing approach. Looks more like a glitch. ECM continue using volatile memory to store important data even when the car is shut off. The only way to force a data reset is a battery disconnect. Now, serious noise like the one produced on cranking with drops up to 5V have a chance to corrupt data. Automotive modules are designed to deal with that. ... but nothing is perfect. After all just keep in mind that any cellphone needs to be reset once a week (to say something) while the ECM reset ocurr on a battery change or under scan tool control. I mean, is posible to have a permanent issue even after a glitch. Sure we can discuss that data is covered by CRC, but this is not enough. Im asumming a noise issue somewhere. It is not uncommon
TJ Roelsma Over here in the USA we call that an Italian Tune-up, because the older Ferrari's and Lambo's would be bought by rich people as a status symbol and used as daily driver instead of being used as a street-legal race car, which meant the engine would start running rougher and rougher. Reason is that all those short trips never let the engine warm up to operating temperature, so it clogged with carbon and deposits.
Solution? Change the oil and filter, fill the tank with premium gas, cruise around at around 60 miles an hour for half an hour or so, then floor it from 30 to 90 miles an hour, and repeat that acceleration 10 times over.
Change the oil because short trips result in condensation inside the engine crankcase resulting in the oil acidifying, fill the tank with premium gas because that's what it's designed to run on (especially if it has any kind of forced induction), the 60 mile an hour cruise brings the engine up to operating temperature, and the rapid acceleration burns the carbon off the the pistons and knocks it loose from the valves.
Result? Internally clean, smooth running engine.
Driving 90 MPH is more expensive in Massachusetts than taking the vehicle to a qualified mechanic!
Love this stuff, never apologize for using your experience and knowledge, doesn’t matter what other people think… I find your content pretty amazing, I thought I was a pretty good home mechanic and learned rather quickly that I’m not and learned vast amounts of information that I’ve not seen anywhere else… I’m betting the majority of guys out there just throw parts at problems hoping they’ll go away, I appreciate the concept on knowing and proving the problem before replacing a part. I don’t work on cars for a living but I do work with other technology and this is how I approach things as well. It’s not a waste of time and the more you do things this way the more efficient you become at it…
Those Chrysler cylinder deactivation solenoids will wipe out the driver in the PCM in a heartbeat when they go bad. The local PD will bring me the stuff their guys can’t handle. I had a charger come in from them with a DTC for cylinder 7 solenoid. Checked the resistance of the solenoid, used a fused jumper to test it while watching the amperage and all was fine including the harness. Tested at the PCM and the driver was bad so it was replaced. Came back a few weeks later with same code. Replaced the solenoid and the PCM again and no more problems. Tried clearing the codes and disconnecting the battery for a while but no dice it was fried. They have some shitty protection on those driver circuits so from now on it gets replaced just to be safe.
I find it hard to believe in today's day and age that the ECM would not have a current limiting resistor on that driver? I can do the math because we know the voltage and the amperage draw and the resistance of the solenoid. That would be the fastest way to tell.
South Main Auto Repair The outputs of the ECM typically won’t have any current limiting resistors but instead have current monitors built into the chip or FETs and are usually self protected. They will lock out the output until it is reset. Usually just a battery disconnect for a few minutes will do it.
South Main Auto Repair you’d think it would have something but that was two PCMs. The original and first replacement. Kind of a shock to me at first.
Aaron Hammett naw it was fried. I tried everything before replacing the first and again with the first replacement. Cleared codes, reset PCM, disconnected battery cables and connected them together for around an hour. I pulled the pins out of the connector for the solenoid so it wasn’t connected when I hooked the battery back up and had a test light in its place so there was a small load there. Trust me I thought of everything possible.
al whit it was an intermittent fault with the solenoid. It’s had to have been a good year since and no issues. It may have protection for the circuit but in this case it must not have been fast enough
even though you found nothing wrong and charged your diag fee, the customer should be happy the head did not have to be removed.
Your diagnostic skills are truly incredible.
Always enjoy hearing your thought process while diagnosing problems. Just proves how thorough you are to find the right problem and not just light off the parts cannon.
What REALLY makes you a great mechanic and person is the way you mentor people! Mr Josh, Ms Hannah, Ms Marie, its been awesome! Thank you! It not only gives hope for our future generations, but they also get to see how bad Chrysler screwed up our Jeeps!!!! (Chrysler rage)
And add all of us to the list of mentees!
I you drive one with a Hemi engine, you might like it!
Another great diagnosis video proving Eric O's ability in getting to the root of an automotive issue rather then throwing parts at it & wasting money! I have a problem with the cooling system on a 03 focus which eludes me! I wish i could have Eric O diagnose the problem! I found a smoked cooling fan resistor wire harness & replaced both the resistor & harness yet, the fans don't cycle properly! put a toggle switch on the 5v reference wire & it turns on the fans There is several ways to make the fans run constantly which caused my alternator to fail so, running a toggle switch allows me some control but, IT IS NOT THE CORRECT SOLUTION, JUST TEMPERARY! I SO WISH ERIC COULD DO MOBIL AUTO REPAIR!
Keepin it real! I know you will figure it out. You always do! Wish I had a mechanic as dedicated as you are to quality and of course the gift of gab! Lol. You guys and gals are awesome. Keep up the great work! 👍🏼👍🏼
Your to be commended for the time and effort you put into your job. Taking the time to be analytical and doing it right and only fixing what needs to be fixed. A lot of folks these days just throw parts at vehicles. Your customers are fortunate.
It's a Jeep thing. You wouldn't understand.
I have waited so long to use that he he he. I'll see myself out.
I understand... I have the hat too....
Facts Don't Care About Your Feelings Lmao, is that a reference to what the apare tire covers say on the back of jeeps?
It was a Jeep advertising campaign I saw a few years ago in Australia. My sisters bought one each despite it :D
Dang , ya beat me to it ( was gonna say the same thing 🤣 )
So Damn thorough Eric , your one of the few that don’t just throw parts at the issue and expect the issue to go away , Dr. Eric the auto guru....
Great video, you say a waste of time, I say a great investment in time to learn how a system works. Thanks for sharing Eric 👍
Currently we have no current problems, Eric you are a genius. You disconnected the wires and plugged them back in. Corrosion kills.
You are freaking awesome brotha. Like other have said , most would have replaced all kinds of parts...Not you..Your time and attention is much more valuable for that..
Cool vid Eric, enjoyed learning the MDS operation and circuits, even if a simple reboot fixed it! Way more informative then watching someone jam silicone paste in window tracks... lol
Excellent diagnosis. Great work as always.
Some days your the dog, some days your the hydrant…. Done a great thorough analysis and viewers learned from it. And enjoyed it!
That's why I love you brother you fully checked the car love your videos !
I think you were triggered earlier by the fact the setting criteria didn't seem to add up, that along with your thorough diagnosis that there didnt actually seem to be any valve issues, sealed its fate. Great work Mr O.
Well hell Erick, what can you do, besides give it back to the customer? You checked all possible electronic inputs, and suddenly it resets it self. Setting watching you do this knowing something is wrong, and the suddenly no problem. Aaggg, computers! who knows why they do what they do. Nice video Erick, thanks for sharing......
no parts required, hey pal that PHAD line, You'll be wearing no shirt next !
Or the flip flops while working.... lol
Awesome diag. I love watching other people's diag process, it helps fine tune mine. We all have our ways of going about stuff we have learned through good 'ol school of hard knocks. I do believe this vehicle will come back with either a bad solenoid or the jumper harness under intake shorted (i have seen oil soaked wires with insulation falling apart, intermittently touching) . from experience only i would of resorted to swaptronics if the harness passed the visual and have the customer take it back if i cant duplicate it.
Hey Eric, I think this guy wanted to come to my shop!! Too bad I was hanging out with Keith at the ASA Super Saturday training. SO you stole my customer hahaha
Couldn't have been "stolen" by a better shop, though!
Eric was at the ASE Super Saturday work day.
State College to Buffalo is quite a drive. I live in York PA about 125 miles from State College. BTW that engine sounds like it has other issues.
This video is a few years old but is a big help this tech knows what the hell he's doing, I like how he analyzes using knowledge of electrical. I do "HVAC/R" my skills are similar in my approach. I have a problem with my 2006 Jeep Commander 4.7L, repaired a myriad of issues from overheating first due to fan blade shroud coming lose over radiator (thought it was a leaking radiator), then leaking plastic "T" to cabin heater core, after replacing that & filling radiator (which was not empty) engine wouldn't start, I only disconnected air intake hose to "M.A.F sensor" momentarily, no leaking "vacuum tubes", when I put my diagnosis computer on the engine it said cylinder 1 misfire then multiple misfires. I will check it tomorrow to figure out what the hell is going on. (Prior) I never let the needle touch red-only to halfway and turned vehicle off until I could put it in a good parking spot. I left it for four days it was too cold to mess with until repair stated above.
Eric,
I just had a Dodge ram in the shop with the exact same problem. After following the same diagnostic route as you I came to the same fix. Disconnecting the battery for a few minutes fixed the problem. Customer has had the truck for a few weeks now with no problems. After searching online I've found a few doccumented cases of this.
Not surprised you found this. Modern computers 🤦
So the PCM thought it has a fault and shut off the injector, which was the source of the misfire. Brilliant! Good job diagnosing it and not charging the customer a fortune to pull the head and replace the lifters/solenoid. You are one of the few very good diagnostic techs Eric. You deserve more credit than you give yourself!
Eric you are on mother loving fire! Also I think the whole TH-cam thing adds a perk that most may not recognize and that while your recording this you have someone or the effect of someone to explain and or bounce your theories off of and justify yourself and your method of diag. Like I would would other fellow techs at work except Eric brother it’s all you! Great work man thanks for the vid and brain food
My Magnum has this system as well so I'm watching and listening with intensified interest.
My Aspen has this also and I would be interested to know if the correct oil viscosity was used when last changed. Is it possible that the cooler oil before closed loop is having a hard time getting through the valve body? I have heard of this being an issue and perhaps after it runs awhile, it might make the oil passage easier?? Just a silly thought. The Tow/Haul switch kills the MDS so you can verify states without a tool if needed.
At least yours is a V8 (I assume) and not the dreaded 2.7 V6! My brother in law had both his head gaskets blow on his 2.7 Magnum.
"Have you tried turning it off and on again?" - IT Crowd
Love that show.
"have you tried forcing an unexpected reboot?" ~ Maurice Moss
In an Indian accent - "have you tried restarting your computer?" You - "yes! It doesn't even start!" Indian tech support guy - "is it plugged in?"
Great frekin’ video, had me on the edge of my chair. Well, as an auto mechanic turned commercial HVAC tech, (now retired) I can tell you that 99.9 times out of 100, an electrical related problem will return after a reset only. Unless there was a known voltage spike of some type. Maybe this one will fall into the .1% category. Thanks “Big O”.
In the future that code will trigger your memory to perform a reset before doing anything else. Great work ethic anyway. That's why I keep coming back to your channel. As an ex diagnostic technician I feel your pain. Great work Eric as always!
"A reboot fixed it." Never said that about any of my vehicles! lol Thanks Dr. O!
Was a Chrysler mechanic for almost 16 years, when Chrysler came out with that MDS system it was a real pain in rear...can tell you that system would throw a lot of issues if the customer did not change oil on a regular basis, when they get a lot of miles it seemed we changed out a lot of those solenoids due to lack of clean lubrication
Some days you get the bear, some days...well, you know. Great video on diagnostic process, Eric!
Just started watching your channel and absolutely love it..so much that I’m thinking of driving from GA to have you look at my 2002 Taurus driver window not rolling down problem lol
Eric, interesting problem not many see like this problem and thanks for an AWESOME video/ info u r sharing with us enjoyed every second of it thanks brother for what u do.
Sometimes a little bump on the road makes an elm go nutty, great diagnostic Eric.
Matey, been there and it could be that in the diagnostic process you've fixed a continuity issue just by unplugging and plugging back in fixed the issue. Just know we are watching and like what you do. STAY STRONG AND GOD BLESS.
I've had two or three chevy trucks with the "reduced engine power" message that never came back after unplugging the ecu and scratching my head. Love it.
Hate the fact a computer issue jacks up your car now more often then a mechanical failure and they are a bigger pain in the ass to trace, great work bro watch your vids daily
Well, noticed something like this before. Had to do with how long the vehicle was driven and noticed the injector wiring from that similar cylinder was sitting on or almost on the engine. Which caused the misfire. Moved the wiring and added more protect from the heat of the engine. Simple fix and changed the oil. 😊 Love the videos Eric O. South Main Rocks. 😁 I've found vehicles have things like hiccups. 😁
Eric you are the man. You know the manufacture/dealer would of had this person buying a lifter assembly and a new solenoid plus all the labor $$$... Just reset the PCM and bam, Bobs your uncle. I don't wanna speak too soon,, but I didn't see another video on this so I figure you didn't find any issue with it that next morning. Awesome video, love the channel. Keep up the good work and I wish you and your family all the best from Florida.
Thank You Mr Wizard !!!!! now have a couple shots, once home. I owned 2 different MDS Hemi's never had an issue with either, but, I also owned a 6 speed R/T 3.92 gears posi. No MDS on stick HEMI. Loads more fun. Great on fuel also.
You can only do your best, and from what I’ve seen that’s pretty darn good!
Mr. O; you are the Lieutenant Columbo of the automotive repair industry.
Great vids dude keep them rolling .
I get a kick out of your use of "somewheres". For some reason I catch that any time you say it. Keep up the good work sir!!! Great content!
Good one eric you did all you could do you are soooo good at what you do great job flush that one next
I like the way you build evidence, even to the point of double checking that you're on the right cylinder, etc. I suppose if you spent your day testing the same brand of car, some parts of the workflow could be streamlined. However guys who work on many brands with generic scan tools can't possibly know code setting criteria for every circumstance.
Spelunkered, between SMA, Brian's, and you, I'll beat my 2001 Dodge to the grave.
Great video and ideas to troubleshoot this issue. Enjoyed this one !
I might try something very basic like disconnect the battery overnight and/or re-flash the ECM and see if the problem still exists. Great video Eric.
"They ask me why I drink" i feel you cool to see the different ways of diagnosing ppl do
Thanks first of all for the great videos Eric. I further my knowledge s bit with each of your videos I watch. I have a hemi 5.7 in my ram 1500 so anything on those you do I watch with great interest in case I need to use it down the toad. Take care and many thanks sgain.
That makes a lot of sense about the reboot, after all it is computer controlled. Good job and I hope it holds. Thanks for the video.
Glad to see I’m not the only one who uses a Surface Pro!
excellent video Eric you did great very educational
Gotta love them confusers !
Got to love the 16 spark plugs in the 5.7
Cylinder 7 ERROR
>file not found
"Have you turned it off, then turned it back on again?"
Cylinder made by apple ?
Just install Linux on it and it will run great.
Omg this is so over my head. Idk what that first box u had was, but I want one!! Especially the key programming one in another episode. It almost seems you could make the motor make French fries with that thing. You could start a school, you think like an engineer!! Amazing wealth of knowledge
Hey Eric, next time you have a car with this situation just hit the rest button, I think this was a geat learning lesson, great job!!!!!!!👍👍👍
Dang Mr. O', that was a Rough one there, Sir. Don't know what you could have done to make it any better?? Just have to chalk that one up in the "WTF" column, take an Excedrin (OR Bud light lol ) and move on to the next job.
Thank you for taking us along for the ride Eric. (and STOP beating yourself up, NO ONE could have done it any better/easier!!!) GREAT VIDEO!
Mick from UK. This has happened to me a few time's. Check and double checked and did just same as you. Did reboot. And car runs fine. Some injectors are coded. So if you put new one it you have to tell ecm or so that's what you have done. So some time it forgets. And you end up with a misfire.. Or injector has a hissy fit. Tell injective module to shut that one off.. It happens. You did everything by the book. Hay you mite of just give up. And some people don't know you can do a reset. Been watching your cha for few weeks you work same as me. Work though what wrong. Sometimes coming back next day. To figure out what's wrong. And one video you did. Where you had a fault you had was down to power steering Val fluctuating... Your like me never give up. Your ace at what you do
Classic interpretation of how the lifter and pushrod interact ;)
Oh jeez that's great... I wonder how common this is to happen? Great video!!
Anytime we had problems with our computers, the first question IT would ask was, "Did you turn of and back on again?" :>) Thanks Eric for another one full of fun!!
Runs great
Thanks again
Any time, and thanks for the doughnuts!! Dude those things are insane haha!
Awesome to see a customer here giving appreciation, you've a great mechanic. It's RARE.
I agree. It's rare to see a customer take time to reply on a video. I read most of the comments on all of Eric O's videos and this might be the first or second i've ever seen.
Computers they said...they'll make everything better they said...lol
I long for the days when something with a carb and not much else comes in for work...nothin like breaking out the simple tools and using yer head to find out something...then tuning it with nothing more than a screwdriver to set mixture and a wrench to loosen the clamp on the distributor to set the timing. Now all we got are rolling computers with failure modes that sometimes make you want to yank out your hair...
Kenneth James: In this and many other modern cases the old "5 percent rule" applies. Where to understand the problem and fix it, you have to be 5 percent smarter than the computer. ;-)
Eremon1 they don’t lol
In my heart of hearts, computers do make lots of things better. Can they create more problems than are necessary? Sure... but.... they can also be used to make cars safer, more reliable and cleaner. Computers can accurately keep systems in check to such a scientific degree that you end up with a precision experience in comfort, livability, performance and safety. That can never ever be given up once its experienced and adapted to by the end user. People might nostalgicallyremember and appreciate old cars, but they won't ever give up computer managed cars. It's done wonders for the industry.
Yeah computers.... they need to be rebooted regularly. Someone I know had problem with his Ford. No start, cranked fine. After disconnecting and reconnecting the battery it worked again, no issues, no codes popped up. So yes, reset and reboot makes wonders these days. The same problem with Android devices, reboot every week or else strange things start to happen (wifi hotspot slowdowns, bluethooth wont connect, app crashes/hangs/... etc).
wow, fascinating! Thanks Eric
My brother has this engine in his pickup. I was always very pleasantly surprised at the amount of acceleration this 2006 pickup has. I would equate the acceleration near to my car in 1970. It was an ss396 with 350hp with cold air cowl induction. I recently got a dodge Journey RT with a 3.8 v6 and while no slouch with the vvt engine with a 62te transmission awd and it gets really excellent mileage about 2.5 times better than my brother's pickup. I think it would be a very close 1/4 mile race as the pickup might beat it off the line until about 150 yds when the Journey would pass it with very light panels like the back & side doors & lower rear fenders and an extremely light hood.
Oh by the way I love your show I love your station you are a awesome mechanic technician and shop owner just wanted to let you know sir thank you for your videos
So this is the infamous "logic lock" situation your posted over on Diag.net website. Glad to now have a video to go along with your original written description of this issue.
Haha funny... I've just come from a video that says exactly what you said on a video titled "dui suspect drags cop"
You did 100% correct in my opinion Eric.
Hi Eric. No parts needed? Wow! You are almost as good as Ivan. :-))
Well done diagnostic work.Kind of eliminates any electrical issues.I also think it is a lubrication issue could have low on oil at one time or lack of maintenance .dirty oil can cause lots of issues with very small oil passages on displacment on demand engines.
Darn jeeps,you are good with those computers and electrical.
ECM problems are a real pain. I am only guessing here but the ECM does like to remember stuff and I wonder what it was remembering that was causing it to reset the code. You are certainly very thorough and even as you said several times that you were probably wasting time checking the injector on 7 and reminding us the ECM can shut it down I would not have been a waste of time if the injector was in fact bad. I was thinking the oil line could have been clogged when you started to explain how it works (and the hint that no parts were required to fix it) Remember that Vett with the injectors that died when they were hot. I just don't get why they are putting ecms in the engine compartment. So far out of all the car fix you tubers (the ones you have mentioned) I appreciate yours the absolute most. Thank you. If it were feasible I'd drive to your shop from LA to have you work on my car.
Thanks very well done!
Thanks Eric,the cats outta the bag now. Secretly been pitching the show "This old screw" to TLC starring Pam Anderson, sure to get picked up now!
I'm trying to get better at working on my own car, but when I see all the computers and diagnostic tools you need to use (and understand how to use) to solve so many problems on modern cars, I know there is a limit to how much I will EVER be able to do myself. I don't have the money or knowledge to use all that fancy stuff effectively. I love watching you do it though!
Sick bar light man
I feel your pain. Same issue with my dakota
I was thinking about this same issue today in that there are so many ways to attack diagnostic problems that sometimes we end up losing time following a method like what you laid out here (which I have zero issues with btw). On the other hand how many cars have you received from other shops that didn't follow basic procedures and missed something you caught by checking the basics? Nobody likes chasing ghosts and it sucks not being able to bill out time spent chasing them that's a good reason to keep your profit margins decent on other jobs to make up for all the many ways we can loose money/time on the ones that kick out butts. Keep up the good work besides there was a ton of good info in this video for those who were paying attention.
I own a Swiss watch Eric...runs as smooth as a Jeep Commander!
Eric, fantastic video. Enjoyed the troubleshooting process. Know you found nothing but it was a good learning video. If it shuts down again hope you do a follow-up. One question if it was nothing why was the plug so fouled? Must of been misfiring for awhile. Guess there was a GREMLIN running around in there. Good video though thanks for taking us along for the show. ❤️
Wow hard reboot! Good Job Hope it works....