1998 Jeep Grand Cherokee, turning off by it self

[@lucidstates6787]

I can say I've had the same issue for 3 years replaced every sensor cleaned all grounds then resoldered the ecm contacts like you did, but didn't work almost a year later I pulled the brain back out and resoldered at hot temp and that fixed it. I love my jeep and am so glad I didn't have to get rid of it. So this absolutely will work just make sure the solder points are properly melted and contacted, so good luck guys

[@Thundarr995]

Yeah,they're pretty good vehicles. They just have some little quirks here and there. Same thing with alot of Mopar vehicles. Along with the electrical issues,Mopar and GM used soybean plastic insulation on the wiring since at least the early 90's. Rodents love to chew on the wiring in these vehicles. I have an S10 p/u and rodents attacked my CPU wiring in that and I also have a 96 ZJ. Rodents chewed up the fuel injector wiring in that. A friend at work has a 99 Dakota. Rodents,probably mice? Chewed up the wiring on that too causing intermittent electrical issues. I had no idea so many people have rodent problems with these vehicles. I went to the wrecking yard to get a wiring harness for my S10 and alot of them had rodent damage on the wiring too. I've never even seen a rat or a mouse around here. Well,besides the dead ones that my cat occasionally leaves at the front door.

[@barryfloyd8127]

This absolutely 100% works. My son's 1998 Grand Cherokee Laredo had all of the symptoms. We replaced the crankshaft position sensor, coil pack, etc., and still ended up with random stalling issues. Last mechanic we took it to said we needed to replace the PCM. I found this video, resoldered all of the pinout connections and it hasn't stalled since. Works perfect.

[@daleoriane6974]

Barry Floyd such good news! Any updates on how its running now , and did you just soltderd the connection posts as in the video ?

[@mickeycars]

Glad I can help 👍

[@TheColeweems1]

Thank you for this fix. I had a refurbished pcm that i paid for $400 dollars. I had been chasing this check engine light for 2 years after getting the new pcm. I didnt believe it was the pcm because i thought getting it new it couldnt possibly be my issue. I opened it up to see the worst soldering job of my life. One of the solder spots didnt have any solder and had burnt plastic on the pin. It was the 11th pin from the right going left. I had a p1391 code and random dying. This fixed it

[@mickeycars]

This is great 👏👏 !!! And yes sometimes this pcm’s are made so fast that the soldering is crap so glad this video help you

[@dryan8377]

This guy is 100% correct. The aluminum plate is a HUGE problem that dissapates all of the heat from the soldering iron. This dude's soldering work is actually gorgeous! You will need at the MINIMUM a 60 watt iron, or a soldering gun to do this job. It takes a bit of patience, but by the time you get to the 4th terminal, your work will get much better quality wise. Pretty isn't important... making a bad connection good is! I've done this on 3 separate modules...

[@mickeycars]

Yes it takes some time to do it, but your right after about the 4th it gets better Glad I can help 👍

[@7jack7]

That solder work looks BEAUTIFUL! If that is not your greatest work you are in great shape!

[@mickeycars]

Jack thanks but I can do bette with a better equipment 👍

[@lawayz-larryarnold3269]

My brother started having a cut off problem but thought it was the coil so he replaced but it wasn't, it was still shutting off. We checked youtube for a problem and everything pointed towards the Crankshaft Positioning Sensor so we changed it, but nope. So we checked out your simple fix, just shortened up the (2) T-15 bolts holding the inside board to the outside and wallah. Was getting a code but it even fixed it. Thanks.

[@mickeycars]

Larry Arnold I’m glad that everything work are you and your brother if you have any other questions on that car please let me know and I’ll try to help you as best I can’t thank you

[@israelbrown7622]

Thanks for making this video! My problem is solved easily with your help.

[@mickeycars]

Your welcome 😁😁👍👍

[@scottlanders3812]

Excellent video. Thank you for taking the time to explain how to do this. It's gonna save a lot of people lots of money and aggravation. Thanks again your awesome 👍

[@mickeycars]

For me that all it matters, I don’t do this vídeos to make money! I do this vídeos to help people save money and learn how to do things ! Thank you for the comment 👍👍😁

[@witnesszer0]

If your jeep starts then it might not be the crank position sensor. These year's jeeps are bad about percolating the fuel. They have no return line in the fuel log. That area gets really hot as the jeep runs. Check the fuel pressure not enough will cause: long start times, stalling at red lights, at speed, backfires, bucking. When your jeep dies for shez and giggles bleed out the fuel line at the fuel log schrader valve (with a rag please, or gas will go everywhere remember its: hot, and might be steam, or boiling) and then key on and start the jeep and see what happens if it runs people might think you know whats wrong with it. They do have problems with cold solder joints everywhere at pcm, and headlight controls, bad corroded grounds you gotta ,check it all ,clean it all ,or solder it all

[@charleshuse3071]

Thank you sir this is what I've been looking for. Have the same problem a week ago and must fix it like you said. Now I know what the problem is.

[@mickeycars]

Glad I can help 👍👍

[@AlA-jt4cx]

I just did this today thank you!!! Worked like a charm!!

[@mickeycars]

I’m glad I can help 👍👍

[@ibberman]

Thank you for sharing all the info, great video. At 2:18 I thought several people had mentioned loosening or shortening those two bolts? Apparently they were too long and shorting something out behind? Could have been a different vintage. Thank you again.

[@mickeycars]

Not in my case , I didn’t do that and it work for me 🤷🏻‍♂️ thanks for the comment 👍

[@nwolf682]

Thanks for your time to post this. I have had the same problem however as in recent posts, some have said to tighten the pcm mounting bolts and use locktite. If this doesn't work for me, I'll go further and do what you did. Thanks again.

[@mickeycars]

nwolf682 You can try That but The reason why they told you to tighten the bolts is to put more pressure on the PCM because of the false contact that's why I took it apart and re-soldered the whole thing If you have any questions just let me know

[@dianamorrissey2057]

great video thanks!! im concerned about the gel liner. i live in an isolated town, tahsis, bc, canada and can't get automotive parts unless i wait a week for delivery. what did u do regarding the seal?

[@USA__2023]

I did this on my 98 ZJ this weekend. After reading various posts about the issue. My symptoms are the same as most people's. What made me look at the ECM was I noticed when it acted up the gauges were dropping too. I had code P0351 which can be caused by the ECM.Pin number 2 had been overheated and the solder melted out of the joint. So far it has 3 hours run time with no issues.

[@mickeycars]

Clay Polen that’s good new , keep me post it please

[@Elena-yn2fu]

Clay Polen did the problem ever come back? I have 97 grand Cherokee that stalls when coming to a stop randomly and have trouble starting it sometimes. Have the same code p0351 was looking into the ignition coil and crank shaft sensor at first but after messing with the wires near the pcm while it was running it died on me. Ganna open the pcm and try soldering, curious to see if it’s a lasting solution!

[@wesleybryan238]

When you are encountering this shutting down issues, will you receive a fault code that will then lead you to the PCM? I am having the same random cutting out on my 2004 G Cherokee Lorado but I don’t believe I have any codes. Also the vehicle will start up right away no issues. What’s everybody’s advise.

[@andrewevanoff1192]

I noticed you had a long crank issue. Get a can of "Seafoam" at Walmart's automotive department (next to all the fuel cleaners) and pour it into the gas tank. Read the instructions on the can. Do not refill gas tank until most of the treated fuel is used up. This will clean the fuel system and the pressure regulator inside the tank that causes fuel pressure drop after the car sits for several hours or more. Do this at least once every 10,000 miles. Do not put Seafoam into oil. Use it to treat gasoline only.

[@mickeycars]

Andrew Evanoff yes I noticed that but it was not the fuel system that it was clock or nothing like that the problem was on the air intake right at the idling Control valve, he was really disgusting full of crud and oil I clean it and now I got a short crank but thank you for the advice anyways

[@thefatman2103]

Is the first connextor on the far left that you resolder a ground?

[@alecstinson7017]

Have been having stalling at lights and while driving randomly in our 1998 Jeep Grand Cherokee for the last few weeks. Mechanic replaced ignition coil and crank shaft sensor; still stalling while driving around town. Took it out on the freeway for a 45 min drive and no stalling to and back. Just crazy but now he will look at PCM

[@Elena-yn2fu]

Alec Stinson was it the pcm giving you issues after all?

[@M3231-s3v]

I've had the video board on my computer die several times. I take the processor off and anything plastic off, put it in the oven 400 for 7 minutes. This softens up the solder connections and refuses them. So far so good. It could also be done with this board no doubt. You crunch up 4 pieces of tin foil to put under the circuit board to allow the heat to get to both sides. Put the board on a baking tin. There are videos here on youtube if you search baking or cooking video card.

[@mickeycars]

Martial 3231 I will not recommend anybody to put this computer PCM in the oven at 400° you could damage some of the components on this computer have connectors made out of plastic so it’s better for you to take it apart inside her every single connection by hand hope this will help you

[@elmstdogs]

did this on sunday Havent had a stall yet, was 3 to 16 a day Awsome

[@mickeycars]

elmstdogs glad I can help 👍

[@dankollars4501]

i have a 99 jeep cherokee. same problem, intermittently shuts off, runs rough, a couple times just shuts down and wont start. everyone with this problem should jump the ignition switch red and blue wire. put a switch between the jump so you can turn it off and on. drive the car with the switch on and see if this takes care of your problem. if it does then its your ignition switch, not the key tumbler, but the switch box that the wire connector plugs into. about a $40 part. i went through a lot cleaning grounds, new coil, cap, and wires, checking wire looms and it ended up being the ignition switch. my problem was intermittent so i put the jumper switch on and drove for a few weeks without a problem before i spent the $ for the switch. hope this helps someone

[@stuartpettipher8849]

Many thanks, this was a very useful video indeed! I’ve got a 1996 grand Cherokee 4L and the damn thing just won’t start, she cranks but won’t fire up as has no spark and I’ve tested everything and I suspect the PCM is playing up? Does my problem point towards a PCM as well? I’m based in London England so parts aren’t easy to obtain, but I love my battered old jeep a lot and use her for work and don’t want to get rid of her, any ideas please ? Many thanks and best wishes, Stu.

[@mickeycars]

Stuart Pettipher sorry I didn’t saw your question before But yes it most likely the PCM Maybe you have to do what I did in the video Hope the Jeep still running 👍💪🏻

[@jeremyb2907]

Yours is easy just check for 5 volts reference on cam an crankshaft sensor they control fire an injections

[@itsxjustxcarls]

What size are the bolts into the PCM?

[@markcountryman5204]

I have a 2000 jeep grandcherokee with a 4.7 l. I changed computer. And crank sencor, cam sensor, plus my fuel pump and filter. Drive it 10 mins. It shut off. W ait about 1 hour or so. It starts back up. Then do it again. Any help ?

[@mickeycars]

Mark Countryman Mark this sounds more like the PCM or computer was not programmed the right way I will suggest you to check the fuel injectors to see if any of those or all of them are clog and try to flush the fuel line too, Try to check the pressure of the fuel going in the injectors you might have a problem in the fuel line or it could be a bad coil to if that truck have a coil

[@Amarillobymorning777]

Mark: did you fixed??

[@Leesherwood]

Better get a scanner. If it stalls after being run for ten minutes, that would seem to be coming up to operating temperature....shut it off again for an hour , and it cools down . You may want to see sensors data before firing the parts cannon at it.

[@JonathanLopez-us7yy]

I have this very same problem in my 1997 jeep grand cheerocke. I am curious since you have done this repair has the problem returned?

[@mickeycars]

No

[@davidmccafferty4677]

You can buy refurbished one online that is flashed for you jeep for $ 180.00

[@flyingfatcats517]

Doing this today. Thanks much for video!

[@mickeycars]

No problem let me know if you need more help 😁👍

[@flyingfatcats517]

@@mickeycars Got it done. No bad contacts though on the board nor connector, all rang out fine and looked real good. I cleaned the connectors on the module and the harness with contact cleaner. I also cleaned all my ground points, on the engine, firewall, etc. Run's great, so it was one of the other issues... Thanks.

[@chasiu75]

"Still no Chicken Delight." LOL

[@ericwilkes238]

I have a 2006 4.7 when I back up and start up hill it spits and sputters for about 4 or 5 seconds and then catches up and goes I'll try this thanks.

[@mickeycars]

Eric Wilkes that sounds more like a The injectors being dirty but let me know how it works with your car after you did what I did in the video thanks

[@hugoz7359]

My 96 jeep stalled constantly. My gauges would go crazy. Stalled at a red lights or would suddenly shut off while driving. I changed pcm, ignition coil, tps and even fuel pump but vehicle still stalled. Finally found problem. Ignition Switch. The contacts inside ignition switch wear off with time. Good luck.

[@lovepeace8918]

@Hugo, same here but I had lose wire bundles coming out of the PCM, and another wire we cut and retaped tight, replaced Ignition coil, Ignition switch, crankshaft sensor and cam sensor, cleaned the negative ground contacts. I still need to get dealer part for the wire bundles, auto repair stores don't carry them, so have to wait and hope it does not stall, cut off, or no start again really fucking sucks man, but got to try everything god damn thing till it finally works.

[@custodialcustodian5996]

@@lovepeace8918 did you figure out what fixes it?

[@lovepeace8918]

@@custodialcustodian5996 Yes took it to a jeep shop they ran diagnostics it was an aftermarket alarm that had a bad module that was making the jeep shut off and low voltage drainage making the batteries die. that part got fixed, only thing is now the exhaust seems a little clogged might need to bypass the catalytic converter

[@tiffanyhorne8361]

I have 1995 jeep grand Cherokee v8 4x4 an well i was driving it down the road an all the sudden it stalled out on me an now it want start but all my gauges an stuff still work. dose any body know what it can be

[@mickeycars]

Tiffany Horne hi ,, it could be multiple things , One thing we don't know is if it crank 🤔 I have some ideas what could be I'll give you some of them...!!! 1 ignition coil 2 fuse 3 starter 4 the ignition switch 5 if you have an Alarma system check that too 6 and for last you could have the same problem that I had Hope this help you Please feel free to contact me for more info good luck 👍

[@tiffanyhorne8361]

Kk tha nks got time to do that tomorrow for sure.

[@addrianeanderson5482]

Tiffany Horne probably the crack position sensor

[@dianeelam4531]

I have same issue but I can giggle wires on the pcm unit and make shut off or to get it startedwill doing this help me???

[@mikeh318]

Yes it will help.

[@mickeycars]

Try to check on the wire harness too Just in case you have a false connection or one of the wires is broken

[@joeleroy4694]

im having an issue on my 98 jeep grand Cherokee my first computer that was originally in the car stopped working so I ordered 2 reburished ones and one started the car no problem but caused the vehicle to shift incorrectly and stall and then nothing. The second one I had no crank no start at all and now the third one I got off ebay used starts and immediately on start up stalls. any ideas what the issue could be????

[@mickeycars]

Joe Leroy that’s is because the computer is NOT program for your Jeep , don’t buy computers from eBay or any other source that is not qualified for doing this type of jobs , go online and try to find a company that dose that job, i have one if I can find the web address I’ll get back to you with a new reply

[@USA__2023]

I might have missed it in video. Why did you go back and solder the rest of the connections ? I only did the first three and has been great for over 500 miles.

[@mickeycars]

Clay Polen just to make sure they don’t cause any future problems!

[@kcookish]

Hi Mickey. My 2000 Grand Cherokee is stalling, after a few minutes, it starts. The run time is getting less and less before it acts up. And now, it won't start at all. Before I take on the task of replacing the Crankshaft Positioning Sensor, I am going to tackle the PCM first. Question is, is there a particular solder I need to use ? Thanks, KC

[@mickeycars]

kcookish just regular from like radio shack or best buy

[@hugoz7359]

My 96 jeep stalled constantly. Guages would go crazy, stalled at light or any bounce to vehicle. Changed pcm, ignition coil, tps and nothing worked. Finally found problem. Changed inginition switch. The contacts on the inside wear out after years of use. That took care of all issues.

[@Amarillobymorning777]

@@hugoz7359 : Hugo: Como sigue El Jeep?? Leo tus comments. Y ayuda mucho a hacer logica que esta mal con El Jeep.

[@isaacwhoo9070]

Is it still good

[@joeleroy4694]

if you have another one or any info where to go that would be greatly appreciated because the jeep dealer near me pretty much said that they cant help me and that the part is n/a and no longer made but that sounds ridiculous to me that a dealer cant help????

[@mickeycars]

Joe Leroy sorry to not be able to respond on time it’s been quite a while but I don’t understand the question you were trying to ask if you need anymore help with your jeep please contact me directly

[@jackhartsough3]

going to try it today

[@louiskuan8081]

Your 4.0L Engine is high in idle after your fix. over or close to 1000 RPM.

[@mickeycars]

Louis Kuan it was just below 1000 which is normal for a Jeep

[@Elena-yn2fu]

Hey Mickey did the problem ever come back for you? Did you ever hook up an obD2 reader and see any codes? I have 97 grand Cherokee that stalls when coming to a stop randomly and have trouble starting it sometimes. Had p0351 come up stating ignition coil-was looking into the ignition coil and crank shaft sensor at first but after messing with the wires near the pcm while it was running it died on me. Ganna try soldering, curious to see if it was a lasting solution for you!

[@mickeycars]

Sunkissed Moto VERY SORRY ! To reply so late and yes that fix my problem hope it fix yours ! Please let me know if it did And again VERYYYY SORRYY 😁

[@danieljohnson8437]

Excellent

[@michaelcorleon2000]

What code was it throwing out??? p0353??

[@mickeycars]

Michael Corleon múltiples codes that’s why it was hard to find the problem

[@emersonengletonjr4222]

i havent been able to get a 5v refrence from my tps

[@mickeycars]

If you can’t get the 5v reference you probably need to go deeper, in that case you need to open the other have of the computer, is a little sticky but it can be done just fo it slow , inside you will find more connectors and another circuit board , check on the connections to see if they need to be fix and you can test visually if any component is burn or you can use a tester to test them . Hope this info help , let me know if you need more help 👍

[@larrycain6425]

Great video thanks

[@WHOMEWHOYOU]

Thanks & Great Job & will give it a Try.. Thumbs Up!

[@mickeycars]

You’re welcome I’m glad I can help if you got any other questions please let me know sorry about the delay

[@amindaudzai8048]

oh my god, thanks bro ,

[@mickeycars]

Amin Daudzai your welcome , please let me know if it work or you need more help👍

[@sierrajustin2609]

THANK YOU

[@mickeycars]

Happy to help 😁👍

[@soniascott3458]

2006 jeep grand Cherokee replaced battery an aluternater will not hold a charge. charge it an next day dead. can anyone help lead in the right direction? the mech.that did work didn't get back with me.

[@mickeycars]

Sonia Scott hi there sorry for the delay, the problem is not the battery the problem is on the alternator you have to go to a place if you don’t have the right tool to test the alternator I will recommend you to go to advance auto parts or AutoZone they will test the alternator for you most likely the regulator it’s burn on the alternator. If the alternator checked OK , you need to make sure that the type of battery you bought is the right one for your car. If both the alternator and the battery checked OK I will recommend you to take the battery to a different car similar to yours and tested there or get your battery and get it tested at Advance auto parts or AutoZone. I hope this would help you to resolve the problem with your car good luck

[@jesterfrost1369]

My jeep has a short in the drivers side door that would drain my battery overnight...I never found it so I installed a master kill switch to the battery

[@alvarom.huerta1589]

hey micke como estas? ya no tuve chance de mandarte reply, cuando puedas dime como para arreglar mi computadora gracias...

[@mickeycars]

alvaro m.huerta Álvaro disculpa que no pude contestarte este mensaje lo que pasa es que no me avisó que tenía un nuevo mensaje espero que hayas podido resolver tu problema con tu carro si no contáctame lo más rápido que puedas buena suerte gracias

[@dcarden3031]

Thanks

[@alvarom.huerta1589]

hi mickey i have the same problem with my jeep is a 96 grand cherokkee and i will like to contact you so you can help me to fix it or send me with some body i dont know what to do

[@mickeycars]

alvaro m.huerta ok Alvaro first do you speak Spanish? If you do I can Guide you through the whole process is very easy

[@alvarom.huerta1589]

si si hablo espanol creo que es lo mejor que hablo ajajaja ok si me gustaria que me ayudaras ya que es la segunda computadora que compro para la camioneta y estan muy caras prefiero arreglarlas

[@mickeycars]

alvaro m.huerta ok pero dime como hacemos para comunicarnos mejor

[@alvarom.huerta1589]

ok

[@alvarom.huerta1589]

como te mando mi numero pero privado

[@Carlos202035]

... I have a 96 jeep grand Cherokee ... it shuts down after an hour of running ... in the day would run for less and shuts down ... I'm beginning to think of the same situation. .. I'll try

[@mickeycars]

Carlos202035 it could be the computer or it could be ignition coil , sometime when they overhead they stop working, please let me know if that help and if is something else and you fix it please share !!

[@Carlos202035]

mickeycars ... thanks.. makes sense to me ... I'll try that first ...

[@mickeycars]

Carlos202035 no problem ! Let me know if you need more help and please let me know if that fix your problem

[@hugoz7359]

Carlos202035 change your ignition coil. Contacts on the inside tend to wear off due to excessive use causing vehicle to stall or shut off completly.

[@ntgreat5]

I got a 2000 grand cherokee v8. Stalls roughs idle takes forever to start sometimes keeps missing takes forever to accelerate have to feather the gas to get up to speed.

[@curtisdowner-harp3887]

Nate Ellis, did you figure it out? Mine does this too. And when I’m going up a hill, I will have full power.. then out of nowhere it starts misfiring. And all power is lost. If I leave it idle, it will misfire after a while then shut off unless I press the gas. If the Jeep is warm, it will not start back up until either it cools down a little? Or fuel pressure goes down? I’m not sure.

[@jesterfrost1369]

@@curtisdowner-harp3887 we had a 99 grand Cherokee do that....it was a GPS with a dead spot in it switched it out and no more ISSUES

[@tsan3796]

Never buy a used computer off ebay or a yard Simply because the Vin number is flashed into the PCM so if you buy a used pcm with a different Vin number programmed on it’s going to have funky issue there are companies that sell refurbished re-flashed PCM’s off your cars vin there one company in North Carolina is ideal

[@angelf9800]

Can I just buy a brand new computer to fix my issue I am having with this jeeps

[@mickeycars]

Yes you can do that , there is a lot of websites they can do that for you and all you have to do is give them your Vin number and they’ll program it for you and all you have to do is connected and you all set

[@extremedrivetrain6900]

it your self new spark plug..

[@alvarom.huerta1589]

hey micke ya te mande el numero

[@alvarom.huerta1589]

ya te mande el numero micke