Hate it

Covington, KY

#42 Aug 14, 2010
I have a 97 that kept stalling on me. Replaced the MAP sensor and that didnt work. What did work a little was spraying carb cleaner down the throttle body. It hasnt stalled since then but it runs like crap. It has no power what so ever. 0 to 60 in three minutes. Probably just need to replace the computer and get it over with.
Bryan

Atlanta, GA

#43 Aug 17, 2010
1998 Jeep Grand Cherokee Laredo 4.0 A/T. Ok add me to the list. She started out occasionally stalling. Now if you are lucky it will start. Changed out MAP sensor and waiting on PCM. Tried the "backing out the screw" PMC trick. No dice. I am one of the fortunate ones who has NEVER had one worry with my JGC. She has a bunch of miles on her and would love to be able to keep on driving it. Anyways, I will update after PCM swap.
Hate it

Covington, KY

#44 Aug 17, 2010
Just found this out. Jeep recalled like 1.5 million Jeeps back in the day. Well like 300k and some other ones. Just google jeep recall emissions and you'll find out a lot about it. What was wrong with it was the catalytic converter and the sensor that would tell you that your converter messed up. That way if their crap broke on you then the check engine light wouldnt come on and you would have to replace a lot of stuff.

If you came in to get everything fixed then they would charge you another 2-300 bucks to replace the O2 sensor on it while they changed the rest of the stuff for free. Its BS. Most people didnt get it fixed because the converter hadnt messed up yet and now us people that bought one used get to deal with it.

What I did was replace the converter and seafoam the crap out of it. The seafoam cleans it out real good. Google seafoam and it'll tell you how to use it.

Chrysler has really screwed us over on this one. You might have something else wrong with your but I bet thats the reason it messed up. It has a clogged converter on it and its so junked full of carbon that it wont hardly run. The seafoam is like 8 bucks but use it and that should help it out a lot. You can smack the sht out of the converter with a hammer and if it rattles like a can full of marbles then yeah, its screwed.

If that fixes it then make sure you send Chrysler an email telling them that they suck. Good luck.
Heather

United States

#45 Sep 3, 2010
I've had the stalling problem with my 98 jeep before. We changed the gas pump and did a tune up, fixing the issue for about 8 months. We just tried the screw tip and it stopped the stalling for now,however if it starts up again I will be getting rid of my beloved jeep and looking for a new vehicle!!!!! Thank all of you for the advice you have posted!
Roadguy

Athens, GA

#46 Sep 12, 2010
Try replacing the Automatic shutdown relay(ASD) under the hood on the left in the fuce bo. Look at the diagram on the inside of the cover to locate it. You have to go to the dealership to get it. Easy to replace. This has fixed the problem for some. At least it's a DIY and cheapper.
Ed F wrote:
My 98 JGC is starting with this problem. My wife drives it and it kills on her several times. She can't tell me if it happens on idle or at crusing speed, but after driving it for 3 days now I think this happens at idle and just getting started moving, like pulling into traffic. I am driving it this week and it killed on me once. I changed plugs, wires, distributor cap and rotor. The old plugs looked great when I took them out. I also added Lucas gas treatment in the tank,(about 6 oz. to half tank of gas). But from what I read on the forums, I have to start at the ECM screws and connectors, and work my way through the sensors. I can come to a stop and watch the tach go to zero and then jump back up to just under 1k rpm. It's like the engine dies and then restarts itself. I also had the radiator fixed last month and when I reinstalled it I changed the thermostat, and all hoses. I went with a 180 degree thermostat, and now I wonder if this is adding to my problems. I read somewhere that the ECM is looking for the 195 degree reading for proper operation.
veronica

Pagosa Springs, CO

#47 Sep 25, 2010
my jeep is s 98 cherokee and was running great until my o2 sensors went bad and i had my belt changed now my belt squeels when i start the engine for about 5 seconds and as of late my oil pressure guage is slow to move up so my check guages light comes on for about 3 seconds. also it will tell me i'm overheating when i am not any suggestions? i do have 197468 miles on it and usually runs like a top. sm tired of putting money into it hwen the issue is not getting fixed. also my airbag light is on and cruise control will not work.

Since: May 09

Los Angeles, CA

#48 Sep 26, 2010
veronica wrote:
my jeep is s 98 cherokee and was running great until my o2 sensors went bad and i had my belt changed now my belt squeels when i start the engine for about 5 seconds and as of late my oil pressure guage is slow to move up so my check guages light comes on for about 3 seconds. also it will tell me i'm overheating when i am not any suggestions? i do have 197468 miles on it and usually runs like a top. sm tired of putting money into it hwen the issue is not getting fixed. also my airbag light is on and cruise control will not work.
The belt might not be tight enough, recheck for looseness, try starting vehicle with A/C off, does it still squeal? Oil pressure gauge slow? Hmm scary one...try an oil change first. I got a Jeep with 275,000 miles and my airbag light is on too and my cruise control won't work unless I press the "on" button hard enough and just right.
jeep

Corbin, KY

#49 Sep 28, 2010
jeep wrote:
I had a 2003 laredo. 2 Jeep dealers kept it for 8 months and could not fix the stalling. Finally a local mechanic fixed it. The battery I put in it last summer was defective and was not pulling enough amps so I was getting the code P0107. Replaced battery and it is fine now I have spent 100s at the dealers and they could not fix it!!
Well it is stalling again!
98gcherokee

Memphis, TN

#50 Oct 24, 2010
KSH wrote:
I have read several different articles about Jeeps in other years and models having stalling issues and seem to be right in the middle with everyone else. Seems like this Jeep is becoming a money pit. Have had the vehicle coded twice now and replaced the ignition coil twice along with a fuel pump and still no fix. Have read about the torx bolts on the PCM and will try that tomorrow, but like all of you out there with this problem, mechanics are sucking us dry!!! HELP!!! Is there anyone with a real solution? It seems there should be some sort of recall if this is happening to a lot of Jeep ownwers. Bought this Jeep from a used car dealer and had to have the transmission replaced after only having it 3 weeks. Could it be possible that the crankshaft sensor wire got knicked or damaged and causing a short?
Has anyone found a real solution to the stalling problems with the 1998 Jeep Grand Cherokees? I have been having the same problem with my vehicle for about two months. I am the original owner of this truck. I have taken the truck to two differnt repair shops and at both places, they have replaced parts (spark plugs, spark plug wires, coil, distributor, etc), but I'm still having the same problem. I read an article on the web that stated that O2 sensors can go bad, but a computer diagnostic will not detect it. If the problem with my truck is a bad O2 sensor, which of the sensors will be the most likely to be bad?
Don -- Peoria IL

Chicago, IL

#51 Oct 25, 2010
The stalling problem will be fixed w/the replacement of the PCM. It's an easy do-it-yourself job. Find one online and order it. Make sure you order from somewhere that offers a lifetime replacement though, as the ones you get are just rebuilt and can potentially fail just as your original did. My stalling stopped immediately upon replacement. I have, however, gotten mixed results on the replacements -- one lasted 6 weeks, the second 2 weeks, and the current one has been in and functioning perfectly for 3 months and counting. The stalling issue being discussed here most often can be fixed for a few hundred dollars if you do it yourself -- nothing else is needed. Please save yourself the headaches and uncertainties by trying this. You will thank me later. :-)
S Allen Norfolk VA

Durham, NC

#52 Nov 2, 2010
I have a 2004 Jeep Grand Cherokee and I had it for 5 years now. I am having this stalling problem and I replaced all of the sensors, replaced the ignition switch under the dashboard, and the fuel tank. Its still stalling. I read on different blogs about shorten the screws connected to the PCM. My mechanic tried that but still giving us the same problem. My mechanic was clueless with this truck so he had a mechanic from Chrysler come over to take a look at it. Come to find out the Chrysler mechanic cut the wiring harness and stated some of the wires are burnt out which will cause the stalling. He wiggle the wiring harness once and the truck cut off and then wiggle it again and it started up. The dealer charges $700 for this part and this is the my last option. I hope it works. Call Chrysler to see if these trucks had any recalls on it and they stated NO!!. Everyone all over the world is having the same issue with these trucks and Chrysler needs to do something about it. I think everyone needs to sign a petition to get Chrysler to do something about this issue.
Funny

Manchester, KY

#53 Nov 4, 2010
Mine ended up being a coil pack number 2 or something like that. Thats after I replaced my PCU and all the other crap. I think that there is just a lot of different things that goes wrong with the POS and its different for everyone. I hate my Jeep.
Don -- Peoria IL

Chicago, IL

#54 Nov 4, 2010
Let me add the following which I should have included in my post above. The Jeep ran just as it should the moment the PCM was replaced. This confirmed to me the problem was in the PCM...
Jeep

Corbin, KY

#55 Nov 4, 2010
Funny wrote:
Mine ended up being a coil pack number 2 or something like that. Thats after I replaced my PCU and all the other crap. I think that there is just a lot of different things that goes wrong with the POS and its different for everyone. I hate my Jeep.
I gave up on mine and traded it last week. 5 mechanics and 2 dealers. The delaer in somerset kept it for 5 months. I will never buy a jeep product again. 60k miles and it died basically.
Chris

Chicago, IL

#56 Nov 4, 2010
I have had the same problem. Someone told me to unplug the car battery (or the positive wire) and this serves to reboot the computer (PCM?). So far it hasn't stalled since I've done that. It has only been 1 day so I am still holding my breath.
Stelios wrote:
I'm an Automobile Technician and owner of a 1997 Jeep Grand Cherokee...the problem these vehicles have is the PCMs. My advice is to have a new one installed by a reputable facility. Mine had codes relating to the primary circuit of the coil, and it kept stalling and backfiring. Besides blowing up two mufflers and replacing the coil, crank sensor and trying the so-called PCM fastener "fix"...I went thru 4 (!) aftermarket rebuilt or reconditioned PCMs till I got a good one...the other lasted from 5 seconds to one month...get a new one and have a dealer perform the flashing of the PCM...then replace your spark plugs, ignition wires and distributor cap and rotor. This will fix it for another 10 years. Mine has a 4.0 engine with the original transmission with 270k miles and still running strong. What happens is that people ignore basic maintenance and due to excessive wear, there is too much electrical resistance in the coil wire and ignition so power backfeeds into the PCM and the heat burns up the circuitry inside.
Stephen

United States

#57 Nov 6, 2010
I'm in the boat with everyone it seems. Mine is a 96 with 156k. Been stalling off and on for past few months and gradually getting worse. Now it stalls every time I take it out. This morning it would not even start without me holding pressure on the wire conectors going into the PCM. I've replaced crankshaft and camshaft sensors, coil, and battery. Called the dealer and they still will replace the cat on recall but nothing else. The say they flash the PCM and i can say I disconnected the rear O2 sensor and the check engine light came on. The old cat was completly gutted and no light. Anyway jeep still stalls. The dealer wants $92 to check the PCM and $520 to replace. Napa wants $285 for one. Both come with a one year warranty. Haven't decided what I'll do yet. Tired of throwning money in this bottomless pit. Will post up and say if it ever runs 3 weeks straigt. After that I'll sell it asap.

Since: May 09

Los Angeles, CA

#58 Nov 6, 2010
Stephen wrote:
I'm in the boat with everyone it seems. Mine is a 96 with 156k. Been stalling off and on for past few months and gradually getting worse. Now it stalls every time I take it out. This morning it would not even start without me holding pressure on the wire conectors going into the PCM. I've replaced crankshaft and camshaft sensors, coil, and battery. Called the dealer and they still will replace the cat on recall but nothing else. The say they flash the PCM and i can say I disconnected the rear O2 sensor and the check engine light came on. The old cat was completly gutted and no light. Anyway jeep still stalls. The dealer wants $92 to check the PCM and $520 to replace. Napa wants $285 for one. Both come with a one year warranty. Haven't decided what I'll do yet. Tired of throwning money in this bottomless pit. Will post up and say if it ever runs 3 weeks straigt. After that I'll sell it asap.
Get the $199.99 PCM preflashed from AutoZone with 12 month warranty. I guarantee your problems will be over...check and replace your plugs and ignition wires too. What are your codes?

Since: May 09

Los Angeles, CA

#59 Nov 6, 2010
Chris wrote:
I have had the same problem. Someone told me to unplug the car battery (or the positive wire) and this serves to reboot the computer (PCM?). So far it hasn't stalled since I've done that. It has only been 1 day so I am still holding my breath.
<quoted text>
Always disconnect negative batt cables (1st), not positive. Disconnecting batt for 10mins is like erasing codes, but then the PCM needs to get into its "readiness"...it will stall again because the PCM is the bad part...what were your codes?
MAMMON

Covington, KY

#60 Nov 7, 2010
Stephen wrote:
I'm in the boat with everyone it seems. Mine is a 96 with 156k. Been stalling off and on for past few months and gradually getting worse. Now it stalls every time I take it out. This morning it would not even start without me holding pressure on the wire conectors going into the PCM. I've replaced crankshaft and camshaft sensors, coil, and battery. Called the dealer and they still will replace the cat on recall but nothing else. The say they flash the PCM and i can say I disconnected the rear O2 sensor and the check engine light came on. The old cat was completly gutted and no light. Anyway jeep still stalls. The dealer wants $92 to check the PCM and $520 to replace. Napa wants $285 for one. Both come with a one year warranty. Haven't decided what I'll do yet. Tired of throwning money in this bottomless pit. Will post up and say if it ever runs 3 weeks straigt. After that I'll sell it asap.
The PCM is only a couple of bolts. You have to take the water reservoir off but that is also easy. Its better than paying someone a few hundred bucks to do it. If you have full coverage then I recommend taking the damn thing to a field and burning the POS. Dance around it naked then call it in stolen. Good times, good times.
stephen

United States

#61 Nov 13, 2010
Stelios wrote:
<quoted text>Get the $199.99 PCM preflashed from AutoZone with 12 month warranty. I guarantee your problems will be over...check and replace your plugs and ignition wires too. What are your codes?
I found a local mechanic who spoke highly of the jeep still and seems very confident he can fix the problem wether it is a wiring pin connector or the pcm and at only $60 per hour. Thats 100% more confident then the dealership was. Replacing the PCM is not a big deal as I have had this one out of the vehicle in my hand inspecting it and praying... If I could get the wiring connector appart I'd check the pins as wiggling the wiring always makes the jeep run or stall and depending on the tempature, humidity, location of the moon, and I'm sure some other planets then the direction of the required wiggle changes. Thats the only reason I am leaning on the wiring harness connectors at the moment other than price. I'm plenty mechanically capable of fixing the problem, just need a little more direction on which way to go.

Other than that there are no codes or anyhthing. I replaced the spark plugs pretty quick after getting the jeep. It seemed like a tune up would do it good and it did till the stalling started. The wires really look good but I could replace them to if you really think I should.

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