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GMC Jimmy Starting and Stalling Problems

230 messages,  Last post on Sep 15, 2009 at 11:40 AM

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What is this discussion about? GMC Jimmy, Engine, SUV

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#221 of 230 Re: 95 jimmy problems [klunker95] by jonnyring Aug 27, 2009 (2:04 pm)
Replying to: klunker95 (Aug 27, 2009 5:39 am) "acts as if it is electrical when motor warms up."   Temp. sensor/sender to ECU/Brain may be bad (mine did exact thing)...not sensor/sender to temp. light/gauge.
#222 of 230 A fix to a lot of these. by bren24 Aug 30, 2009 (7:09 am)
I had a lot of these issues with my 98 jimmy. Sometimes i could sit in the drive for 10min before it would start and others it would randomly stall in the middle of intersections. It would start to spit and sputter after about 25-30 min of driving. And almost every time i went up a hill, it would almost die leaving me in the middle of it. I got the codes pulled and the computer gave codes for four or five o2 sensors, several fuel issues, and air intake. We looked at the price to fix all of these and it came up to about $650. Not going to happen. so i looked online for what could cause all of these problems. Here is how i fixed it. I went to autozone and bought CRC mass air flow sensor cleaner and gumout air intake and throttle body cleaner. Went out into the parking lot. pulled the mass air flow out. didn't look very dirty but i gave it a good spray, let it dry, and sprayed it again. Then I took the gumout and sprayed the whole throttle body. inside and out. got all of the black residue off the inside. put it back together and it fired first try. had the codes pulled again. not a single problem. The jimmy has ran fine since. took it all the way to Lake Erie and didn't have a single problem with it the whole time. Thats a 12 hour drive for me. Its ran perfect ever since. The total cost to fix it. $12.85. I suggest most of you try it. And i hope it helps. Replies to this message: tidester (Aug 30, 2009 9:52 am)
#223 of 230 Re: A fix to a lot of these. [bren24] by tidester HOST Aug 30, 2009 (9:52 am)
Replying to: bren24 (Aug 30, 2009 7:09 am) Now that's the kind of solution I really like - effective and cheap! Thanks.   tidester, host SUVs and Smart Shopper
#224 of 230 1996 Jimmy randomly dies by bassemir Aug 30, 2009 (11:21 am)
Have a 1996 Jimmy that would randomly die while driving. After dieing it would start right back up. It only seemed to happen when my daughter drove the car.   Turned out to be the ignition switch. Since replaced the car has not died.
#225 of 230 Re: 97 GMC Jimmy issues [jonnyring] by homefixit Sep 01, 2009 (7:21 am)
Replying to: jonnyring (Aug 26, 2009 1:29 pm) Thanks for the help. I did end up dropping the tank to replace his very hard to find o-ring gasket around the pump. The person that had installed his pump did so with a hammer he said, I put a little grease around the top of the tank edge as there was a little rust and was able to get in by hand with a little effort. (NO HAMMER) That is why his gasket was cut like sliced and he couldn't fill the tank. He can now fill the tank without worry as to spilling fuel on the ground. The gasket was around $9+tax. Then we found a shop that advised us that what you said is correct there is a fuel pump relay that is mounted in the glove box in this year truck. It seems that when this relay goes bad and gets hot it tells the pump not too run as it thinks the pump is too hot to run. Actually there are three there in which we replaced the right two at $10+tax each and he is now running perfectly without startup issues. The book he bought barley speaks of it unless you really dig into the paragraphs and there is one picture and you wouldn't know it is in the glove box unless you really look for it as it is covered with a plastic cover. I hope this can help others.
#226 of 230 Re: 97 GMC Jimmy issues [jonnyring] by homefixit Sep 03, 2009 (1:38 pm)
Replying to: jonnyring (Aug 26, 2009 1:29 pm) Where do you find this temp sensor? because he got it home and it started again after two days of working just fine. Replies to this message: jonnyring (Sep 04, 2009 4:08 am) homefixit (Sep 04, 2009 9:58 am)
#227 of 230 Re: 97 GMC Jimmy issues [homefixit] by jonnyring Sep 04, 2009 (4:08 am)
Replying to: homefixit (Sep 03, 2009 1:38 pm) "Where do you find this temp sensor? "   On a '97? I don't know. There are 2 water temp. sensors. 1)On my '91 V6 4.3L (throttle-body injection), the gauge sender/sensor was on the pass. side of the engine right below the forward 2 spark plugs. 2)The ECU/Brain sensor (the one you may wanna replace) was located front and center on top of the engine next to the goose neck (where the upper radiator hose enters the engine). Now I just looked on my wife's 2000 (4.3L with fuel injectors, not T-body injection)...and it could be right next to the goose neck as well, however, if it is, it is HUGE.....much larger than the older 4.3L. Replies to this message: homefixit (Sep 04, 2009 9:58 am)
#228 of 230 Re: 97 GMC Jimmy issues [jonnyring] by homefixit Sep 04, 2009 (9:58 am)
Replying to: jonnyring (Sep 04, 2009 4:08 am) Thanks for the info he looked at it and said it is the size of a small soda can. It is a big possibility that this is it and he will be checking it soon. The truck overheated once he said but not since then as he had that fixed by someone. Thanks again i will update when we get it figured out.
#230 of 230 2000 GMC Jimmy stalls and now wont start by nebulis Sep 15, 2009 (11:40 am)
I was driving home yesterday and stopped at a red light. My Jimmy stalled and I had to restart it. When I restarted it there was no power when i hit the gas and it stalled and died again. Now it wont start at all. Anyone know what could possibly be wrong?

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