You are here: Forums SUVs GMC Jimmy Jimmy Idle and Stall Problems

Jimmy Idle and Stall Problems

14 messages,  Last post on Dec 10, 2008 at 1:14 PM

You are in the GMC Jimmy Forum. Your Hosts are steve_ & tidester

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

Messages Page 1 of 2 1 2 Prev Next Last

Go To Msg # Search This Discussion

#1 of 14 '96 Jimmy rough Idle by gtrman1 Mar 03, 2007 (7:59 pm)
I took my 96 Jimmy 108K mi, out rockhunting today. It was running fine, but I had to use 4lo to get thru the mud. After I got on the road, I ran it up to about 35 mph to throw the mud off the tires. ( We're talking thick, adobe mud here.) Ran rough all the way home, and now it really sputters and misses when idling. gets much worse in gear. Replies to this message: repairdog (Mar 04, 2007 1:38 am)
#2 of 14 Re: '96 Jimmy rough Idle [gtrman1] by repairdog Mar 04, 2007 (1:38 am)
Replying to: gtrman1 (Mar 03, 2007 7:59 pm) See if you got mud in the crank position sensor down under the front of the engine (see the wires and connector or on the plug wires so they are arching. The front inner fender mud flaps are usually worn out by now so could have thrown mud anywhere so have to look at the cap/rotor also. Then when do you last change the fuel filter/air filters (did you suck crap in the front air box).
#4 of 14 found it by gtrman1 Mar 04, 2007 (9:35 am)
Finally got an idiot light code. Fouled the number one spark plug. new plugs, runs fine. Thank you, I did look at that crank sensor, it seems fine, no mud
#6 of 14 1995 Jimmy rough idle, stall at stop by maryg3 Mar 12, 2007 (7:19 am)
HELLLP I have a '95 GMC Jimmy, was having rough running issues, replaced plugs,wires, cap, rotor, fuel pump, fuel filter, spider cpi, checked map sensor, cleaned but did not replace egr valve, checked fuel pressure. Mechanic is not having luck, I don't want to take from shop until it is running correctly, I am left to diagnose the dang thing....small town deal can anyone offer further ideas. Starts right up, just idles rough as a cobb! Thanks, M Replies to this message: repairdog (Mar 12, 2007 12:43 pm)
#7 of 14 Re: 1995 Jimmy rough idle, stall at stop [maryg3] by repairdog Mar 12, 2007 (12:43 pm)
Replying to: maryg3 (Mar 12, 2007 7:19 am) How about the coil and ign module - check them. Then you have a crank sensor (if starts doubt this one) and cam sensor - need scan tool to look at - any codes. Vac leaks on rotted out lines drivers side - check all. Timing off?
#8 of 14 1999 GMC Jimmy High Temperature Idle by bryceb04 May 20, 2007 (4:08 pm)
I was sitting in traffic for a short time (maybe 2-3 minutes) when my "check guages" light came on. My temp was hovering near the high end (don't remember the temp) and it was maybe 70 degrees outside. I figured I'd check coolant when I got home as it had been a while and I was only a mile away. Anyway as I got going again, the light went off and my temp got down to the normal spot (around 210). When I sat in the driveway, I let it idle again for a couple minutes and sure enough, the temp started its way up the scale again. Gave it some gas and it went down eventually after I had it around 2000 rpm for a while. Checked the fluid level and it was full. I will likely take it to the shop soon, but does anyone know what it might be causing it? Something easy to check or fix?   Bryce Replies to this message: repairdog (May 21, 2007 2:27 am)
#9 of 14 Re: 1999 GMC Jimmy High Temperature Idle [bryceb04] by repairdog May 21, 2007 (2:27 am)
Replying to: bryceb04 (May 20, 2007 4:08 pm) Fan clutch is going so no air flow, cap not holding pressure, water pump going, thermostat could be sticking, or the whole system crapped up - fan and cap get my vote as only when sitting. I would flush it out and add a new thermostst and cap and see if OK. Then on to the fan clutch. WP normally leak at seal holes if bad.
#10 of 14 Tune Up Issue by taffie Sep 24, 2007 (7:19 am)
I have a 1995 Jimmy that was running beautiful until I recently had a complete tune up. The mechanic who tuned it up seems to have done something wrong. My truck now runs so rough at take off and idle. Can someone please tell me what do you think he done wrong. I've taken it back to him several times and I believe he has done nothing to fix the problem and now he's not answering my calls. I was told that the firing order is probably not correct. If this is correct what is the correct firing order.

Messages Page 1 of 2 1 2 Prev Next Last

Go To Msg # Search This Discussion

You are here: Forums SUVs GMC Jimmy Jimmy Idle and Stall Problems