Last post on Dec 10, 2008 at 1:14 PM
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GMC Jimmy, Engine, SUV
#6 of 14 1995 Jimmy rough idle, stall at stop
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
#7 of 14 Re: 1995 Jimmy rough idle, stall at stop [maryg3]
Mar 12, 2007 (12:43 pm)
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
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?
#9 of 14 Re: 1999 GMC Jimmy High Temperature Idle [bryceb04]
May 21, 2007 (2:27 am)
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
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.
#11 of 14 97 jimmy problems
Jul 09, 2008 (12:13 pm)
well igot 97 gmc jimmy got a complete tune up distributor rotor butten plugs plug wires and oil change then it would every onge in a while statrted 2 die when i stoped then i went sumwhere and it got bad sputtering cutting out and dien while driving but when it died it would crank back ted it up no problem after that it ran goodfor 2 weeks or 3 then started it again last night and today did the same thing but now it died and wont crank at all please sumone help me out here thanks ed.
#13 of 14 RPM'S FLUCTUATE WHILE IDLING
Sep 17, 2008 (9:01 am)
what would be causing my rpm's to go up & down while my 2001 gmc jimmy is just idiling? there's no problem while i'm moving- just when i'm idiling. it's got a 4.3 v-6 vortec engine in it.
#14 of 14 Re: RPM'S FLUCTUATE WHILE IDLING [unicorn747]
Dec 10, 2008 (1:14 pm)
My 99 Jimmy does the same thing only when my heat is on. A few years ago I was out of state and my alternator took a crap, had it replaced at a dealership, and that's when it started. If you find out why e-mail me at nljewell1104verizon.net. Thanks.