Questions & Answers for: GMC Jimmy runs rough

Question about 2001 Jimmy

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2001 Jimmy will not start I have a 2001 Jimmy that started running rough out of the blue. I thought maybe it had water in the gas tank and put some heet in it as well as some fuel injector cleaner. It

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Question about 1995 Jimmy

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...runs rough after starting.I've been tolds it's the spider injector under the manifold.Any idea's as to why it idle's so rough? w/o much more info it sounds like it needs a good tune up plugs wires ...

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2000 gmc jimmy was running rough i was told it was because it had a pluged cat. i had it by passed ran sea foam through the tank to de-carbonize the engine i also changed the plugs, cap, rotor, wires,

runs very rough! Added a 1/4 inch spacer below the injectors for better gas milage. It ran great for 2 days then on the third day, loss power and clicking noise started. It stalled first, then when it

Question about 1986 Jimmy

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Rough Idle on 1986 GMC Jimmy. Runs fun at speed and runs fine in park / neutral but idles rough at stop signs. Plugs are new, air filter is new, fuel filter is new. change your some sensors that can ...

Heater isn't working (blowing cold air)....and it's overheating as well. Tried flushing heater core but that didn't help. Truck is running rough too. Any ideas as to what the problem might be? check ...

...rough idle. What could be causing this problem? The wire harness to the fuel pump sending unit may be going bad which is common to happen. The harness is around $15.00 and it runs from the frame to ...

...runs rough, stop truck, open hood, and tap on egr valve base( where it bolts to engine) if rough running clears up, there's your problem. Egr valve is located on front of engine just to the rt of ...

runs very rough and idles at 950 rpm, is this fast? Just purchased and don't know the history. started right up but runs at a high rpm, and runs rough. Sounds like a vacuum hose leak. Look ...

...will then start right back up with rough idel , go and drive some thing??? when in park and ran at 1500 RPM smooth out runs good. i have seen many strange things happen with the distrib cabs on ...

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