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2001 GMC Jimmy Diamond Edition 4dr

2001 GMC Jimmy
Trim Info:
Rear Wheel Drive, 4 Door
17 mpg city / 22 mpg hwy
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June 29, 2011, 6:39 am

Josh J

Question: Why does my GMC jimmy drive rough?

I have a 1999 GMC Jimmy SLE 4dr 4x4. Recently it has started to drive rough and threw an engine code that said misfire in cylinder 2. I have replaced plugs, wires, cap and rotor and MAF sensor, with no change. I ran a can of sea foam thinking i might have a stuck valve but again no change. also, my coolant is disapearing im not sure if there is a connection but i replaced the radiator cap and it still goes down about a quart every couple weeks. there are no leaks or smoke or anything. I have a friend who does a bit about cars and he suggested something about a spider injector. any ideas would be great. thank you!


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