Questions & Answers for: 2003 gmc envoy misfire

my 2005 gmc envoy is getting a p0306 cylinder 6 misfire detected. what can i do to fix it? Change plugs, wires, and cap N rotor if it has distributor or coil packs if it is electronic distribution

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2003 gmc envoy engine light flashing, car shaky when i start it or come to a stop and little hesitant when driving - took it to advance auto machine said cylinder 3 misfire what cause this - i have ...

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have 03 envoy, service engine soon light comes on, kicks it out of cruise. had checked #2 cyl. misfiring It is a coil,a coil boot,or a spark plug causing the problem,of course,there is the posibility ...

Question about 2003 Envoy

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misfiring The service light is blinking. The truck is misfiring Yes the blinking light indicates a misfire is occuring. You will need to have it "scanned" the code(s) will indicate which cylinder(s) ...

Question about 2003 Envoy Xl

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...2003 envoy shakes and vibrates when I am stopped or it at an idle. It seems to be missing and has a decrease in power when driving. This sounds like a mifire and you may have a bad coil, have the ...

2003 envoy smells like fumes and idles rough My 2003 Envoy XL is idling rough. Once I start going everything is smooth. The check engine light is on, I took to auto zone and it said multiple misfires.

...2003 GMC ENVOY CODE306 MISFIRE ON 6 REPLACE SPARK PLUG AND COIL PROBLEMS STILL EXIST AND OTHER SOLUTION THAT MIGHTN SOLVE MY PROBLEM lookn at the inside of the boot going to the plug to see if there ...

...2003 GMC in drive it hesitiate. But when I put it in neutral it calms down When a vehicle is in neutral there is no load the moment you put it in gear then there is a load,If you hesitate in gear and ...

Question about 2003 Envoy

1 Answer

PO016, PO300, PO420, PO442 codes your engine is misfiring according to your codes ...4 codes 4 problems P0300 - Random Cylinder Misfire DetectedP0301 - Cylinder 1 Misfire DetectedP0302 - P0312 ...

2003 envoy envoy was missing put it on computer it said random misfire the man said needs spark plugs put new ones ia now no spark and it will not start 2003 envoy xl 4.2 Coil packs was the problem in

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