Misfire

Asked by Steven_perez1 Apr 24, 2018 at 10:40 PM about the 2004 GMC Sierra 1500 4 Dr SLT Extended Cab LB

Question type: General

Hello i have a 2004 gmc sierra 4.8 and its running on rich
fuel and it does the check engine light on and i did check
it but just says i have a misfire thats it. I already change
spark plugs and wires, injectors and coils because thats
what i know that can make a misfire and i did all that and
still runing the same and white smoke comes out of my
exhust thats smells like gas . So what else can it be?

1 Answer
135

midnight32 answered 6 years ago

your gasket could be shot and is letting coolant get into the gas but that really unlikely but if it is that will be a hard thing to replace

Mark helpful

Your Answer:

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