number 4 miss fire i already replace all the fuel injector and did a full tune up on the van and its still say miss fire on number 4 i need help
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1999 Chevrolet Express 1500 Question: number 4 missed fire
Answer #1backyard tech February 04, 2011, 23:47Master
I'm assuming you replaced the fuel injector sypder. When you say a full tuneup, you mean plugs and what.
Replyjasper22, February 05, 2011, 09:16Rookie
plugs wire cap button fuel filter that what i done for a tune up
ReplyVisitor, February 05, 2011, 11:02
Based on what you have done a compression check on the effected cylinder would be the next step.
Replyjasper22, February 05, 2011, 11:20Rookie
done 120 psi whats next the brain
Replybackyard tech, February 09, 2011, 21:04Master
Do you have more money than brains? Contact me at firstname.lastname@example.org