1999 Chevrolet Express 1500 Q&A

1999 Chevrolet Express 1500 Question: number 4 missed fire

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 -
Answer 1
I'm assuming you replaced the fuel injector sypder. When you say a full tuneup, you mean plugs and what. -
Comment 1
plugs wire cap button fuel filter that what i done for a tune up -
Comment 2
Based on what you have done a compression check on the effected cylinder would be the next step. -
Comment 3
done 120 psi whats next the brain -
Comment 4
Do you have more money than brains? Contact me at autoknowhow@gmail.com -