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1999 Chevrolet Express 1500 Question: number 4 missed fire

 

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jasper22, 4.3L V6, Stone Mountain, GA, February 04, 2011, 21:51
 Rookie

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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  • Answer #1

    backyard tech February 04, 2011, 23:47
     Master

    I'm assuming you replaced the fuel injector sypder. When you say a full tuneup, you mean plugs and what.

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    jasper22, February 05, 2011, 09:16
     Rookie

    plugs wire cap button fuel filter that what i done for a tune up

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    Visitor, February 05, 2011, 11:02

    Based on what you have done a compression check on the effected cylinder would be the next step.

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    jasper22, February 05, 2011, 11:20
     Rookie

    done 120 psi whats next the brain

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    backyard tech, February 09, 2011, 21:04
     Master

    Do you have more money than brains? Contact me at autoknowhow@gmail.com

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