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2002 Chevrolet Avalanche 2500 Question: Engine misses

 

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Visitor, Reynolds, GA, June 20, 2010, 10:07

My engine misses when it idle and when I drive it.So I tried changing the spark plus ,spark plug wires and the number 7 ignition coil still give me reading on number 7 cylinder when i check it with the diagnostic tool so I swap the coil 1 around with 7 and still get a reading it number 7

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  • Answer #1

    Visitor, December 21, 2010, 19:50

    check injector, or maybe poss wiring problem to injector or coil or even bad computer, or poss bad cyl, also do compression check

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