96 GMC backfire at even throttle - The 1947 - Present Chevrolet & GMC Truck Message Board Network



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96 GMC backfire at even throttle

03-25-2014, 02:04 PM

BADAZ chevy guy

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Join Date: Mar 2014

Location: Clearfield Utah

Posts: 638

Re: 96 GMC backfire at even throttle

Quote:

Originally Posted by spebull

Need help. My 96 GMC backfires at even throttle. I've changed plugs, rotor, distributor cap,wires,cleaned the injection system. Any suggestions?

Sounds like you may have a burnt exhaust valve. Or one that isn't closing far enough.

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