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spebull

03-25-2014 01:45 PM

96 GMC backfire at even throttle

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

BADAZ chevy guy

03-25-2014 02:04 PM

Re: 96 GMC backfire at even throttle

Quote:

Originally Posted by spebull (Post 6593874)

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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