Mechanics

GMC C2500 BACKFIRE PROBLEM

1989 GMC C2500

What causes it to backfire through the intake and exhaust
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Guest
October 21, 2012.




Spark at the wrong time.

Could be cap or rotor. Back in the days, it could also be a failed camshaft.

Have it checked to confirm

Roy
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ASEMaster6371
Oct 21, 2012.
I have a 1993 Chevy s10 2.5 le iter. My mufler exploded. It runs rich. It. Back. I?N in 4th and 5th. Gear loosesi loose significant power on small inclines. My pre ignition check engine. Works)s but doesn't warn! Me of any problems

Tiny
Ironanimal82
Nov 10, 2012.

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