1996 Chevy Suburban K2500 w/ 7.4L V8
Backfire in exhuast occurs when in gear at a stop once the engine is at operating temperature.
Does not happen in park or neutral, or while throttle is open.
I have no check engine codes. I have replaced plugs, wires, and fuel filter.
Not sure if it is relatwd, but fuel pump will whine constantly as well
What makes this problem better or worse?
At operating temp
How long has your 1996 Chevrolet K2500 Suburban had this problem?
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