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Black'Rado
August 21st, 2011, 03:07 PM
Trying to track down a missfire in this truck
99 silverado 5.3l 4x4
we changed coil packs, plugs and wires and still get a miss at idle and under load.
i logged it and shows that cyl 5 is really the worst.

maybe im missing something in the log, but maybe someone could look at the log and maybe can find something.

thanks

Boost
August 22nd, 2011, 03:50 AM
Could be an injector (clogged). Good luck