Once again another miss firing problem?!?!?!?!?
05-05-2012, 07:02 PM
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Once again another miss firing problem?!?!?!?!?
I have a 07 f150 with the 4.2L V6 with a 5 speed. At low RPM and under load the truck has a miss fire but no check engine light? I have changed the coil pack, wires, plugs, fuel filter, cleaned the air filter and the MAF sensor and the throttle plate. Please help I'm at a loss now?
