Misses Under Load

SYMPTOM DESCRIPTION
Steady pulsation or jerking that follows engine speed, usually more pronounced as engine load increases. The exhaust has a steady spitting sound at idle or low speed.


POSSIBLE CAUSE ACTION



Contaminated fuel - Drain fuel tank and add clean fuel.


Restricted fuel filter/line - Replace filter/repair restricted line.


Low fuel pressure - Test fuel pressure.


Plugged fuel injectors - Perform injector service (cleaning).