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).