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Misses Under Load
Definition: 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,
Fuel Metering ^ Plugged fuel injectors, perform Injector Balance Test
^ Perform injector service