Cuts Out, Misses

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.

^ Using Sean tool cheek for a misfiring cylinder.
^ Check secondary voltage using a spark tester and jumper wires.
^ Check spark plugs for cracks, broken insulator or improper gap.
^ Check for restricted fuel filter or low fuel pressure. Refer to fuel system.
^ Perform the injector balance test.
^ Perform Compression Test.
^ Check for proper valve timing, broken valve springs or worn camshaft.
^ Fuel quality.