Rough, Unstable, or Incorrect Idle, Stalling

Steps 1 - 8:

Steps 9 - 12:

Steps 13 - 18:

Steps 19 - 22:

Steps 23 - 25:

DEFINITION: Engine runs unevenly at idle. If severe, the engine or vehicle may shake. Engine idle speed may vary in RPM. Either condition may be severe enough to stall the engine.