Dieseling/Run-On

Definition: The engine continues to run when turn the key OFF, but runs very roughly. If the engine runs smoothly, check the ignition switch and adjustment.

Preliminary Check

Refer to Important Preliminary Checks. Testing and Inspection

Fuel System Check

- Check the Evaporative Emission (EVAP) system and fuel tank venting.

- Check the fuel injector(s) for leakage.

- Perform a fuel system diagnosis. Refer to Fuel System Diagnosis. System Diagnosis - Fuel System