Dieseling/Run-On

DEFINITION
Engine continues to run after key is turned "OFF," but runs very roughly. If engine runs smoothly, check ignition switch and adjustment.

PRELIMINARY CHECKS
Perform the careful visual and physical checks as described in Preliminary Checks. Testing and Inspection

FUEL SYSTEM
Check: Injector(s) for leaking. Apply battery voltage to the fuel pump "test" terminal to enable fuel pump and pressurize fuel system. Visually check injector(s) and Throttle Body Injection (TBI) assembly for fuel leakage. Refer to Chart A-7 Fuel System Diagnosis. Related Tests, Information and Procedures