GM Service Manual Online
For 1990-2009 cars only

Checks

Action

DEFINITION: Engine continues to run after key is turned OFF, but runs very rough. If engine runs smooth, check the ignition switch and adjustment.

Preliminary Checks

    • Refer to Important Preliminary Checks in Symptoms - Engine Controls .
    • Refer to Visual/Physical Checks in Symptoms - Engine Controls .
    • Search for bulletins.

Fuel System

Check the fuel injectors. Refer to Fuel Injector Solenoid Coil Test , Fuel Injector Balance Test with Special Tool or Fuel Injector Balance Test with Tech 2 .

Additional Checks

Check for short between B+ and any of the ignition feed circuits. Refer to

Cell 10: IGN, RUN/CRK, RUN, SBM, and PDM/CRU Fuses


Object Number: 308771  Size: FS
Power and Grounding Components
Cell 10: CRK and THFT Fuses
Cell 10: LP PK, Horn, HZDT/SG, Stop, PCM, Run/Crank, and R/PMP Fuses
OBD II Symbol Description Notice
Cell 10: WSW, WSW/RFA, HUD, ELC, CR CONT, A/C and HVAC Fuses
Cell 10: WSW, WSW/RFA, HUD, ELC, CR CONT, A/C and HVAC Fuses
Cell 10: WSW, WSW/RFA, HUD, ELC, CR CONT, A/C and HVAC Fuses
Cell 10: CRK and THFT Fuses
Cell 10: F/Pump Fuse
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
.