Dieseling, Run-On. Buick Regal 1997

For 1990-2009 cars only

Makes 🢒 Buick 🢒 1997 🢒 Regal 🢒 Engine 🢒 Engine Controls - 3.8L 🢒 Dieseling, Run-On

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 the Powertrain OBD System Check.

•	Refer to Important Preliminary Checks.

•	Refer to Visual/Physical Checks

•	Search for bulletins.

Fuel System

Check the fuel injectors. Refer to Fuel Injector Coil/Fuel Injector Balance Test.

Additional Check(s)

Check for short between B+ and any of the ignition feed circuits. Refer to Fuse Blcok Details in Electrical Diagnosis.