For 1990-2009 cars

#### Dieseling, Run-On Symptom

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
Definition: Engine continues to run after key is turned OFF, but runs very rough. If engine runs smooth, check ignition switch and adjustment.
1 | Was the Powertrain On-Board Diagnostic (OBD) System Check performed? | -- | Go to Step 2 | Go to Powertrain OBD System Check.
2 |

1. Perform a bulletin search.
2. If a bulletin that addresses the symptom is found, correct the condition as instructed in the bulletin.

Was a bulletin found that addresses the symptom?

--

Go to Step 6

Go to Step 3

3 | Was visual/physical check performed? | -- | Go to Step 4 | Go to Visual /Physical Check.
4 |

1. Check for a short between B+ and any of the ignition feed circuits. Refer to Fuse Block Details in Electrical Diagnosis section 8A.
2. If a problem is found, repair as necessary.

Was a problem found?

--

Go to Step 6

Go to Step 5

5 |

1. Review all diagnostic procedures within this table.
2. If all procedures have been completed and no malfunctions have been found, review/inspect the following:

• | Visual/physical inspection.

• | Scan Tool data.

• | Freeze Frame data/Failure Records Data.

• | All electrical connections within a suspected circuit and/or system.

3. If a problem is found, repair as necessary.

Was a problem found?

--

Go to Step 6

Review Technical Service Bulletins

6 | Operate the vehicle to duplicate conditions present when the original symptom was noted. Is symptom still present? | -- | Go to Step 3 | Repair Complete