Flow of Diagnosis

1. Verify the vehicle owner's concern by operating the starter system to duplicate the concern.

WARNING:

- WHEN SERVICING STARTER MOTOR OR PERFORMING OTHER UNDERHOOD WORK IN THE AREA OF THE STARTER, BE AWARE THAT THE HEAVY GAUGE BATTERY INPUT LEAD AT THE STARTER SOLENOID IS "ELECTRICALLY HOT" AT ALL TIMES.

- WHEN WORKING IN AREA OF THE STARTER MOTOR, BE CAREFUL TO AVOID TOUCHING HOT EXHAUST COMPONENTS.

CAUTION: When disconnecting the plastic hard shell connector at the solenoid S-terminal, grasp the plastic connector and pull lead off. DO NOT pull separately on lead wire.

NOTE: A protective cap or boot is provided over this terminal that must be replaced after servicing. Be sure to disconnect battery before servicing starter motor.

2. Inspect to determine if any of the following mechanical and electrical concerns apply:

Mechanical
- Starter motor mounting misaligned.
- Flywheel ring gear tooth damage.

Electrical
- Connections loose, damaged or shorting.
- Damaged battery.

3. It inspection reveals obvious concerns that are readily corrected, service those concerns.
4. If the concerns remain after the inspection, determine the symptoms and go to the Symptom Chart. Symptom Related Diagnostic Procedures