Symptom Related Diagnostic Procedures

Condition(s):

The engine does not crank
Possible Source(s):
- Battery
- Starter motor
- Relay
- Ignition switch
- Transmission range switch (automatic transmission)
Action(s) to take:
- GO to Pinpoint Test A

Engine cranks slowly
Possible Source(s):
- Battery
- Circuitry
- Starter motor
Action(s) to take:
- GO to Pinpoint Test B

Unusual starter motor noise
Possible Source(s):
- Starter motor
- Flywheel ring gear
Action(s) to take:
- CHECK flywheel ring gear.
- INSPECT starter motor for alignment, cracked case. Make sure the mounting bolts are tightened. If necessary, INSTALL a new starter motor.

The starter spins but the engine does not crank
Possible Source(s):
- Starter motor
Action(s) to take:
- INSPECT the flywheel ring gear for missing teeth. CHECK starter motor for correct mounting. If concern persists, INSTALL a new starter motor.