Pinpoint Test C: Unusual Starter Noise

Starting System

Pinpoint Test C: Unusual Starter Noise

This pinpoint test is intended to diagnose the following:

- Starter motor

- Starter motor mounting

- Starter motor engagement

- Flexplate ring gear

PINPOINT TEST C : UNUSUAL STARTER NOISE

C1 CHECK THE STARTER MOUNTING

- Inspect the starter mounting bolts for looseness.

Is the starter motor mounted correctly?

Yes
GO to C2.

No
INSTALL a new starter motor. REFER to Starter Motor - 2.0L GTDI or Starter Motor - 3.5L, 3.7L . TEST the system for normal operation.

C2 CHECK FOR ENGINE NOISE

- Ignition OFF.

- Connect a remote starter switch between the starter solenoid ("B" terminal) C197A-1, circuit SDC02 (RD) and ("S" terminal) C197B-1, circuit CDC25 (BN/GN).






- Engage the starter and verify the noise is due to starter operation.

Is the noise due to the starter engagement?

Yes
GO to C3.

No
REFER to Engine to continue diagnosis.

C3 CHECK FOR UNUSUAL WEAR

- Remove the starter motor. REFER to Starter Motor- 2.0L GTDI or Starter Motor- 3.5L, 3.7L .

- Inspect the flexplate ring gear for damaged or worn teeth.

Are the flexplate ring gear teeth damaged or worn?

Yes
INSTALL a new flexplate. EXAMINE the starter pinion teeth. If damaged, INSTALL a new starter motor. REFER to Starter Motor - 2.0L GTDI or Starter Motor - 3.5L, 3.7L . TEST the system for normal operation.

No
INSTALL a new starter motor. REFER to Starter Motor - 2.0L GTDI or Starter Motor - 3.5L, 3.7L TEST the system for normal operation.