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Pinpoint Test B: Unusual Starter Noise

WARNING: This page is about a different car, the 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. B1 CHECK THE STARTER MOUNTING 
    • Inspect the starter motor mounting bolts and brackets for looseness.
    • Is the starter motor mounted correctly? 

    Yes  : Go to B2.

    No  : INSTALL the starter motor correctly. REFER to STARTER MOTOR . TEST the system for normal operation.

  2. B2 CHECK FOR ENGINE NOISE 
    • Turn the ignition switch to the OFF position.
    • Connect a fused jumper wire from the B-terminal to the S-terminal of the starter motor. Engage the starter motor and verify the noise is due to the starter operation.
    • Is the noise due to the starter motor engagement? 

    Yes  : Go to B3.

    No  : REFER to ENGINE SYSTEM-GENERAL INFORMATION for general procedures and diagnosis of the engine system.

  3. B3 CHECK FOR UNUSUAL WEAR 
    • Remove the starter motor. Refer to STARTER MOTOR .
    • Inspect the flexplate or flywheel for damaged or worn teeth.
    • Is the noise due to flexplate or flywheel tooth damage? 

    Yes  : INSTALL a new flexplate or flywheel. EXAMINE the starter pinion teeth. If damaged, INSTALL a new starter motor. REFER to STARTER MOTOR . TEST the system for normal operation.

    No  : INSTALL a new starter motor. REFER to STARTER MOTOR . TEST the system for normal operation.

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