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Home >> Ford >> 2021 >> Bronco Wildtrak, 4D Utility >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Manual Transmission - 7-Speed Manual Transmission - Mt88) >> Diagnosis And Testing >> Manual Transmission >> Pinpoint Tests >> Pinpoint Test R: Transmission Whine - A High Pitched Whine, Also Described As A Squeal

Pinpoint Test R: Transmission Whine - A High Pitched Whine, Also Described As A Squeal

WARNING: This page is about a different variant/trim than selected.
  1. Normal Operation and Fault Conditions 

    • Transmission gears are worn (high mileage vehicle) 

      • This is a result of normal gear wear. Disassemble and clean the transmission. Inspect all components. Repair as necessary.

    • Mismatched gear sets 

      • Inspect the gear sets for an uneven wear pattern on the face of the gear teeth. Repair as necessary.

    • Damaged or worn transmission bearing 

      • Inspect the transmission bearings. Install new bearings as necessary.

    Possible Sources 

    • Worn gears
    • Mismatched gear sets
    • Damaged or worn bearing

  2. Diagnostic steps are not provided for this symptom or DTC. REFER to: Diagnostic Methods