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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 X: Boom Noise While Accelerating

Pinpoint Test X: Boom Noise While Accelerating

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

    • Broken dual mass flywheel 

      • Accelerate the vehicle in the highest gear from 1000 rpm to 2000 rpm at wide open throttle. If the boom noise is noticeable during acceleration but it stops after the accelerator pedal is released, remove the clutch and inspect the flywheel. REFER to: Clutch Disc and Pressure Plate

    Possible Sources 

    • Dual mass flywheel

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

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