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Home >> Ford >> 2022 >> Mustang Mach 1 Premium, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 35 (Manual Transmission - 6-Speed Manual Transmission - Tr3160) >> Diagnosis And Testing >> Manual Transmission >> Evaluate Transmission

Evaluate Transmission

WARNING: This page is about a different variant/trim than selected.
NOTE: The vehicle should not be driven if the transmission fluid level is low or damage may occur.
NOTE: Before attempting to repair any concerns, road test the vehicle to determine which system the concern is in.
  1. Road test the vehicle. Use the following methods to diagnose the concern.

    • Start the engine.

    • Evaluate the noise in NEUTRAL while vehicle is parked.

      • Check whether the noise is present with the clutch fully disengaged (clutch pedal applied). Check to see if the pedal pulsates abnormally (clutch diaphragm finger runout).

      • Check whether the noise is present with the gearshift in the NEUTRAL position and the clutch fully engaged (clutch pedal released). Apply the park brake and move the gearshift towards the 1st gear position.

      • With the clutch fully engaged (clutch pedal released) check whether the noise is present as the engine speed is raised. If the noise reduces, note the engine speed at which this occurs.

    • Listen for any change in noise while applying and releasing the clutch pedal.

    • Listen for any change in noise while changing the engine rpm.

    • Drive the vehicle and shift through all the gears including REVERSE. Listen for any changes in noise.

    • Drive the vehicle in the gear in which the noise is most noticeable. Apply the clutch pedal and leave the gear engaged. Listen for any change in noise.

    • Drive the vehicle in the gear in which the noise is most noticeable. Apply the clutch pedal and shift the transmission into NEUTRAL. Release the clutch pedal and allow the vehicle to coast.

  2. The following list of conditions are typical clutch concerns.

    • Clutch slippage

    • Clutch chatter or shudder

    • Clutch pedal feels spongy or has excessive travel. Clutch will not disengage

    • Clutch drag, also hard to shift

    • Clutch pedal pulsation

    • Clutch-related vibrations

    • Excessive noise

  3. The following list of conditions are typical clutch hydraulic system concerns.

    • Clutch pedal feels spongy or has excessive travel. Clutch will not disengage

    • Clutch drag, also hard to shift

    • Clutch pedal pulsation

    • Clutch system leakage

  4. Compare the road test results with the following symptom charts. The following list of conditions are typical transmission concerns:
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