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Pinpoint Test A: Clutch Slippage

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

    REFER to: Clutch Controls - Component Location .

    Possible Sources 

    • Clutch disc facing
    • Clutch pedal reserve
    • Flywheel
    • Hardened or oiled clutch disc facing surface
    • Worn or damaged pressure plate

  2. A1 TEST CLUTCH SLIPPAGE

    • Apply the parking brake.

    • Start engine and engage 4th gear.

    • Run the engine at approximately 2, 000 RPM.

    • Slowly release clutch pedal.

    Does the engine stall when the clutch pedal is fully released? 

    Yes  Clutch is OK.
    No  GO to  A2

  3. A2 MEASURE THE CLUTCH RESERVE

    NOTE: If equipped, remove the floor mat to allow the clutch pedal to travel to the downstop.

    • Install a cable tie to the clutch pedal, than attach a tape measure to the cable tie.

    • Pull the tape measure up to the steering wheel. Position it through the steering wheel opening. Put a piece of masking tape on the steering wheel and index mark the masking tape.

    • Press the clutch pedal fully and start the vehicle.

    • Shift the transmission into REVERSE gear, then move the gearshift lever forward to the position in between REVERSE gear and NEUTRAL. Slowly release the clutch pedal (if the vehicle creeps rearward, move the gearshift lever forward a little more). The transmission will work as if in NEUTRAL, but the reverse gear synchronizer will be bypassed.

    • With the clutch pedal released, gently pull the gearshift lever toward the REVERSE gear position. Gear clash can now be heard.

    • Slowly press the clutch pedal. Using the mark on the tape as a reference, note the measurement when the gear clash stops or the gearshift lever slides into REVERSE gear. Press the clutch pedal to the downstop. The difference between the measurement taken when the gear clash stopped and the measurement taken at the downstop is the clutch reserve.
      Item Pedal Position
      1 Gear clash begins
      2 Gear clash ends
      3 Clutch pedal downstop

    Is the clutch reserve greater than or equal to 25 mm (0.984 in)? 

    Yes  Clutch pedal reserve is OK. VERIFY customer concern.
    No  INSTALL a clutch disc and pressure plate. REFER to: Clutch Disc and Pressure Plate - 2.3L EcoBoost (231kW/314PS)/2.3L EcoBoost (257kW/350PS) - MI4 . REFER to: Clutch Disc and Pressure Plate - 5.0L 32V Ti-VCT .
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