Pinpoint Test A: Clutch Slippage

• Apply the parking brake.
• Start engine and engage 4th gear.
• Run the engine at approximately 2,000 rev/min.
• Release clutch pedal slowly.
• Does the engine stall when the clutch pedal is fully released? 

Yes  : Clutch OK.

No  : GO to  A2.

• Install a cable tie to the lower clutch pedal, than attach a tape measure to the cable tie.
  Fig 1: Attaching Tape Measure To Clutch Pedal

  Courtesy of FORD MOTOR CO.
• Pull the tape measure up to the steering wheel. Position it through the steering wheel opening. Put a pieces of masking tape on the wheel, index mark the tape.
  Fig 2: Indexing Tape Measure Using Steering Wheel

  Courtesy of FORD MOTOR CO.
• Depress the clutch fully and start the vehicle.
• Shift the transmission into reverse gear, then move the shift lever forward to the position in between reverse gear and neutral. Slowly release the clutch pedal (if the vehicle creeps rearward, move the shift lever forward a little more). The transmission will behave as if in neutral, but the reverse gear synchronizer will be bypassed.
• With the clutch pedal up, gently pull the shift lever toward the reverse gear position. Gear clash can now be heard.
• Slowly depress the clutch pedal. Using the mark on the tape as a reference, note the measurement when the gear clash stops or the shift lever slides into reverse gear. Depress 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.
  PEDAL POSITION
  
  

  Item	Pedal Position
  1	Gear clash begins
  2	Gear clash ends
  3	Clutch pedal downstop

  Fig 3: Identifying Pedal Positions

  Courtesy of FORD MOTOR CO.
• Is the clutch reserve between 1 to 1.5 inch? 

Yes  : If the clutch reserve is not 1 to 1.5 inch, INSTALL a new pressure plate and clutch disc.

No  : Clutch pedal reserve is OK. VERIFY customer concern. GO to SYMPTOM CHART  if necessary.