Cause
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Actions
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DEFINITION: The clutch does not engage completely after the pedal
is released, after shifting gears, or the clutch slips during
maximum engine loads, such as climbing hills or high vehicle
speeds. Clutch slipping is identified by increase in engine RPM
without increase in vehicle speed. Review the
Symptoms - Clutch and perform the necessary inspections.
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Incorrect clutch pedal height, not allowing the clutch master
cylinder to return.
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Adjust the clutch pedal position switch. Refer to
Clutch Pedal Position Sensor Replacement .
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The clutch pedal return spring is broken or missing.
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Replace the clutch pedal return spring, if equipped. Refer to
Brake, Accelerator, and Clutch Pedal Replacement .
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The clutch pedal is binding or sticking.
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1. |
Clear away any items that may be contacting the
pedal. |
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2. |
Inspect the pedal bushings for ease of
movement. |
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Clutch master cylinder binding or seized.
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Replace the clutch master cylinder. Refer to
Clutch Master Cylinder Replacement .
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Clutch actuator cylinder binding or seized.
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Replace the clutch actuator cylinder. Refer to
Clutch Actuator Cylinder Replacement .
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Kinked or damaged clutch actuator cylinder front pipe.
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1. |
Inspect for the correct routing of the clutch
actuator cylinder front pipe. |
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2. |
Route the clutch actuator cylinder front pipe
properly. |
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3. |
Inspect for loose or faulty engine mounts that may
allow the clutch actuator cylinder front pipe to be kinked or
pinched. |
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4. |
Repair or replace faulty engine mounts. |
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Grease or oil contamination of the clutch disc.
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1. |
Repair the source of the oil leak. |
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2. |
Repair the source of the grease leak. |
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3. |
Clean the contamination from the clutch
components. |
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Oil-soaked clutch disc.
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Correct the leak at its source and install a new clutch disc.
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Weak diaphragm spring.
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Replace the clutch assembly. Refer to
Clutch Pressure and Driven Plate Replacement .
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Driven plate that is not seated.
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Start the engine 30 - 40 times. Do not overheat the engine.
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Driven plate is overheated.
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Allow the driven plate to cool.
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Worn or damaged flywheel.
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Replace the engine flywheel.
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Worn clutch disc facing.
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Replace the clutch assembly. Refer to
Clutch Pressure and Driven Plate Replacement .
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Burnt or glazed clutch discs.
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Replace the clutch assembly. Refer to
Clutch Pressure and Driven Plate Replacement .
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Input shaft splines worn.
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Replace the input shaft for F17 (MDG, M26, M7Q), or replace
transmission for M32 (MZ4, MZ0, MF3)
Transmission Replacement or for F40 (MYJ) Refer to
Transmission Replacement .
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Improper resurfacing of the flywheel.
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Replace the flywheel if it has been improperly resurfaced,
allowing contact of the clutch disc hub or insufficient clamping
load of the pressure plate.
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