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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 119 (M/T Clutch) >> Diagnostic Information and Procedures >> Clutch Slipping

Clutch Slipping

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
Cause Action
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.
Incorrect clutch pedal height, not allowing the clutch master cylinder to return Adjust the clutch pedal position switch. Clutch Pedal Position Sensor Replacement 
The clutch pedal return spring is broken or missing Replace the clutch pedal return spring, if equipped.
The clutch pedal is binding or sticking
  1. Clear away any items that may be contacting the pedal.
  2. Inspect the pedal bushings for ease of movement.
  3. Replace the clutch pedal if it is faulty.
Clutch master cylinder binding or seized Replace the clutch master cylinder. Clutch Master Cylinder Replacement 
Clutch actuator cylinder binding or seized Replace the clutch actuator cylinder. Clutch Actuator Cylinder Replacement 
Kinked or damaged clutch hydraulic hose
  1. Inspect for the correct routing of the clutch hydraulic hose.
  2. Route the hose properly.
  3. Inspect for loose or faulty engine mounts that may allow the hydraulic hose to be kinked or pinched.
  4. Repair or replace faulty engine mounts.
  5. Repair or replace the clutch hydraulic hose if it is damaged.
Grease or oil contamination of the clutch disc
  1. Repair the source of the oil leak.
  2. Repair the source of the grease leak.
  3. Clean the contamination from the clutch components.
  4. If contaminates cannot be removed, replace the clutch assembly. Clutch Assembly Replacement 
Worn or damaged flywheel Replace the engine flywheel. Flywheel Replacement
Worn clutch disc facing Replace the clutch assembly. Clutch Assembly Replacement 
Burnt or glazed clutch discs Replace the clutch assembly. Clutch Assembly Replacement 
Input shaft splines worn Replace the input shaft. Transmission Disassemble
Improper resurfacing of the flywheel Replace the flywheel if it has been improperly resurfaced, allowing contact of the clutch disc hub or insufficient clamping load of the pressure plate. Flywheel Replacement
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