Clutch Slipping

WARNING: This page is about a different car, the 2017 Cadillac ATS. 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 sensor. Refer to Clutch Pedal Position Sensor Replacement .
The clutch pedal is binding or sticking	Clear away any items that may be contacting the pedal. Inspect the pedal bushings for ease of movement. Replace the clutch pedal if it is faulty. Refer to Clutch Pedal Replacement .
Clutch master cylinder binding or seized	Replace the clutch master cylinder. Refer to Clutch Master Cylinder Replacement .
Clutch actuator cylinder binding or seized	Replace the clutch actuator cylinder. Refer to Clutch Concentric Actuator Cylinder Replacement .
Kinked or damaged clutch hydraulic hose	Inspect for the correct routing of the clutch hydraulic hose. Route the hose properly. Inspect for loose or faulty engine mounts that may allow the hydraulic hose to be kinked or pinched. Repair or replace faulty engine mounts. Refer to the following procedures: Engine Mount Replacement - Left Side , and Engine Mount Replacement - Right Side for the 2.0L (LTG) or 2.5L (LCV) engines Engine Mount Replacement - Left Side (LGX)Engine Mount Replacement - Left Side (LF4) , and Engine Mount Replacement - Right Side (LF4)Engine Mount Replacement - Right Side (LGX) for the 3.6L (LFX) engine Repair or replace the clutch hydraulic hose if it is damaged. Refer to Hydraulic Clutch Hose/Pipe Replacement (M3L) Hydraulic Clutch Hose/Pipe Replacement (MG9) .
Grease or oil contamination of the clutch disc	Repair the source of the oil leak. Repair the source of the grease leak. Clean the contamination from the clutch components. If contaminates cannot be removed, replace the clutch assembly. Refer to Clutch Assembly Replacement (M3L Transmission) .
Worn or damaged flywheel	Replace the engine flywheel. Refer to Engine Flywheel Replacement , for the 2.0L (LTG) or 2.5L (LCV) engines, Automatic Transmission Flex Plate Replacement (LF4)Automatic Transmission Flex Plate Replacement (LGX) for the 3.6L (LFX) engine.
Worn clutch disc facing	Replace the clutch assembly. Refer to Clutch Assembly Replacement (M3L Transmission) .
Burnt or glazed clutch discs	Replace the clutch assembly. Refer to Clutch Assembly Replacement (M3L Transmission) .
Input shaft splines worn	Replace the input shaft. Refer to Transmission Disassemble (MG9)Transmission Disassemble (M3L) .
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. Refer to Engine Flywheel Replacement , for the 2.0L (LTG) or 2.5L (LCV) engines, Automatic Transmission Flex Plate Replacement (LF4)Automatic Transmission Flex Plate Replacement (LGX) for the 3.6L (LFX) engine.