Clutch Pedal Spongy Low Pedal Effort

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

Cause	Action
DEFINITION: The clutch pedal may feel spongy, or it requires very little effort to operate. Review Symptoms - Clutch and perform the necessary inspections.
Air in the hydraulic system	Bleed the clutch hydraulic system. Refer to Hydraulic Clutch Bleeding .
Master cylinder fluid level low	Inspect for leakage in the clutch master cylinder, hose connections, and the clutch actuator. Repair or replace any faulty components.
Incomplete pedal return	Inspect the pedal for full return. Clear any obstacles that may interfere with the pedal operation. Replace the clutch pedal return spring. Refer to Clutch Return Spring Replacement . Adjust the clutch pedal position switch. Refer to Clutch Pedal Position Switch Replacement .
Clutch incorrectly installed	Replace the clutch assembly. Refer to Clutch Assembly Replacement .
Clutch mounting bolts loose or broken	Remove the broken bolts. Replace the broken or loose bolts, and tighten. Refer to Clutch Assembly Replacement .
Clutch pressure plate not adjusted	Adjust the clutch pressure plate. Refer to Clutch Pressure Plate Adjustment (Tremec 6-Speed) .
Release bearing worn or damaged	Replace the release bearing. Refer to Clutch Concentric Actuator Cylinder Replacement (CTS) .
Contaminated hydraulic fluid	Inspect the clutch hydraulic fluid for contamination of moisture. Inspect the reservoir cap for being faulty if moisture is present. Inspect the clutch hydraulic fluid for dirt or debris. Flush and bleed the clutch hydraulic system if the above conditions are found. Refer to Hydraulic Clutch Bleeding .