For 1990-2009 cars

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 |

1. Inspect for leakage in the clutch master cylinder, hose connections, and the clutch actuator.
2. Repair or replace any faulty components.

Incomplete pedal return |

1. Inspect the pedal for full return.
2. Clear any obstacles that may interfere with the pedal operation.
3. Faulty clutch pedal cruise control release switch--Refer to Clutch Pedal Cruise Control Release Switch Replacement.

Clutch incorrectly installed | Remove the clutch and install it correctly. Refer to Clutch Assembly Replacement.
Clutch mounting bolts loose or broken |

1. Remove the broken bolts.
2. Replace the broken or loose bolts and tighten. Refer to Clutch Assembly Replacement.

Release bearing worn or damaged | Replace the release bearing. Refer to Clutch Actuator Cylinder Replacement.
Contaminated hydraulic fluid |

1. Inspect the clutch hydraulic fluid for contamination of water. If available, use a brake fluid boiling point tester. Boiling point should be above 177°C (350°F).
2. Inspect the reservoir cap for being faulty if water is present.
3. Inspect the clutch hydraulic fluid for dirt or debris.
4. Flush and bleed the clutch hydraulic system if the above conditions are found. Refer to Hydraulic Clutch Bleeding.
5. If mineral oil was added, replace the clutch master cylinder and clutch actuator cylinder due to seal damage. Refer to Clutch Master Cylinder Replacement and Clutch Actuator Cylinder Replacement.