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. Replace the clutch pedal return spring, if equipped. Refer to Clutch Pedal Replacement .
4. Adjust the clutch pedal position switch.

Clutch incorrectly installed | Remove the clutch and install it correctly. Refer to Clutch, Pressure Plate, and Pilot Bearing Replacement .
Clutch mounting bolts loose or broken |

1. Remove the broken bolts.
2. Replace the broken or loose bolts, and tighten. Refer to Clutch, Pressure Plate, and Pilot Bearing Replacement .

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

1. Inspect the clutch hydraulic fluid for contamination of water.
2. Inspect the reservoir cap for being faulty if water is present.
3. Inspect the clutch hydraulic fluid for dirt or debris.
4. Inspect the clutch hydraulic fluid for contamination of mineral oil. If contaminated, replace the clutch master cylinder and the clutch actuator cylinder. Refer to Clutch Master Cylinder Replacement and Clutch Actuator Cylinder Pipe Replacement .
5. Flush and bleed the clutch hydraulic system if the above conditions are found. Refer to Hydraulic Clutch Bleeding .