GM Service Manual Online
For 1990-2009 cars only

Reviewing the description and operation information will help you determine the correct symptom diagnostic procedure when a malfunction exists. Reviewing the description and operation information will also help you determine if the condition described by the customer is normal operation. Refer to Clutch System Description and Operation in order to identify the correct procedure for diagnosing the system and where the procedure is located.

Important: Before attempting to repair the clutch hydraulic system for any reason other than failure, the concern should be identified using the diagnostic tables.

The clutch hydraulic system in the vehicle is composed of a clutch master cylinder, clutch hydraulic line assembly and clutch slave cylinder. These parts are serviced separately and require a bleeding procedure to be performed after making repairs to the system.

Important: There is no way to measure clutch slave cylinder travel.

  1. Remove the lower instrument panel closeout panel, hush panel.
  2. Measure the travel of the clutch master cylinder push rod while applying the clutch pedal. Push rod travel should be 28.2 mm (1.1 in).
  3. If clutch pedal travel is insufficient, inspect for the following conditions:
  4. • Carpet or floor mat under the clutch pedal
    • Faulty or damaged clutch pedal
    • Faulty or damaged clutch pedal bushings
  5. If clutch pedal travel is sufficient, inspect the hydraulic system for the following conditions:
  6. • Fluid leaks
    • Damage to the front of the dash
    • Damaged clutch master cylinder
    • Damaged clutch actuator cylinder - requires transaxle removal
    • Air in the clutch hydraulic system
  7. If air is suspected in the clutch hydraulic system, bleed the system. Refer to Hydraulic Clutch Bleeding .