GM Service Manual Online
For 1990-2009 cars only

Strategy Based Diagnostics

Review the clutch system operations in order to familiarize yourself with the system functions. Refer to Clutch System Description and Operation.

Visual/Physical Inspection

    • Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
    • Inspect the clutch master cylinder for the correct fluid level.
    • Inspect the hydraulic clutch lines for dents, kinks, or other obvious damage that may affect the clutch system operations.
    • Inspect the clutch system for contamination of dirt, oil, or other substances that may affect the clutch system operations.
    • Inspect for aftermarket components and power take-off (PTO) set-ups.

Intermittent

Test the vehicle under the same conditions that the customer reported in order to verify the system is operating properly.

Symptom List

Note: Due to the variety of clutch options there may be components in the mechanical diagnostic tables that are not on a particular vehicle.

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

    •  Clutch Drag Hard Shifting
    •  Clutch Rattle
    •  Clutch Noisy
    •  Clutch Pedal Spongy Low Pedal Effort
    •  Clutch Pedal Hard to Push
    •  Clutch Vibration