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 cable 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 after market parts and 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

Important: 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 Slipping
    •  Clutch Grabbing
    •  Clutch Rattle
    •  Clutch Noisy
    •  Clutch Pedal Spongy Low Pedal Effort
    •  Clutch Pedal Hard to Push
    •  Clutch Frequent Adjustments
    •  Clutch Vibration