GM Service Manual Online
For 1990-2009 cars only

Cause

Action

DEFINITION: A rattle noise coming from the clutch components with the clutch disengaged or engaged.

Review the Symptoms - Clutch and perform the necessary inspections.

Idle rattle clutch engaged

Replace the engine flywheel, due to faulty damper springs.

Refer to the following procedures:

    •  Engine Flywheel Replacement for the 2.8L (LP1) engine
    •  Engine Flywheel Replacement for the 3.6L (LY7) engine
    •  Engine Flywheel Replacement for the 6.0L engine

Clutch is improperly installed

Replace the clutch assembly. Refer to Clutch Assembly Replacement .

Clutch disc splines and input shaft splines worn

  1. Inspect the clutch disc hub to input shaft splines for excessive clearance.
  2. Replace the clutch assembly if the clutch splines are worn. Refer to Clutch Assembly Replacement .
  3. Replace the input shaft. Refer to Transmission Disassemble for the Aisin AY6 manual transmission or Transmission Disassemble for the Tremec 6-Speed manual transmission.