GM Service Manual Online
For 1990-2009 cars only

Probable Cause

Action

DEFINITION: With the clutch pedal pressed to the floor; the shift lever does not move freely in and out of REVERSE.

The clutch pedal travel is incorrect.

  1. Check for a clutch pedal restriction or a bent clutch pedal.
  2. Remove any restrictions from the clutch pedal, or replace the clutch pedal if necessary.

For the clutch pedal replacement procedure, refer to Clutch Pedal Replacement .

Air is in the clutch hydraulic system.

Bleed the air from the clutch hydraulic system.

Refer to Hydraulic Clutch Bleeding .

The clutch hydraulic system is leaking.

  1. Inspect the clutch hydraulic system components for the following:
  2. • Master cylinder leakage: primarily from the rear seal
    • Actuator cylinder leakage
    • Hydraulic hose leakage
    • Hydraulic hose connections leakage
  3. Repair or replace components as necessary.

Bleed the air from the clutch hydraulic system.

Refer to Hydraulic Clutch Bleeding .

The Clutch pressure plate to engine flywheel bolts are loose.

  1. Inspect the clutch pressure plate to engine flywheel bolts for looseness.
  2. If loose bolts are suspected, loosen all the bolts evenly, then tighten the bolts to specifications.

Refer to Clutch Pressure Plate and Clutch Driven Plate .

The release bearing is binding on the actuator cylinder quill.

  1. Inspect the release bearing and the quill of the actuator cylinder for scoring or a lack of lubrication.
  2. Replace or lubricate components as necessary.
  3. • For the release bearing replacement procedure, refer to Release Bearing Replacement .
    • For the actuator cylinder replacement procedure, refer to Clutch Actuator Cylinder Replacement .

The clutch driven plate hub is binding on the propeller input shaft splines.

  1. Inspect the input shaft splines for wear or damage.
  2. Inspect the clutch driven plate hub for wear or damage.
  3. Replace components as necessary.
  4. • For the input shaft replacement procedure, refer to Driveline Support Assembly Replacement in Propeller Shaft.
    • For the clutch driven plate replacement procedure, refer to Clutch Pressure Plate and Clutch Driven Plate .

The clutch driven plate is warped or bent.

  1. Measure the runout of the clutch driven plate.
  2. The clutch driven plate runout should not exceed:
  3. Specification
    0.5 mm (0.020 in)

  4. Replace the clutch driven plate, if necessary.

Refer to Clutch Pressure Plate and Clutch Driven Plate .

The clutch pilot bearing is faulty.

  1. Inspect the clutch pilot bearing.
  2. Replace the clutch pilot bearing, if necessary.

Refer to Clutch Pilot Bearing Replacement .