GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 891499  Size: SH
  1. Remove the clutch pedal retainer from the front of the clutch pedal assembly.
  2. Pull the clutch pedal upward in order to disengage the clutch master cylinder pushrod from the clutch pedal.
  3. Remove the UBEC. Refer to Underhood Electrical Center or Junction Block Bracket Replacement in Wiring Systems.
  4. Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in the Preface section.


    Object Number: 851233  Size: SH
  5. Place a shop towel under the clutch master cylinder in order to catch any fluid loss.
  6. Disconnect the clutch damper from the clutch master cylinder.

  7. Object Number: 851236  Size: SH
  8. Disconnect the reservoir line from clutch master cylinder.
  9. Cap the reservoir and hydraulic lines in order to prevent fluid loss and contamination.

  10. Object Number: 851303  Size: SH
  11. Rotate the clutch master cylinder one 1/4 turn clockwise and remove the cylinder from the vehicle.

Installation Procedure


    Object Number: 851303  Size: SH

    Important: While installing, ensure that the clutch master cylinder pushrod is aligned with he clutch pedal.

  1. Install the clutch master cylinder while rotating 1/4 turn counterclockwise.
  2. Uncap the reservoir and hydraulic lines.

  3. Object Number: 851233  Size: SH
  4. Connect the clutch damper to the clutch master cylinder.
  5. Install the reservoir line in the clutch master cylinder.

  6. Object Number: 851236  Size: SH
  7. Remove the shop towel and discard in a suitable container.
  8. Install the UBEC. Refer to Underhood Electrical Center or Junction Block Bracket Replacement in Wiring Systems.

  9. Object Number: 891499  Size: SH
  10. Connect the clutch master cylinder pushrod to the clutch pedal.
  11. Install the clutch pedal retainer.
  12. Bleed the clutch hydraulic system. Refer to Hydraulic Clutch Bleeding .