GM Service Manual Online
For 1990-2009 cars only

Adjustment Procedure


    Object Number: 1640439  Size: SH
  1. Remove the sound insulator. Refer to Instrument Panel Insulator Replacement.
  2. Ensure the clutch pedal position switch retainer is fully seated in the bracket.
  3. Remove the clutch pedal position switch from the retainer. Rotate the switch counterclockwise to release the switch.
  4. Pull back lightly on the clutch pedal to ensure the system is fully released.
  5. While lightly holding on the clutch pedal, install and adjust the clutch pedal position switch:
  6. 5.1. If a new clutch pedal assembly is being installed, the pedal will include a clutch pedal position switch adjustment spacer in place over the switch contact rubber bumper.
    5.2. If the pedal is being reused, position a 2 mm (5/64 in) drill bit or hex wrench as a spacer over the face of the switch contact rubber bumper.
    5.3. Insert the clutch pedal position switch into the retainer.
    5.4. Ensure the switch plunger is fully depressed against the adjustment spacer, drill bit, or hex wrench without deflecting the bracket or the switch contact arm on the pedal.
    5.5. Rotate the switch clockwise to secure the switch in the retainer.
    5.6. Remove the adjustment spacer, drill bit, or hex wrench.

    Object Number: 738588  Size: SH
  7. Release the clutch pedal and inspect the switch barrel to switch contact rubber bumper clearance (1).
  8. Specification
    Clearance should not exceed 1.2 mm (0.047 in).

  9. Install the sound insulator. Refer to Instrument Panel Insulator Replacement.