GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1640439  Size: SH
  1. Remove the sound insulator. Refer to Instrument Panel Insulator Replacement.
  2. Remove the clutch pedal position switch from the switch retainer. Rotate the switch counterclockwise to release the switch.
  3. Disconnect the clutch pedal position switch electrical connector.
  4. Remove the switch retainer from the pedal bracket, if necessary.

Installation Procedure


    Object Number: 1640439  Size: SH
  1. Install the switch retainer to the pedal bracket with the retainer indexing arrow facing the instrument panel, if removed previously.
  2. Connect the clutch pedal position switch electrical connector.
  3. Pull back lightly on the clutch pedal to ensure the system is fully released.
  4. While lightly holding the pedal, install and adjust the clutch pedal position switch:
  5. 4.1. If a new clutch pedal assembly is being installed, the pedal assembly will include a clutch pedal position switch adjustment spacer in place over the switch contact rubber bumper.
    4.2. If the pedal assembly 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.
    4.3. Insert the clutch pedal position switch into the retainer.
    4.4. 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.
    4.5. Rotate the switch clockwise to secure the switch in the retainer.
    4.6. Remove the adjustment spacer, drill bit, or hex wrench.

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

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