GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Corvette 🢒 HVAC 🢒 Heating, Ventilation, and Air Conditioning 🢒 Compressor Clutch Assembly Replacement

Tools Required

J 37872 Universal Spanner Wrench

Removal Procedure

    Object Number: 1488913 Size: SH
  1. Remove the air conditioning drive belt. Refer to Air Conditioning Compressor Belt Replacement for the 6.0L engine or Air Conditioning Compressor Belt Replacement for the 7.0L engine.
  2. Remove the electrical connector from the A/C compressor coil assembly.

    3. Object Number: 1555082 Size: SH
  3. Using J 37872 , remove and discard the air conditioning clutch screw (7).

    4. Important: There are air gap shims (5) between the clutch driver and the splined shaft.

  4. Remove the clutch driver (6) from the splined shaft.
  5. Remove and discard the pulley and bearing assembly retainer (4).
  6. Remove the pulley and bearing assembly (3) from the A/C compressor.
  7. Remove and discard the coil assembly retainer (2).
  8. Remove the coil assembly (1) from the A/C compressor.
  9. Carefully clean the splined shaft and the retainer grooves of any foreign debris.
  10. Carefully clean the shaft threads of adhesive using a M6 x 1.0 tap.

    11. Carefully blow out debris with compressed air.

Installation Procedure

    Object Number: 1555082 Size: SH
  1. Install the coil assembly (1) to the A/C compressor.

    2. Important: Ensure that retainers are fully seated within their groove.

  2. Install a new coil assembly retainer (2).
  3. Install the pulley and bearing assembly (3) to the A/C compressor.
  4. Install a new pulley and bearing assembly retainer (4).

    5. Important: Using shims (5), ensure a 0.3-0.6 mm (0.011-0.024 in) air gap is between the clutch driver and pulley.

    Use a light coat of clean PAG oil to hold the shims in place.

  5. Install the clutch driver (6) to the splined shaft.
  6. Measure the air gap between the clutch driver (6) and pulley (3). The air gap should be between 0.3-0.6 mm (0.011-0.024 in).
  7. Ensure that the clutch driver (6) does not drag against the pulley (3) when the pulley is rotated.

    8. Notice: Refer to Fastener Notice in the Preface section.

  8. Using J 37872 , install a new air conditioning clutch screw (7).

    9. Tighten
    Tighten the screw to 10 N·m (89 lb in).


    Object Number: 1488913 Size: SH
  9. Connect the electrical connector to the A/C compressor coil assembly.
  10. Install the air conditioning drive belt. Refer to Air Conditioning Compressor Belt Replacement for the 6.0L engine or Air Conditioning Compressor Belt Replacement for the 7.0L engine.