GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • J 33023-A Puller Pilot
    • J 33024 Clutch Coil Installer Adapter
    • J 33025 Clutch Coil Puller Legs
    • J 34992 Compressor Holding Fixture
    • J 8433-1 Puller Bar
    • J 8433-3 Forcing Screw

Removal Procedure

    Warning: Refer to Battery Disconnect Warning in the Preface section.


    Object Number: 1256090  Size: SH
  1. Disconnect the negative battery cable.
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
  3. Remove the compressor. Refer to Air Conditioning Compressor Replacement.
  4. Remove the clutch plate and hub assembly. Refer to Compressor Clutch Plate/Hub Assembly Replacement.
  5. Remove the clutch rotor and bearing. Refer to Clutch Rotor and/or Bearing Replacement.
  6. Mark the clutch coil terminal location on the compressor housing.
  7. Install the J 33023-A  (3) on the compressor housing. Also install the J 8433-1  (1) with the J 33025  (4).
  8. Tighten the J 8433-3  (1) against the J 33023-A  (3) to remove the clutch coil.

Installation Procedure


    Object Number: 1251999  Size: SH
  1. Place the J 33024  (1) over the internal opening of the clutch coil housing and align the J 33024  (1) with the compressor housing.

  2. Object Number: 1252001  Size: SH
  3. Center the J 8433-1  (4) in the countersunk center hole of the J 33024  (3). Install the through-bolts of the J 34992  (2) and the washers in the crossbar slots. Thread them into the holding fixture to the full thickness of the holding fixture.
  4. Note: Be sure the clutch coil and the installer stay in-line during installation.

  5. Turn the J 8433-3  (1), or use a suitable vise, to force the clutch coil onto the compressor housing.

  6. Object Number: 1252002  Size: SH
  7. When the clutch coil is fully seated on the compressor housing, use a 3 mm (1/8 in) diameter drift punch and stake the housing at 3 places, 120 degrees apart, to ensure that the clutch coil will remain in position. The stake point size should be only 1/2 the area of the punch tip and approximately 0.28-0.35 mm (0.010-0.015 in) deep.
  8. Install the clutch rotor and bearing assembly. Refer to Clutch Rotor and/or Bearing Replacement.
  9. Install the clutch plate and hub assembly. Refer to Compressor Clutch Plate/Hub Assembly Replacement.
  10. Install the compressor. Refer to Air Conditioning Compressor Replacement.
  11. Connect the negative battery cable.
  12. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging.