GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Note: Left-Hand Drive Shown, Right-Hand Drive Similar.

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


    Object Number: 1865899  Size: SH
  1. Disconnect the negative battery cable.
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
  3. Remove the nut at the compressor hose connecting block.
  4. Disconnect the electrical connector at the pressure transducer.

  5. Object Number: 1865897  Size: SH
  6. Remove the nut at the condenser connecting block. (Gasoline Engine Only)

  7. Object Number: 1865818  Size: SH
  8. Remove the nuts at the condenser connecting block. (Diesel Only)

  9. Object Number: 1865888  Size: SH
  10. Remove the high-pressure pipe-to-receiver-dryer connecting block retaining nut. (Gasoline Engine Only)

  11. Object Number: 1256071  Size: SH
  12. Remove the surge tank. Refer to Radiator Surge Tank Replacement.
  13. Remove the high-pressure pipe-to-evaporator flange connecting block retaining nut.

  14. Object Number: 1865894  Size: SH
  15. Remove the bolt and the nut which secure the clamps that hold the high pressure pipe to the vehicle.
  16. Remove the high-pressure pipe from the vehicle.
  17. Cap the opening at the receiver-dryer to prevent contamination.

Installation Procedure


    Object Number: 1865894  Size: SH
  1. Position the high-pressure pipe into the vehicle.

  2. Object Number: 1865888  Size: SH
  3. Install a new O-ring on the pipe at the receiver dryer.
  4. Caution: Refer to Fastener Caution in the Preface section.

  5. Install the high-pressure pipe-to-receiver-dryer connecting block nut and tighten to 14 N·m (10 lb ft). (Gasoline Engine Only)

  6. Object Number: 1256071  Size: SH
  7. Install the high-pressure pipe to-evaporator flange connecting block retaining nut and tighten to 15 N·m (11 lb ft).

  8. Object Number: 1865897  Size: SH
  9. Install the nut at the condenser connecting block and tighten to 16 N·m (12 lb ft). (Gasoline Engine Only)

  10. Object Number: 1865818  Size: SH
  11. Install the nut with discharge hose and tighten to 16 N·m (12 lb ft). (Diesel Only)
  12. Install the nut with liquid pipe nut and tighten to 15 N·m (11 lb ft).

  13. Object Number: 1865823  Size: SH
  14. Install the nut at the compressor hose connecting block and tighten to 33 N·m (24 lb ft).
  15. Install the bolt and the nut which secure the clamp that hold the high pressure pipe to the vehicle.
  16. Connect the electrical connector to the pressure transducer.
  17. Install the surge tank. Refer to Radiator Surge Tank Replacement.
  18. Connect the negative battery cable.
  19. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging.