GM Service Manual Online
For 1990-2009 cars only

Auxiliary Air Conditioning Evaporator Replacement 4 - Door Utility

Removal Procedure

  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  2. Remove the rear quarter interior trim, as necessary. Refer to Rear Quarter Trim Panel Replacement in Interior Trim.

  3. Object Number: 258115  Size: SH
  4. Disconnect the auxiliary refrigerant hoses from the auxiliary evaporator (5).
  5. Disconnect the electrical connectors, as necessary.
  6. Complete the following steps in order to remove the evaporator case cover:
  7. 5.1. Remove the screws (2) securing the case to the rear quarter sheet metal.
    5.2. Remove the blower housing (3) from the rear of the case.
    5.3. Remove the 10 case clips (6).
    5.4. Separate the case halves.
  8. Remove the pipe insulator.
  9. Remove the evaporator core.

Installation Procedure

  1. Install the evaporator core.
  2. Install the pipe insulator.

  3. Object Number: 258115  Size: SH
  4. Install the clips (6) to the evaporator case cover.
  5. Install the screws (2) to the evaporator case cover.
  6. Install the auxiliary case to the vehicle.
  7. Connect the auxiliary refrigerant hoses to the auxiliary evaporator (5).
  8. Connect the electrical connectors, as necessary.
  9. Install the right rear quarter trim panel. Refer to Rear Quarter Trim Panel Replacement in Interior Trim.