GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the HVAC module assembly. Refer to HVAC Module Assembly Replacement.

  2. Object Number: 2015192  Size: SH
  3. Remove the four screws (1).

  4. Object Number: 2015193  Size: SH
  5. Disengage the four clips (1) and remove the lower heater case (2).

  6. Object Number: 2015196  Size: SH
  7. Disengage the clamp (2).
  8. Remove the evaporator (1).
  9. Remove the two bolts and the expansion valve from the evaporator.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.

    Note: If the evaporator was replaced add 400 ml (1.35 fl oz) of compressor oil.

    Install new O-rings lubricated with 525 viscosity mineral oil.

  1. Install the expansion valve to the evaporator. Secure with the 2 bolts.
  2. Tighten
    Tighten the bolts to 3.5 N·m (31 lb in).


    Object Number: 2015196  Size: SH
  3. Engage the clamp (2) and install the evaporator (1) to the HVAC module assembly.

  4. Object Number: 2015202  Size: SH
  5. Engage the four clips (1) and install the lower heater case (2).

  6. Object Number: 2015192  Size: SH
  7. Install the four screws (1).
  8. Install the HVAC module assembly. Refer to HVAC Module Assembly Replacement.