GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Express - AWD 🢒 HVAC 🢒 Heating, Ventilation, and Air Conditioning 🢒 Auxiliary Air Conditioning Evaporator Thermal Expansion Valve Replacement

Removal Procedure

    Object Number: 383143 Size: SH
  1. Remove the evaporator core. Refer to Auxiliary Air Conditioning Evaporator Replacement.
  2. Gently remove the sealer packed around the thermal expansion valve (TXV).

    3. Note: Note the mounting location and the orientation of the tube on the core.

  3. Remove the clip retaining the capillary tube to the evaporator core.
  4. Disconnect the evaporator tube connections from the TXV.
  5. Remove the TXV from the core.

Installation Procedure

    Object Number: 383143 Size: SH
  1. Install the TXV to the core.

    2. Caution: Refer to Fastener Caution in the Preface section.

  2. Connect the evaporator tube connections to the TXV and tighten to 28 N·m (21 lb ft).

    3. Note: Install the clip and the tube in the location and the orientation as noted during the disassembly.

  3. Install the clip in order to retain the capillary tube to the evaporator core.
  4. Pack sealer around the TXV in the manner found during the disassembly.
  5. Install the evaporator core. Refer to Auxiliary Air Conditioning Evaporator Replacement.