GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  3. Remove the evaporator core. Refer to Auxiliary Air Conditioning Evaporator Replacement .
  4. Complete the following steps in order to remove the TXV from the evaporator core:
  5. • Remove the clip retaining the capillary tube to the suction pipe.
    • Remove the TXV from the evaporator inlet pipe.

Installation Procedure

  1. Install the TXV to the evaporator core by completing the following steps:
  2. • Install the TXV to the evaporator core inlet pipe.
    • Install the capillary tube to the suction line.
    • Install the capillary tube to the retaining clip.
  3. Install the evaporator core. Refer to Auxiliary Air Conditioning Evaporator Replacement .
  4. Charge the system. Refer to Air Conditioning Evaporator Core Replacement .
  5. Connect the negative battery cable.