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Home >> Buick >> 2004 >> Century Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 149 (Heating, Ventilation & Air Conditioning) >> Repair Instructions >> Thermal Expansion Valve Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .
    2. Fig 1: Block Fitting Nut
    GM1118015Courtesy of GENERAL MOTORS CORP.
  2. Remove the evaporator tube to TXV nut (1).
  3. Disconnect the evaporator outlet and inlet tube from the TXV.
  4. Remove and discard the sealing washers.
    5. IMPORTANT: Cap or tape the open evaporator inlet and outlet tubes immediately to prevent contamination of the refrigerant system.
  5. Cap off the evaporator inlet and outlet tube.
    6. Fig 2: View Of TXV
    GM791147Courtesy of GENERAL MOTORS CORP.
  6. Remove the TXV to evaporator bolts.
  7. Remove the TXV from the evaporator core.
  8. Remove and discard the sealing washers.
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