GM Service Manual Online
For 1990-2009 cars only

Liquid Line Replacement with C57

Special Tools

    • J 39400-A Halogen Leak Detector
    • J 45689 A/C Quick Connect Joint Tool

Removal Procedure

  1. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging.
  2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
  3. Remove the surge tank. Refer to Radiator Surge Tank Replacement.
  4. Disconnect the electrical connector from the wiper motor.
  5. Disconnect the engine harness electrical connector.
  6. Remove the surge tank outlet hose bracket nuts from the cowl.
  7. Reposition the surge tank outlet hose.
  8. Remove the brake booster. Refer to Power Vacuum Brake Booster Replacement.
  9. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.

  10. Object Number: 1348611  Size: SH
  11. Remove the liquid line quick connect fitting from the condenser tube. Refer to Air Conditioning Line/Tube Connector Removal/Replacement.
  12. Disconnect the liquid line from the condenser tube.

  13. Object Number: 817540  Size: SH
  14. Remove the liquid line quick connect fitting (1) from the evaporator. Refer to Air Conditioning Line/Tube Connector Removal/Replacement.
  15. Disconnect the liquid line from the evaporator.
  16. Remove and discard the O-rings from the liquid line. Refer to O-Ring Replacement.

Installation Procedure


    Object Number: 817540  Size: SH
  1. Install new O-rings to the liquid line. Refer to O-Ring Replacement.
  2. Connect the liquid line to the evaporator.
  3. Install a quick connect fitting (1) to the liquid line at the evaporator. Refer to Air Conditioning Line/Tube Connector Removal/Replacement.
  4. Connect the liquid line to the condenser tube.
  5. Install a quick connect fitting to the liquid line at the condenser. Refer to Air Conditioning Line/Tube Connector Removal/Replacement.
  6. Install the brake booster. Refer to Power Vacuum Brake Booster Replacement.
  7. Reposition the surge tank outlet hose to the installed position.
  8. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1348611  Size: SH
  9. Install the surge tank outlet hose bracket nuts to the cowl.
  10. Tighten
    Tighten the nuts to 9 N·m (80 lb in).

  11. Connect the engine harness electrical connector.
  12. Connect the electrical connector to the wiper motor.
  13. Install the surge tank. Refer to Radiator Surge Tank Replacement.
  14. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
  15. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
  16. Leak test the fittings of the component using J 39400-A .