GM Service Manual Online
For 1990-2009 cars only

Evaporator Tube Replacement Body VIN 3

Tools Required

    • J 26549-E Orifice Tube Remover
    • J 39400-A Halogen Leak Detector

Removal Procedure

  1. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging .

  2. Object Number: 735915  Size: SH
  3. Loosen the evaporator tube (6) from the evaporator.
  4. Remove the evaporator tube nut from the condenser.
  5. Remove the nuts (1,5) retaining the evaporator tube to the fender.
  6. Remove the washer solvent container. Refer to Windshield Washer Solvent Container Replacement in Wipers/Washer Systems.
  7. Remove the coolant recovery tank. Refer to Coolant Recovery Reservoir Replacement in Engine Cooling.
  8. Remove the evaporator tube using J 26549-E .
  9. Remove the O-ring seal and discard.

Installation Procedure

  1. Install the new O-ring seal. Refer to O-Ring Replacement .

  2. Object Number: 735915  Size: SH
  3. Install the evaporator tube.
  4. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  5. Install the evaporator tube.
  6. Connect the evaporator tube to the evaporator.

    Tighten
    Tighten the nut to 28 N·m (21 lb ft).

  7. Connect the evaporator tube to the condenser.
  8. Tighten
    Tighten the nut to 28 N·m (21 lb ft).

  9. Install the coolant recovery tank. Refer to Coolant Recovery Reservoir Replacement in Engine Cooling.
  10. Install the washer solvent container. Refer to Windshield Washer Solvent Container Replacement in Wipers/Washer Systems.
  11. Install the nuts (1,5) retaining the evaporator tube to the fender.
  12. Tighten
    Tighten the nuts to 28 N·m (21 lb ft).

  13. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  14. Leak test the fittings of the components using the J 39400 .

Evaporator Tube Replacement Body VIN 6

Tools Required

    • J 26549-E Orifice Tube Remover
    • J 39400-A Halogen Leak Detector

Removal Procedure

  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .

  2. Object Number: 871559  Size: SH
  3. Loosen the evaporator tube (5) from the evaporator.
  4. Loosen the auxiliary evaporator tube (7) from the auxiliary piping.
  5. Remove the evaporator tube nut from the condenser.
  6. Remove the nuts (1,2) retaining the evaporator tube to the fender.
  7. Remove the washer solvent container. Refer to Windshield Washer Solvent Container Replacement in Wipers/Washer Systems.
  8. Remove the coolant recovery tank. Refer to Coolant Recovery Reservoir Replacement in Engine Cooling.
  9. Remove the evaporator tube using J 26549-E .
  10. Remove the O-ring seal and discard.

Installation Procedure

  1. Install the new O-ring seal. Refer to O-Ring Replacement .

  2. Object Number: 871559  Size: SH
  3. Install the evaporator tube.
  4. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  5. Connect the evaporator tube to the evaporator (5).
  6. Tighten
    Tighten the nut to 28 N·m (21 lb ft).

  7. Connect the auxiliary evaporator tube to the auxiliary piping.
  8. Tighten
    Tighten the nut to 28 N·m (21 lb ft).

  9. Connect the evaporator tube to the condenser.
  10. Tighten
    Tighten the nut to 28 N·m (21 lb ft).

  11. Install the coolant recovery tank. Refer to Coolant Recovery Reservoir Replacement in Engine Cooling.
  12. Install the washer solvent container. Refer to Windshield Washer Solvent Container Replacement in Wipers/Washer Systems.
  13. Install the nuts (1,2) retaining the evaporator tube to the fender.
  14. Tighten
    Tighten the nuts to 28 N·m (21 lb ft).

  15. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  16. Leak test the fittings of the components using the J 39400-A .