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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1149 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Evaporator Tube Replacement - Front >> Installation Procedure

Installation Procedure

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  1. Install a new O-ring onto the A/C refrigerant pressure sensor. Refer to O-RING REPLACEMENT  .
    NOTE: Refer to FASTENER NOTICE .
    2. Fig 1: Identifying A/C Refrigerant Pressure Sensor On Evaporator Tube
    G01418552Courtesy of GENERAL MOTORS CORP.
  2. Install the A/C refrigerant pressure sensor to the evaporator tube.

    Tighten 

    Tighten the sensor to 4.75 N.m (42 lb in).

  3. Remove the cap or tape from the evaporator tubes.
  4. Install new O-rings onto the front and rear evaporator tubes. Refer to O-RING REPLACEMENT  .
  5. Install the front evaporator tube to the vehicle.
  6. Connect the front evaporator tube to the rear evaporator tube.
  7. Install the bolt which secures the front evaporator tube to the rear evaporator tube.

    Tighten 

    Tighten the bolt to 25 N.m (18 lb ft).

    Fig 2: Connecting Front Evaporator Tube To Rear Evaporator Tube
    G01418553Courtesy of GENERAL MOTORS CORP.
  8. Remove the cap or tape from the condenser.
  9. Connect the front evaporator tube to the condenser.
  10. Install the bolt which secures the front evaporator tube to the condenser.

    Tighten 

    Tighten the bolt to 27 N.m (20 lb ft).

    Fig 3: Connecting Front Evaporator Tube To Condenser
    G01418554Courtesy of GENERAL MOTORS CORP.
  11. Connect the electrical connector to the refrigerant pressure sensor.
    Fig 4: Connecting Electrical Connector To Refrigerant Pressure Sensor
    G01418555Courtesy of GENERAL MOTORS CORP.
  12. Install the upper radiator support. Refer to RADIATOR SUPPORT REPLACEMENT in Engine Cooling.
  13. Evacuate and recharge the A/C system. Refer to REFRIGERANT RECOVERY AND RECHARGING  .
  14. Install the battery heat shield. Refer to BATTERY HEAT SHIELD REPLACEMENT in Engine Electrical.
  15. Leak test the fittings of the component using J 39400-A  .
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