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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating, Ventilation And Air Conditioning >> Repair Instructions >> Evaporator Tube Replacement - Auxiliary Side >> Installation Procedure

Installation Procedure

  1. Install the auxiliary evaporator side inlet tube (3) to the vehicle.
    NOTE: Refer to FASTENER NOTICE in Caution and Notices.
  2. Install the bolts that retain the clips on the auxiliary evaporator side inlet tube (3) to the body.

    Tighten 

    Tighten the bolts to 4 N.m (35 lb in).

    Fig 1: Installing Auxiliary Side Inlet Tube Bolts
    G01645710Courtesy of GENERAL MOTORS CORP.
  3. Install the new O-ring seal. Refer to O-RING REPLACEMENT  .
  4. Install the auxiliary evaporator side inlet tube to the auxiliary evaporator front inlet tube (2).

    Tighten 

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

    Fig 2: Installing Auxiliary Evaporator Side Inlet Tube To Front Tube
    G01645711Courtesy of GENERAL MOTORS CORP.
  5. Install the new O-ring seal. Coat the O-ring seal with 525 viscosity refrigerant oil.
  6. Install the auxiliary evaporator side inlet tube (3) to the auxiliary evaporator rear tube.

    Tighten 

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

    Fig 3: Installing Auxiliary Evaporator Side Inlet Tube To Rear Tube
    G01645712Courtesy of GENERAL MOTORS CORP.
  7. Lower the vehicle.
  8. Evacuate and recharge the system. Refer to REFRIGERANT RECOVERY AND RECHARGING .
  9. Leak test the fittings of the component using the J 39400-A. 
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