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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 Rear >> Installation Procedure

Installation Procedure

  1. Install the seal washers. Refer to SEALING WASHER REPLACEMENT .
  2. Install the tube to the auxiliary evaporator module.
    NOTE: Refer to FASTENER NOTICE in Caution and Notices.
    Fig 1: Installing Auxiliary Evaporator Module
    G01645715Courtesy of GENERAL MOTORS CORP.
  3. Install the nut that retains the tube to the auxiliary evaporator module.

    Tighten 

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

  4. Install the bolts that retain the clips on the tubes to the body.

    Tighten 

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

  5. Install the auxiliary evaporator rear tube inlet tube to the auxiliary evaporator inlet side tube.

    Tighten 

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

    Fig 2: Installing Auxiliary Evaporator Rear Outlet Tube
    G01645716Courtesy of GENERAL MOTORS CORP.
  6. Install the auxiliary evaporator rear tube outlet tube to the auxiliary evaporator outlet side tube.

    Tighten 

    Tighten the nut to 47.5 N.m (35 lb ft).

  7. Lower the vehicle.
  8. Evacuate and recharge the system. Refer to REFRIGERANT RECOVERY AND RECHARGING .
  9. Leak test the fitting(s) of the repaired or reinstalled component using the J 39400-A. 
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