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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 >> Heater Pipe Replacement - Auxiliary Rear >> Installation Procedure

Installation Procedure

  1. Install the auxiliary heater rear pipes.
    Fig 1: Installing Heater Pipe - Auxiliary Rear
    G01645660Courtesy of GENERAL MOTORS CORP.
  2. Install the pipe retainers to the body.
  3. Connect the auxiliary heater rear pipes to the front pipes.
  4. Connect the rear pipes to the auxiliary heater core inlet and outlet tubes.
  5. Refill the cooling system with engine coolant. Refer to DRAINING AND FILLING COOLING SYSTEM in Engine Cooling.
  6. Lower the vehicle.
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