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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 819 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Heater Hose Replacement - Inlet (Utility LR4, LM7, LQ4) >> Installation Procedure

Installation Procedure

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  1. Install the inlet heater hose.
    Fig 1: Installing Inlet Heater Hose
    G01454287Courtesy of GENERAL MOTORS CORP.
  2. Install the inlet heater hose to the water pump.
    Fig 2: Installing Inlet Heater Hose To Water Pump
    G01454288Courtesy of GENERAL MOTORS CORP.
  3. Connect the heater hose to the heater core.

    Important:  Firmly push the quick connect onto the heater core pipe until you hear an audible click.

  4. Install the heater and surge tank hoses to the mounting clip.
  5. Install the air intake tube.
  6. Fill the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM in Engine Cooling.
    Fig 3: Connecting Heater Hose To Heater Core
    G01454289Courtesy of GENERAL MOTORS CORP.
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