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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 - Outlet (Avalanche/Xlt LR4, LM7, LQ4) >> Installation Procedure

Installation Procedure

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  1. Install the outlet heater hose.
    Fig 1: Installing Outlet Heater Hose
    G01454318Courtesy of GENERAL MOTORS CORP.
  2. Install the outlet heater hose to the engine.
  3. Connect the outlet heater hose to the heater core.

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

  4. Install the heater and surge tank hose 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 2: Installing Outlet Heater Hose To Engine
    G01454319Courtesy of GENERAL MOTORS CORP.
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