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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 (Utility LR4, LM7, LQ4) >> Installation Procedure

Installation Procedure

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  1. Install the outlet heater hose.
    Fig 1: Installing Outlet Heater Hose
    G01454308Courtesy of GENERAL MOTORS CORP.
  2. Install the outlet heater hose to the water pump.
  3. Install the outlet heater hose to the surge tank.
  4. Install the outlet heater hose clamp to the surge tank.
    Fig 2: Installing Outlet Heater Hose To Water Pump
    G01454309Courtesy of GENERAL MOTORS CORP.
  5. Connect the heater and surge tank hoses to the heater core.

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

  6. Pull the heater outlet hose to ensure the connection.
  7. Install the heater and surge tank hoses to the mounting clip.
  8. Install the air intake tube.
  9. Fill the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM in Engine Cooling.
    Fig 3: Connecting Heater & Surge Tank Hoses To Heater Core
    G01454310Courtesy of GENERAL MOTORS CORP.
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