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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 L18) >> Removal Procedure

Removal Procedure

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  1. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM in Engine Cooling.
  2. Remove the air intake tube.
  3. Remove the heater and surge tank hose from the mounting clip.
  4. Using the J 43181  disconnect the heater hoses from the heater core outlet.
    1. Install the J 43181  to the heater core pipe.
    2. Close the tool around the heater core pipe.
    3. Firmly pull the tool into the quick connect end of the heater hose.
    4. Firmly grasp the heater hose. Pull the heater hose forward in order to disengage the hose from the heater core.
    Fig 1: Disconnecting Heater Hoses From Heater Core Outlet Using J 43181
    G01454311Courtesy of GENERAL MOTORS CORP.
  5. Remove the outlet heater hose from the radiator.
  6. Remove the outlet heater hose (1).
    Fig 2: Removing Outlet Heater Hose From Radiator
    G01454312Courtesy of GENERAL MOTORS CORP.
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