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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling >> Repair Instructions >> Radiator Surge Tank Outlet Hose/Pipe Replacement >> Removal Procedure

Removal Procedure

  1. Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill)  or Cooling System Draining and Filling (Vac-N-Fill) .
  2. Remove the air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .
    3. Fig 1: Identifying Heater Hose To Heater Core Fittings
    GM362171Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the heater hose quick connect fitting.
    1. Using the J 43181  disconnect the inlet heater hose from the heater core. See Special Tools .
    2. Install the J 43181  to the heater core outlet pipe. See Special Tools .
    3. Close the tool around the heater core outlet pipe.
    4. Firmly pull the tool into the quick connect end of the heater hose.
    5. Firmly grasp the heater hose. Pull the heater hose forward in order to disengage the hose from the heater core.
    4. Fig 2: Heater Hose & Mounting Clip
    GM814572Courtesy of GENERAL MOTORS CORP.
  4. Remove the heater hose (3) from the mounting clip (2).
    5. Fig 3: Surge Tank Hose & Engine (Outlet)
    GM814578Courtesy of GENERAL MOTORS CORP.
  5. Reposition the surge tank outlet hose clamp (3) from the engine (2).
  6. Remove the surge tank outlet hose (6) from the engine (2).
    7. Fig 4: Surge Tank Components
    GM801110Courtesy of GENERAL MOTORS CORP.
  7. Reposition the surge tank outlet hose clamp (5) from the surge tank (2).
  8. Remove the surge tank outlet hose (3) from the surge tank (2).
  9. Remove the surge tank outlet hose (3) from the vehicle.
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