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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating, Ventilation, And Air Conditioning >> Repair Instructions >> Heater Outlet Hose Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Surge Tank Components
    GM801110Courtesy of GENERAL MOTORS CORP.
  1. Install the surge tank outlet hose (3) to the vehicle.
  2. Install the surge tank outlet hose (3) to the surge tank (2).
  3. Install the surge tank outlet hose clamp (5) to the surge tank (2).
    4. Fig 2: Surge Tank Hose & Engine (Outlet)
    GM814578Courtesy of GENERAL MOTORS CORP.
  4. Install the surge tank outlet hose (6) to the engine (2).
  5. Install the surge tank outlet hose clamp (3) to the engine (2).
  6. Install the surge tank outlet hose to the mounting clip.
    7. Fig 3: Heater Hose & Mounting Clip
    GM814572Courtesy of GENERAL MOTORS CORP.
  7. Install the surge tank outlet hose (3) to the mounting clip (2).
    8. Fig 4: Identifying Heater Hose To Heater Core Fittings
    GM362171Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Firmly push the quick connect onto the heater core pipe until you hear an audible click.
  8. Install the surge tank outlet hose to the heater core outlet pipe.
  9. Pull the surge tank outlet hose to ensure the connection.
  10. Install the heater inlet hose to the heater core.
    IMPORTANT: Firmly push the quick connect onto the heater core pipe until you hear an audible click.
  11. Pull the inlet heater inlet hose to ensure the connection.
  12. Fill the cooling system. Refer to Cooling System Draining and Filling (Static Fill) or Cooling System Draining and Filling (Vac-N-Fill) .
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