GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2005 🢒 H2 🢒 Engine 🢒 Engine Cooling 🢒 Radiator Surge Tank Outlet Hose/Pipe Replacement

Tools Required

J 43181 Heater Line Quick Connect Release Tool

Removal Procedure
  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Remove the air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .

    3. Object Number: 362171 Size: SH
  3. Disconnect the heater hose quick connect fitting.
    4. 3.1. Using the J 43181 disconnect the inlet heater hose from the heater core.
    3.2. Install the J 43181 to the heater core outlet pipe.
    3.3. Close the tool around the heater core outlet pipe.
    3.4. Firmly pull the tool into the quick connect end of the heater hose.
    3.5. Firmly grasp the heater hose. Pull the heater hose forward in order to disengage the hose from the heater core.

    Object Number: 814572 Size: SH
  4. Remove the heater hose (3) from the mounting clip (2).

    5. Object Number: 814578 Size: SH
  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. Object Number: 801110 Size: SH
  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.

Installation Procedure

    Object Number: 801110 Size: SH
  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. Reposition the surge tank outlet hose clamp (5) to the surge tank (2).

    4. Object Number: 814578 Size: SH
  4. Install the surge tank outlet hose (6) to the engine (2).
  5. Reposition the surge tank outlet hose clamp (3) to the engine (2).
  6. Connect the heater inlet hose to the heater core.

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

  7. Pull the heater inlet hose to ensure the connection.

    8. Object Number: 814572 Size: SH
  8. Install the heater hose (3) to the mounting clip (2).

    9. Object Number: 362171 Size: SH
  9. Connect the surge tank outlet hose to the heater core outlet pipe.

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

  10. Pull the surge tank outlet hose to ensure the connection.
  11. Install the air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .
  12. Fill the cooling system. Refer to Cooling System Draining and Filling .