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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> External Pages >> Different car >> Section 412 (Engine Cooling System) >> Repair Instructions >> Surge Tank Hose/Pipe Replacement - Outlet (4.8L, 5.3L, and 6.0L Engines) >> Removal Procedure

Removal Procedure

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    Fig 1: View Of Air Cleaner Outlet Duct
    GM832066Courtesy of GENERAL MOTORS CORP.
  1. Drain the cooling system. Refer to Draining and Filling Cooling System .
  2. Loosen the air cleaner outlet duct clamps at the following locations:
    • Throttle body
    • Mass airflow/intake air temperature (MAF/IAT) sensor
  3. Remove the air cleaner outlet duct.
    4. Fig 2: View Of Surge Tank/Heater Outlet Hose To Mounting Clip (W/O RPO C36)
    GM659127Courtesy of GENERAL MOTORS CORP.
  4. If equipped without regular production option (RPO) C36 auxiliary heater, remove the surge tank/heater outlet hose (1) from the mounting clip.
    5. Fig 3: View Of Surge Tank/Heater Outlet Hose To Mounting Clip (W/ RPO C36)
    GM688023Courtesy of GENERAL MOTORS CORP.
  5. If equipped with RPO C36 auxiliary heater, remove the surge tank/heater outlet hose (1) from the mounting clip.
    6. Fig 4: Identifying Heater Hose To Heater Core Fittings
    GM362171Courtesy of GENERAL MOTORS CORP.
  6. Install the J 43181  to the surge tank outlet hose (black connector). See Special Tools and Equipment .
  7. Close the J 43181  around the surge tank outlet hose. See Special Tools and Equipment .
  8. Firmly pull the J 43181  into the quick connect end of the outlet hose. See Special Tools and Equipment .
    9. Fig 5: View Of Outlet Hose To Heater & Blower Module (W/O RPO C36)
    GM687495Courtesy of GENERAL MOTORS CORP.
  9. If equipped without RPO C36 auxiliary heater, firmly grasp the outlet hose. Pull the outlet hose in order to disengage the hose from the heater and blower module.
    10. Fig 6: View Of Outlet Hose To Heater & Blower Module (W/ RPO C36)
    GM687496Courtesy of GENERAL MOTORS CORP.
  10. If equipped with RPO C36 auxiliary heater, firmly grasp the outlet hose. Pull the outlet hose in order to disengage the hose from the heater and blower module.
    11. Fig 7: View Of Surge Tank Outlet Hose & Surge Tank
    GM659059Courtesy of GENERAL MOTORS CORP.
  11. Reposition the surge tank outlet hose clamp at the surge tank.
  12. Remove the surge tank outlet hose (2) from the surge tank.
    13. Fig 8: View Of Surge Tank Outlet Hose To Water Pump
    GM659180Courtesy of GENERAL MOTORS CORP.
  13. Reposition the surge tank outlet hose clamp at the water pump.
  14. Remove the surge tank outlet hose from the water pump.
  15. Remove the surge tank outlet hose.
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