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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 222 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Heater Hose/Pipe Replacement - Inlet/Outlet >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Inlet/Outlet Heater Hoses/Pipes
    GM1663207Courtesy of GENERAL MOTORS CORP.
  1. Drain the cooling system. Refer to Draining and Filling Cooling System (Static Fill) or Draining and Filling Cooling System (Vac-N-Fill) .
  2. Release the quick connect.
  3. Disconnect the inlet heater hose (1) at the engine.
  4. Disconnect the outlet heater hose (2) at the engine.
    5. Fig 2: Locating Heater Hoses At Heater Core
    GM1663250Courtesy of GENERAL MOTORS CORP.
  5. Using the J 38185  or SA911E hose clamp pliers, disengage the inlet hose clamp at the module.
  6. Using the J 38185  or SA911E hose clamp pliers, disengage the outlet hose clamp at the module.
    7. Fig 3: Engaging/Disengaging Hose Clamp At Module
    GM1663252Courtesy of GENERAL MOTORS CORP.
  7. If equipped with rear air conditioning, disengage the inlet and outlet hose clamps from the rear auxiliary pipes using the J 38185  or SA911E.
  8. Remove the inlet or outlet hose.
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