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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 14 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Heater Pipes Replacement (LS4) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  2. Drain the cooling system. Refer to Cooling System Draining and Filling (L26, LY7 GE 47716 Fill) or Cooling System Draining and Filling (L26 Static Fill) or Cooling System Draining and Filling (LY7 Static Fill) or Cooling System Draining and Filling (LS4 GE47716 Fill) or Cooling System Draining and Filling (LS4 Static Fill) .
    3. Fig 1: View Of Heater Hoses & Clamps
    GM1524231Courtesy of GENERAL MOTORS CORP.
  3. Release and reposition the heater inlet and outlet hose clamps using the J 38185  .
    4. IMPORTANT: Cap or plug the cooling components to prevent system contamination.
  4. Remove the heater hoses from heater pipes.
    5. NOTE: Do not apply excessive force on the heater core pipes during hose removal. Applying excessive force on the heater core pipes may damage the heater core pipes.
    Fig 2: View Of Heater Core Pipes
    GM1524232Courtesy of GENERAL MOTORS CORP.
  5. Remove the heater pipe assembly retaining bolts from the rear the of engine.
    6. Fig 3: View Of Heater Pipe Assembly
    GM1524235Courtesy of GENERAL MOTORS CORP.
  6. Remove the heater pipe assembly retaining bolt from the front of the engine.
  7. Release and reposition the heater pipe hose clamps at the engine using the J 38185  .
  8. Remove the heater pipe hoses from the engine.
  9. Remove the heater pipe assembly from the vehicle.
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