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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.
    Fig 1: Identifying Coolant Pipe/Thermostat Housing Bolts
    GM1538811Courtesy of GENERAL MOTORS CORP.
  1. 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) .
  2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  3. Remove the radiator outlet hose from the radiator outlet pipe. Refer to Radiator Outlet Hose Replacement (L26)  or Radiator Outlet Hose Replacement (LY7)  or Radiator Outlet Hose Replacement (LS4) .
  4. Remove the radiator outlet pipe bracket to transmission retaining bolt (3).
  5. Remove the radiator outlet pipe bracket to thermostat housing retaining bolt (1).
  6. Remove the radiator outlet pipe from the thermostat housing.
    7. IMPORTANT: Install a new O-ring to the radiator outlet pipe.
  7. Remove the radiator outlet pipe O-ring from the radiator outlet pipe.
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