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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 52 (Engine Cooling System) >> Repair Instructions >> Radiator 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.
    CAUTION: Refer to Battery Disconnect Caution .
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (L26) or Battery Negative Cable Disconnection and Connection (LY7) or Battery Negative Cable Disconnection and Connection (LS4) .
  2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  3. 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) .
  4. Remove the engine mount struts. Refer to Engine Mount Strut Replacement .
  5. Use J 38185  to reposition the upper radiator hose clamp from the radiator. See Special Tools .
  6. Remove the upper radiator hose from the radiator.
  7. Remove the powertrain control module (PCM) harness clip from the fan shroud.
  8. Remove the condenser tubes bracket bolt from the fan shroud.
  9. Fig 1: Identifying Fan Shroud To Condenser Hold Down Bracket Bolt
    GM1202860Courtesy of GENERAL MOTORS CORP.
  10. Remove the bolt that connects the fan shroud to the condenser hold down bracket.
  11. Remove the condenser hold down bracket from the radiator and condenser.
  12. Fig 2: View Of Cooling Fan Shroud Bolts
    GM1653094Courtesy of GENERAL MOTORS CORP.
  13. Remove the cooling fan shroud bolts.
  14. Remove the coolant reservoir hose from the fan shroud LS4 only.
  15. Remove the radiator vent hose from the right upper radiator tank LS4 only.
  16. Fig 3: View Of Fan Shroud To Radiator Upper Support Brackets
    GM1202856Courtesy of GENERAL MOTORS CORP.
  17. Remove the radiator upper support brackets and bolts that connect to the fan shroud.
  18. Disconnect the engine cooling fan motors electrical connectors.
  19. Remove the cooling fan motors electrical harness from the fan shroud clips.
  20. Remove the cooling fan shroud.
  21. Use J 38185  to reposition the lower radiator hose clamp from the radiator. See Special Tools .
  22. Remove the lower radiator hose from the radiator.
  23. Disconnect the transaxle oil cooler pipes from the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .
  24. Tilt the top of the radiator rearward.
  25. Fig 4: Identifying Condenser Hold Down Bracket & Mount Tabs
    GM1202952Courtesy of GENERAL MOTORS CORP.
  26. Lift the condenser from the mounting tabs on the radiator (2). Position the condenser aside.
  27. Remove the radiator.