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HOMESERVICE MANUALSBUICK2006TERRAZA CXL, 3.5 L, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 204 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSRADIATOR REPLACEMENTREMOVAL PROCEDURE
2006 Buick Terraza CXL, 3.5 L, AWD

Removal Procedure

2006 Buick Terraza CXL, 3.5 L, AWDSECTION Removal Procedure
WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Before servicing any electrical component, the ignition key must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (RPOs LZE/LZ4/LZ9) or Battery Negative Cable Disconnect/Connect Procedure (RPO LS4) .
  2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement for the 3.5L engine or to Air Cleaner Assembly Replacement for the 3.9L engine or to Air Cleaner Assembly Replacement for the 5.3L engine.
  3. Drain the cooling system. Refer to Draining and Filling Cooling System (LS4 Static Fill)  or Draining and Filling Cooling System (LZE, LZ4, LZ9 Static Fill)  or Draining and Filling Cooling System (9C1, 9C3 Static Fill)  or Draining and Filling Cooling System (LS4 GE 47716 Fill)  or Draining and Filling Cooling System (LZE, LZ4, LZ9, 9C1, 9C3 GE 4771 Fill) .
  4. Remove the engine mount struts. Refer to Engine Mount Strut Replacement for the 3.5L engine or to Engine Mount Strut Replacement for the 3.9L engine or to Engine Mount Strut Replacement for the 5.3L engine.
  5. Use J 38185  to reposition the upper radiator hose clamp from the radiator.
  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.
  9. Remove the bolt that connects the fan shroud to the condenser hold down bracket.
  10. Remove the condenser hold down bracket from the radiator and condenser.
    11. Fig 2: Cooling Fan Shroud Bolts
    GM1653094Courtesy of GENERAL MOTORS CORP.
  11. Remove the cooling fan shroud bolts.
  12. Remove the coolant reservoir hose from the fan shroud LS4 only.
  13. Remove the radiator vent hose from the right upper radiator tank LS4 only.
    14. Fig 3: View Of Fan Shroud To Radiator Upper Support Brackets
    GM1202856Courtesy of GENERAL MOTORS CORP.
  14. Remove the radiator upper support brackets and bolts that connect to the fan shroud.
  15. Disconnect the engine cooling fan motors electrical connectors.
  16. Remove the cooling fan motors electrical harness from the fan shroud clips.
  17. Remove the cooling fan shroud.
  18. Use J 38185  to reposition the lower radiator hose clamp from the radiator.
  19. Remove the lower radiator hose from the radiator.
  20. Disconnect the transaxle oil cooler pipes from the radiator. Refer to Transmission Fluid Cooler Line Quick Connect Fitting .
  21. Tilt the top of the radiator rearward.
    22. Fig 4: Condenser Hold Down Bracket & Mount Tabs
    GM1202952Courtesy of GENERAL MOTORS CORP.
  22. Lift the condenser from the mounting tabs on the radiator (2). Position the condenser aside.
  23. Remove the radiator.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.