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HOMESERVICE MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 730 (COOLING SYSTEM)RADIATOR REPLACEMENT
2006 Chevrolet Cobalt SS, 4D Sedan, Standard

Radiator Replacement

2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Radiator Replacement
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the engine coolant (see COOLANT CHECK  ).
  2. Remove the air cleaner (see AIR CLEANER REMOVAL/INSTALLATION ).
  3. Remove the air duct bracket.
    Fig 1: Identifying Air Duct Bracket
    G06429125Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Disconnect the fan motor connectors (A) and the harness clamp (B).
    Fig 2: Identifying Fan Motor Connectors And Harness Clamp
    G06429126Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Remove the radiator brackets.
    Fig 3: Identifying Radiator Brackets
    G06429127Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Raise the vehicle on the lift to full height.
  7. Remove the splash shields (see step 22 under ENGINE REMOVAL ).
  8. Disconnect the engine coolant temperature (ECT) sensor 2 connector (A), and remove the A/C compressor clutch connector (B) from the clamp.
    Fig 4: Identifying Engine Coolant Temperature (ECT) Sensor 2 Connector And A/C Compressor Clutch Connector
    G06429128Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. Remove the harness clamps (C).
  10. Disconnect the lower radiator hose (A).
    Fig 5: Identifying Lower Radiator Hose And CVT Fluid (CVTF) Cooler Hoses
    G06429129Courtesy of AMERICAN HONDA MOTOR CO., INC.
  11. Remove the CVT fluid (CVTF) cooler hoses (B), then plug the hose and line.
  12. Lower the vehicle on the lift.
  13. Remove the upper radiator hose.
    Fig 6: Identifying Upper Radiator Hose
    G06429130Courtesy of AMERICAN HONDA MOTOR CO., INC.
  14. Pull up the radiator (A), then remove the coolant reservoir (B), the radiator fan shroud assembly (C), the A/C condenser fan shroud assembly (D), the radiator cap (E), the ECT sensor 2 (F), and the drain plug (G).
    Fig 7: Radiator, Coolant Reservoir With Radiator Fan Shroud Assembly With Torque Specifications
    G06429131Courtesy of AMERICAN HONDA MOTOR CO., INC.
  15. Reassemble the radiator with new O-rings (H).
  16. Install the radiator. Make sure the lower cushions (I) are set securely.
  17. Install the upper radiator hose.
    Fig 8: Identifying Upper Radiator Hose
    G06429132Courtesy of AMERICAN HONDA MOTOR CO., INC.
  18. Raise the vehicle on the lift to full height.
  19. Install the lower radiator hose (A).
    Fig 9: Identifying Lower Radiator Hose And CVTF Cooler Hoses
    G06429133Courtesy of AMERICAN HONDA MOTOR CO., INC.
  20. Install the CVTF cooler hoses (B).
  21. Connect the ECT sensor 2 connector (A), and install the A/C compressor clutch connector (B) to the clamp.
    Fig 10: Identifying ECT Sensor 2 Connector And A/C Compressor Clutch Connector
    G06429134Courtesy of AMERICAN HONDA MOTOR CO., INC.
  22. Install the harness clamps (C).
  23. Install the splash shields (see step 29 under ENGINE INSTALLATION .
  24. Lower the vehicle on the lift.
  25. Install the radiator brackets.
    Fig 11: Radiator Brackets With Torque Specifications
    G06429135Courtesy of AMERICAN HONDA MOTOR CO., INC.
  26. Connect the fan motor connectors (A) and the harness clamp (B).
    Fig 12: Identifying Fan Motor Connectors And Harness Clamp
    G06429136Courtesy of AMERICAN HONDA MOTOR CO., INC.
  27. Install the air duct bracket.
    Fig 13: Air Duct Bracket With Torque Specifications
    G06429137Courtesy of AMERICAN HONDA MOTOR CO., INC.
  28. Install the air cleaner (see AIR CLEANER REMOVAL/INSTALLATION ).
  29. Refill the radiator with engine coolant, and bleed the air from the cooling system (see step  9 ).
  30. Clean up any spilled engine coolant.
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.