GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 TrailBlazer - 4WD 🢒 Engine 🢒 Engine Cooling 🢒 Radiator Replacement

Radiator Replacement LL8

Special Tools

J 38185 Hose Clamp Pliers

Removal Procedure
  1. Drain the coolant from the radiator. Refer to Cooling System Draining and Filling.
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
  3. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
  4. Remove the lower radiator support shield, if equipped. Refer to Radiator Support Shield Replacement.

    5. Object Number: 750179 Size: SH
  5. Reposition the outlet radiator hose clamp using J 38185 from the lower radiator hose (1).
  6. Remove the outlet radiator hose from the radiator.

    7. Object Number: 753673 Size: SH
  7. Reposition the inlet radiator hose clamps (1) and remove hose (2).
  8. Remove the transmission cooler lines from the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection.
  9. Lower the vehicle.
  10. Remove the cooling fan and shroud. Refer to Cooling Fan and Shroud Replacement.
  11. Remove the radiator support diagonal brace. Refer to Radiator Support Diagonal Brace Replacement.
  12. Remove the coolant recovery line from the radiator.

    13. Object Number: 753683 Size: SH
  13. Disconnect the radiator side panels from the shroud (1).
  14. Remove the radiator.
  15. Remove the bolts retaining the condenser to the radiator.

Installation Procedure
  1. Install the condenser to the radiator.

    2. Caution: Refer to Fastener Caution in the Preface section.

  2. Install the bolts retaining the condenser to the radiator and tighten to 28 N·m (21 lb ft).

    3. Object Number: 753683 Size: SH
  3. Install the radiator.
  4. Install the cooling fan and shroud (1). Refer to Cooling Fan and Shroud Replacement.
  5. Raise the vehicle.

    6. Object Number: 750179 Size: SH
  6. Install the outlet radiator hose (1) to the radiator.

    7. Object Number: 753673 Size: SH
  7. Reposition the outlet radiator hose clamp (1) using J 38185 .
  8. Connect the transmission cooler lines to the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection.
  9. Install the lower radiator support shield, if equipped. Refer to Radiator Support Shield Replacement.
  10. Lower the vehicle.
  11. Install the coolant recovery hose to the radiator.
  12. Install the radiator support diagonal brace. Refer to Radiator Support Diagonal Brace Replacement.
  13. Fill the cooling system. Refer to Cooling System Draining and Filling.

Radiator Replacement LH6, LS2

Special Tools

    • J 41240 Fan Clutch Remover and Installer
    • J 38185 Hose Clamp Pliers

Removal Procedure
  1. Drain the coolant from the radiator. Refer to Cooling System Draining and Filling.
  2. Remove the lower radiator support shield, if equipped. Refer to Radiator Support Shield Replacement.

    3. Object Number: 750179 Size: SH
  3. Remove the transmission cooler lines from the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection for the 4L60-E/4L65-E transmission.
  4. Reposition the outlet radiator hose clamp using J 38185 .
  5. Remove the outlet radiator hose (1) from the radiator.
  6. Lower the vehicle.

    7. Object Number: 1670247 Size: SH
  7. Reposition the inlet radiator hose clamp using J 38185 .
  8. Remove the inlet radiator hose from the radiator.
  9. Remove the cooling fan and shroud. Refer to Cooling Fan and Shroud Replacement.
  10. Remove the air inlet grille. Refer to Air Inlet Grille Panel Replacement.

    11. Object Number: 1670240 Size: SH
  11. Remove the coolant recovery line from the radiator.

    12. Object Number: 1670513 Size: SH
  12. Remove the upper radiator to condenser bolts.
  13. Lift upward on the condenser to remove from the radiator retaining tab.
  14. Remove the radiator.

Installation Procedure

    Object Number: 1670513 Size: SH
  1. Install the radiator.
  2. Install the condenser to the radiator retaining tab.

    3. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the bolts retaining the condenser to the radiator.

    4. Tighten
    Tighten the bolts to 28 N·m (21 lb ft).


    Object Number: 1670240 Size: SH
  4. Install the coolant recovery line to the radiator.
  5. Install the air inlet grille. Refer to Air Inlet Grille Panel Replacement.
  6. Install the cooling fan and shroud. Refer to Cooling Fan and Shroud Replacement.

    7. Object Number: 1670247 Size: SH
  7. Install the inlet radiator hose to the radiator.
  8. Reposition the inlet radiator hose clamp using J 38185 .
  9. Raise the vehicle.

    10. Object Number: 750179 Size: SH
  10. Install the outlet radiator hose (1) to the radiator.
  11. Reposition the outlet radiator hose clamp (1) using J 38185 .
  12. Connect the transmission cooler lines to the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection for the 4L60-E/4L65-E transmission.
  13. Install the lower radiator support shield, if equipped. Refer to Radiator Support Shield Replacement.
  14. Lower the vehicle.
  15. Fill the cooling system. Refer to Cooling System Draining and Filling.