GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Before you remove the automatic transmission oil cooler lines, provide a container to catch the oil that is drained from the automatic transmission oil cooler and the lines. Do not reuse the drained fluid.

Important: Install a new set of insulators when you replace a radiator. Used insulators may be worn out or too large for the new radiator. These conditions may cause the radiator to be loose.

  1. Tilt the cab. Refer to Cab Tilting in General Information.
  2. Drain the coolant. Refer to Cooling System Draining and Filling .

  3. Object Number: 209225  Size: SH
  4. Remove the radiator outlet hose clamp.
  5. Remove the radiator outlet hose from the radiator.

  6. Object Number: 209213  Size: SH
  7. Disconnect the coolant recovery hose (1) from the radiator.
  8. Position a container to catch the oil that is drained from the automatic transmission cooler and the lines.
  9. Disconnect the transmission oil cooler lines.

  10. Object Number: 209191  Size: SH
  11. Remove the radiator inlet hose clamp.
  12. Remove the radiator inlet hose from the radiator.

  13. Object Number: 209207  Size: SH
  14. Remove the heater hose (1).
  15. Remove the radiator support top cover bolts.
  16. Remove the radiator support top cover.

  17. Object Number: 209210  Size: SH
  18. Remove the radiator (1) from the support (1).
  19. Tilt the radiator.


    Object Number: 209216  Size: SH
  20. Remove the radiator insulators.
  21. Clean the radiator. Refer to Radiator Cleaning .

Installation Procedure


    Object Number: 209216  Size: SH
  1. Install the radiator insulators.

  2. Object Number: 209210  Size: SH
  3. Install the radiator (1) into the support.
  4. Install the radiator support top cover.
  5. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  6. Install the radiator support top cover bolts.
  7. Tighten
    Tighten the radiator bolts to 25 N·m (18 lb ft).

  8. Install the automatic transmission oil cooler lines.
  9. Tighten
    Tighten the transmission oil cooler fittings to 30 N·m (22 lb ft).


    Object Number: 209191  Size: SH
  10. Install the radiator inlet hose.
  11. Tighten
    Tighten the radiator inlet hose clamps to 5.0 N·m (44 lb in).


    Object Number: 209207  Size: SH
  12. Install the heater hose (1).

  13. Object Number: 209213  Size: SH
  14. Connect the coolant recovery hose (1) to the radiator.
  15. Tighten
    Tighten the coolant recovery hose clamp to 3 N·m (27 lb in).


    Object Number: 209225  Size: SH
  16. Install the radiator outlet hose to the radiator.
  17. Tighten
    Tighten the radiator outlet hose clamps to 5.0 N·m (44 lb in).

  18. Install the radiator inlet hose to the radiator.
  19. Tighten
    Tighten the radiator outlet hose clamps to 5.0 N·m (44 lb in).

  20. Fill the cooling system. Refer to Cooling System Draining and Filling .
  21. Fill the automatic transmission to the proper capacity, if equipped. Use new, clean fluid. Refer to Approximate Fluid Capacities .
  22. Inspect the system for leaks.
  23. Lower the cab. Refer to Cab Tilting in General Information.