GM Service Manual Online
For 1990-2009 cars only

Radiator Outlet Hose Replacement 3.4L

Tools Required

J 38185 Hose Clamp Pliers

Removal Procedure


    Object Number: 455233  Size: SH
  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Use J 38185 in order to reposition the hose clamp from the water pump housing.
  3. Remove the radiator outlet hose (2) from the water pump housing.

  4. Object Number: 455227  Size: SH
  5. Raise and support the vehicle. Refer to in Lifting and Jacking the Vehicle in General Information.
  6. Remove the lower radiator air deflector. Refer to Radiator Air Lower Baffle and Deflector Replacement .
  7. Use the J 38185 in order to reposition the hose clamp from the radiator.
  8. Remove the radiator outlet hose from the radiator and the vehicle.

Installation Procedure


    Object Number: 455227  Size: SH
  1. Align the marks on the hose. Install the outlet hose to the radiator.
  2. Use J 38185 in order to reposition and install the hose clamp to the radiator.
  3. Install the radiator lower air deflector. Refer to Radiator Air Lower Baffle and Deflector Replacement .
  4. Lower the vehicle.

  5. Object Number: 455233  Size: SH
  6. Install the radiator outlet hose to the water pump housing (2).
  7. Use J 38185 in order to reposition and install the hose clamp to the water pump housing.
  8. Fill the cooling system. Refer to Cooling System Draining and Filling .

Radiator Outlet Hose Replacement 3.8L

Tools Required

J 38185 Hose Clamp Pliers

Removal Procedure


    Object Number: 308975  Size: SH
  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Use J 38185 in order to reposition the hose clamp from the water pump housing.
  3. Remove the radiator outlet hose from the water pump housing.

  4. Object Number: 70050  Size: SH
  5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  6. Remove the lower radiator air deflector. Refer to Radiator Air Lower Baffle and Deflector Replacement .
  7. Use the J 38185 in order to reposition the hose clamp from the radiator.
  8. Remove the radiator outlet hose (3) from the radiator and the vehicle.

Installation Procedure


    Object Number: 70050  Size: SH
  1. Install the radiator outlet hose (3) to the radiator.
  2. Use J 38185 in order to reposition and install the hose clamp to the radiator.
  3. Install the lower radiator air deflector. Refer to Radiator Air Lower Baffle and Deflector Replacement .
  4. Lower the vehicle.

  5. Object Number: 308975  Size: SH
  6. Align the marks on the hose. Install the radiator outlet hose to the water pump housing.
  7. Use J 38185 in order to reposition and install the hose clamp to the water pump housing.
  8. Fill the cooling system. Refer to Cooling System Draining and Filling .