GM Service Manual Online
For 1990-2009 cars only

Throttle Body Heater Inlet Hose Replacement 2.5L Engine

Removal Procedure

Caution: To avoid being burned, do not remove the radiator cap or surge tank cap while the engine is hot. The cooling system will release scalding fluid and steam under pressure if radiator cap or surge tank cap is removed while the engine and radiator are still hot.

  1. Drain the engine coolant. Refer to Cooling System Draining and Filling .

  2. Object Number: 721978  Size: SH
  3. Loosen and reposition the hose clamps (1).
  4. Remove the hose (2).

Installation Procedure

  1. Position a new hose clamp on each end of the new hose.

  2. Object Number: 721978  Size: SH
  3. Install the new hose (2) and secure the clamps (1).
  4. Fill the radiator with an approved coolant. Refer to Cooling System Draining and Filling .