Removal Procedure
- Drain the cooling system. Refer to Cooling System Draining and Filling
- Remove Heater Outlet Hose Vapor Vent Hose. Refer to Heater Outlet Hose Vapor Vent Hose Replacement
- Remove Radiator Inlet Hose @ Water Outlet. Refer to Radiator Inlet Hose Replacement
Courtesy of GENERAL MOTORS COMPANY
- Loosen Heater Outlet Hose Clamp (2)
- Disconnect Heater Outlet Hose (1)
Courtesy of GENERAL MOTORS COMPANY
- Disconnect the engine coolant temperature sensor electrical connector (3).
- Remove Engine Coolant Temperature Sensor Retainer (4).
- Remove the engine coolant temperature sensor (2).
- Remove and DISCARD the seal (1).