12. COOLING SYSTEM MXU 300/250 THERMOSENSOR THERMOSENSOR REMOVAL Drain the coolant. (page 12-7) Disconnect the thermosensor wire. Remove the thermosensor from the thermostat. Thermosensor Thermosensor Connectsor THERMOSENSOR INSPECTION Thermosensor Suspend the thermosensor in a pan of water over a burner and measure the resistance through the sensor as the water heats up. Temperature() 50 80 100 120 Resistance() 154 52 27 16 THERMOSENSOR INSTALLATION Apply 3-BOND No. 1212 sealant or equivalent to the thermosensor threads and install it into the thermostat housing. Connect the thermosensor wire. Fill the radiator with coolant. (page 12-7) Be sure to bleed air from the cooling system. 12-13