FixVault

Coolant Temperature Sensor Inspection

Remove sensor and immerse in water. Using ohmmeter, check resistance while increasing water temperature. See COOLANT TEMPERATURE RESISTANCE SPECIFICATIONS  . Replace sensor if resistance measured is not within specification.

COOLANT TEMPERATURE RESISTANCE SPECIFICATIONS

Water Temperature °F (°C) Ohms
32 (0) 5900
68 (20) 2500
104 (40) 1100
176 (80) 300