FixVault

Coolant Temperature Sensor

  1. Remove coolant temperature sensor, located near thermostat housing (2-wire connector). Place end of sensor in water. Terminal connector portion of sensor should be .12" (3.0 mm) above water.
  2. Gradually heat water and read resistance values across terminal connectors. See COOLANT TEMPERATURE SENSOR RESISTANCE table. If not within specification, replace sensor.
COOLANT TEMPERATURE SENSOR RESISTANCE

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