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Coolant Temperature Sensor

Using a DVOM, measure resistance between coolant temperature sensor terminals. Coolant temperature sensor is located on right side of engine next to water inlet housing. See COOLANT TEMPERATURE SENSOR RESISTANCE  table. If coolant temperature sensor is not within specification, replace sensor.

COOLANT TEMPERATURE SENSOR RESISTANCE

Temperature Ohms
-4 (-20) 10,000-20,000
32 (0) 4000-7000
68 (20) 2000-3000
104 (40) 900-1300
140 (60) 400-700
176 (80) 200-400