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Coolant Temperature Sensor

  1. Warm engine to normal operating temperature and stop engine. Using a thermometer, measure temperature of coola nt. Disconnect electrical connector from temperature sensor and connect 1 lead of ohmmeter to terminal in sensor and other lead to ground. Ohmmeter readings should be as specified in table. If not, replace temperature sensor.
TEMPERATURE/RESISTANCE RELATIONSHIP

Temperature Ohms
14°F (-10°C) 7,000-12,000
68°F (20°C) 2,000-3,000
176°F (80°C) 250-400