What are the inspection methods for the water temperature gauge and its control circuit?

1 Answers
VonBenjamin
07/29/25 1:29pm
The inspection methods for the water temperature gauge and its control circuit are: 1. Replace or install the thermostat; 2. Replace the fan; 3. Replace the thermal switch; 4. Replace the fuse and check the circuit; 5. Clean the radiator tubes and fins. The normal range for the water temperature gauge is between 70 to 90 degrees Celsius, and its function is to indicate the temperature of the coolant in the radiator when the engine is operating. The engine requires a certain operating temperature for normal operation, and temperatures that are too high or too low are detrimental to the engine's performance and normal operation. The reasons for excessively high water temperature gauge readings are: 1. Insufficient coolant due to fluid loss or leakage; 2. Abnormal heat dissipation caused by a faulty cooling fan; 3. Abnormal circulation and heat dissipation due to a faulty water pump; 4. Engine malfunction and cooling system failures. The reasons for excessively low water temperature gauge readings are: 1. Damaged thermostat; 2. Cooling fan running continuously.
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