What Are the Causes of Low Coolant Temperature?

1 Answers
BradyRose
07/29/25 11:16am
Low coolant temperature can be caused by issues with the temperature gauge and its wiring, a faulty coolant temperature sensor, a thermostat valve stuck open, failure of the shutters to close, malfunctioning thermostatic switches or fan motor circuits leading to constant fan operation, or a faulty silicone fluid clutch in vehicles equipped with such fans. Below are detailed explanations of low coolant temperature: 1. Symptoms: The engine's temperature rises slower than normal during operation; the temperature gauge reads below the normal operating range; the engine lacks power, and there may be backfiring from the exhaust. 2. Actions: Check the coolant level to see if it has significantly decreased, and top it up if necessary. Inspect the coolant for signs of contamination, and if found, flush the cooling system and replace the antifreeze.
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