Why Cooling Fans Run Constantly Even On A Cold Engine
Cooling fans are designed to operate only when engine temperature requires it.
But what if the cooling fans run continuously, even when the engine is completely cold?
In this video, we break down all possible causes of continuous cooling fan operation, including mechanical, electrical, and sensor-related faults.
You’ll learn how problems such as:
•Low coolant level
•Faulty radiator cap
•Clogged radiator
•Weak water pump
•Stuck thermostat
•Coolant temperature sensor failures
•Fan relay issues
•And even ECU faults
can force the cooling fans to stay on at all times.
This video follows a diagnostic approach, helping you understand not just what fails—but why it fails and how to identify it correctly.
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