Coolant Temperature Sensor

Coolant Temperature Sensor Operation:

This sensor monitors the temperature of the engine and sends that information to the engine control computer to regulate the amount of fuel needed. More fuel is needed if the engine is cold; less if it's hot. If the temperature is extreme, the signal will be sent to the temperature gauge as a visual indicator of overheating and imminent danger.

How To Instructions:

Inspect - Check for obvious problems.
Test - Give it an in-depth diagnosis.
Replace - Out with the old, in with the new.

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