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HomeShopFilter0623464000 | Coolant Temperature Sensor

Description

Description: Coolant Temperature Sensor
Condition: New
Brand: Freightliner
Part Number: 0623464000

About the Coolant Temperature Sensor

The coolant temperature sensor is a crucial component in the engine management system of a vehicle. It is responsible for monitoring the temperature of the engine coolant and providing this information to the engine control unit (ECU). This sensor helps the ECU make necessary adjustments to optimize the engine’s performance and fuel efficiency.

How It Works

The coolant temperature sensor is typically located near the engine’s thermostat housing or in the intake manifold. It consists of a thermistor, which is a resistor that changes its resistance based on temperature. As the temperature of the coolant increases, the resistance of the thermistor decreases, and vice versa.

When the engine is cold, the coolant temperature sensor sends a high resistance signal to the ECU, indicating a low temperature. This prompts the ECU to enrich the air-fuel mixture for easier cold starts. As the engine warms up, the resistance of the sensor decreases, and the ECU adjusts the fuel mixture accordingly for optimal combustion.

Signs of a Faulty Coolant Temperature Sensor

A malfunctioning coolant temperature sensor can cause various issues with the engine’s performance. Some common signs of a faulty sensor include:

  • Inaccurate temperature readings on the dashboard
  • Engine overheating or running too cold
  • Poor fuel efficiency
  • Stalling or rough idling
  • Check Engine Light illuminated

If you experience any of these symptoms, it is advisable to have your coolant temperature sensor checked and replaced if necessary.

In conclusion, the coolant temperature sensor plays a vital role in ensuring the proper functioning of the engine. By accurately monitoring the coolant temperature, it allows the engine control unit to make necessary adjustments for optimal performance and fuel efficiency.

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