What to know about the Coolant Level Sensor:
The coolant level sensor is planned to alert the driver when the coolant level is low and to stop overheating or damage to the engine. This aids in diagnosing leaks and other dangerous cooling system conditions.
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Coolant level sensors can comprise of a plastic sensor with a plastic or foam float that sits underneath the coolant reservoir cap. Or, they can be plastic sensors that plug into the radiator or other element of the cooling system.
Some vehicles are furnished with a Low Coolant or Check Coolant warning light, while others may show a picture of the vehicle with a red dot in the engine bay. This is to notify the driver that the coolant requests to be checked or that there is a fault with the sensor.
Facts to Note:
The Check Coolant warning light may seem like a nuisance, but the system is there for a purpose: to notify the driver of potentially dangerous engine situations.
How to Fix:
The Coolant Level Sensor is confirmed that it needs to be changed. The coolant is drained to be below the sensor.
The defective Coolant Level Sensor is detached by disconnecting the electrical connection and removing it from the radiator or reservoir.
The new Coolant Level Sensor is fixed, connected and the coolant is refilled. Then the cooling system is purged of air.
The Coolant Level Sensor is tested for leaks after system is filled and engine is run.
The vehicle is tested to ensure proper operation of the Cooling System
If you suspect the coolant level sensor has failed, have one of your licensed mechanics come to you to analyze the issue and change the part. Your mechanics can determine whether the sensor float is defective, if the sensor itself is bad, or if there is low coolant or a leak in the system.
Common symptoms indicating you may need to change the Coolant Level Sensor:
Check Coolant or Low Coolant light on and displays even when coolant been topped off
Coolant level is low but no warning lights light up
Importance of this service:
While you may wish to ignore the beeping and warning lights in your vehicle, it is vital to get a diagnosis for the problem straightaway before any further harm occurs, including unwanted coolant loss, engine overheating, and other major issues.