What is a coolant temperature sensor?
A coolant temperature sensor (CTS) (also known as an ECT sensor or ECTS (engine coolant temperature sensor) is used to measure the temperature of the coolant/antifreeze mix in the cooling system, giving an indication of how much heat the engine is giving off.
What does it mean when your engine coolant temperature light comes on?
When the coolant temperature warning light goes on, the engine is seriously overheated, which can be caused by overheating, lack of cooling water or a cooling system that is having trouble. When you have cooled down, turn off the engine and you can check the cooling water to see if the water is at risk of leakage.
What should I do if my engine coolant light comes on?
The most common reason for the coolant light to become illuminated is simply that the coolant level is too low. There may be a floating sensor in your coolant tank that triggers the warning light when the level drops. You may need to book a coolant change.
What do you do when your coolant light comes on?
When the low coolant level warning light comes on, you should stop driving. Pull over to the side as soon as possible and shut off the engine to prevent any additional damage. Here are some reasons why the low coolant light can appear.
Is it dangerous to drive with coolant light on?
So, can you drive safely with your Coolant Pressure Light on? The short answer is that it probably won’t get you killed, but it could mean death to your car engine. An overheated engine can cause incredible damage – failed head gaskets, damaged pistons and valve stems, and distortion or cracks in the cylinder heads.
How long can you drive when coolant light comes on?
But it depends on the level of the coolant. If the coolant is low but above the minimum mark, then you are still fine to run the car for a few days, but if the coolant is below the minimum mark, please do not even try to drive your car like that so you don’t knock your engine. You need to top up the coolant.