What does a coolant temperature sensor do?

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.

How much does it cost to replace coolant sensor?

The average price for an engine temperature sensor replacement is between $150 and $193. Labor costs are between $82 and $105 while parts are between $66 and $88. Taxes and fees aren’t included in the estimate.

How much does it cost to replace an ambient air temperature sensor?

That sensor may fail over time, and that can cause you some serious engine trouble. To get it fixed, you will pay somewhere between $80 and $270. Labor will usually cost about $80-$120, but it can be much more expensive with some cars. The cost of parts can be as little as $6 but go up to $100, in some cases.

What is the correct way to check a coolant temperature sensor?

If your vehicle won’t start when cold, the easiest way to check the engine coolant temperature sensor is to depress the gas pedal while cranking the engine. If it starts, that’s a pretty good sign the sensor is off.

What does a bad coolant temperature sensor do?

Bad temperature sensor symptoms. The coolant temperature sensor in an automobile is responsible for relaying engine temperature by measuring the temperature of engine coolant to the car’s on-board computer. When this sensor malfunctions the symptoms range from poor engine performance to diminished fuel economy and engine shutdown.

What is the purpose of a coolant temperature sensor?

Coolant Sensor Purpose. The coolant sensor is basically a thermometer that reports the internal engine temperature to the engine’s control computer. Information from the sensor is used by the computer to make adjustments to the fuel injection system, ignition timing and other engine components.

Where do I find the coolant temperature sensor?

Coolant Temperature Sensor: How do you test a coolant temperature sensor? Find the coolant temperature sensor. You need to find where the coolant temperature sensor is located. Connect your volt ohm meter. To test your coolant temperature sensor, you can use a digital volt ohm meter. Run the engine and check the readings.