Best Prices for Coolant Temperature Switch (Sensor) Replacement

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How much does Coolant Temperature Switch (Sensor) Replacement cost?

It depends on the type of car you drive and the auto repair shop you go to. Our mechanics are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office.

Coolant Temperature Switch (Sensor) Replacement pricing for various cars

CarsEstimateParts CostLabor CostSavingsAverage Dealer Price
2011 Chevrolet Aveo5$189$42.88$145.99-25%$150.38
2009 Chevrolet Impala$192$46.51$145.99-24%$154.01
2015 Jeep Renegade$376$201.29$175.18-13%$330.29
2008 Land Rover Range Rover$336$87.98$248.18-24%$270.73
2011 BMW X6$243$38.67$204.38-28%$189.17
2010 Porsche Cayman$188$42.46$145.99-25%$149.96

Coolant Temperature Switch (Sensor) Replacement Service

What is the Coolant Temperature Switch (Sensor) all about?

The coolant temperature switch, also called the coolant temperature sensor, is a switch that reads the engine coolant temperature and sends a signal to the engine control module, or ECM, to control other functions of engine operation such as the air-fuel ratio.

It is also called a switch because on some cars, it is used to turn on the engine cooling fan at a specific temperature. This aids in the engine warm-up process as well as keeping the engine at a safe operating temperature.

Keep in mind:

  • The coolant temperature switch is a crucial part of the cooling system. If faulty, it can cause severe internal engine damage due to overheating, incorrect air-fuel ratio, or incorrect ignition timing. It can also cause shorter life to the cooling fan motor or other electrical components of the cooling system.
  • Some vehicles are equipped with a separate sensor to display the engine temperature to the driver via the temperature gauge.

How it's done:

  • The Coolant Temperature Switch is verified that it needs to be replaced. The coolant is drained until the switch is exposed.

  • The defective Coolant Temperature Switch is removed by disconnecting the connector and removing it from the manifold.

  • The new Coolant Temperature Switch is installed into the mounting hole in the manifold and the electrical connector is reconnected. The coolant is then refilled.

  • The Coolant Temperature Switch is tested for operation, codes cleared, and retested to ensure all codes have been resolved.

  • The vehicle is road tested to ensure proper operation of the Cooling System.

Our recommendation:

If you suspect that your coolant temperature switch has failed, have one of our licensed mechanics come out immediately to diagnose the problem.

What common symptoms indicate you may need to replace the Coolant Temperature Switch (Sensor)?

  • Check Engine light on
  • Engine overheating
  • Cooling fan runs intermittently
  • Engine misfires, stalls, or idles roughly
  • Erratic coolant temperature

How important is this service?

This part, when faulty, could cause the fan to run intermittently or not at all, which in turns causes overheating or overuse of the cooling fan motor. Whenever overheating occurs, severe engine damage is a possibility.

The engine air-fuel ratio is what keeps it running smoothly. If the ratio gets skewed, the engine will have poor fuel economy and run poorly or not at all. The coolant temperature switch is important because it gives the ECM the information it needs to make this calculation and run the engine optimally. YourMechanic will be able to tell you if this part is performing correctly.

Recent Coolant Temperature Switch (Sensor) Replacement reviews

Excellent Rating


Rating Summary


8 years of experience
12 reviews
8 years of experience
GMC Canyon L5-3.7L - Coolant Temperature Switch (Sensor) - Burleson, Texas
Very nice friendly man. I was outside watching cause I like to see what's going on for future reference, if I had any questions he gladly answered them. Took a few hours to do the job but he was thorough truck's running good!


5 years of experience
91 reviews
5 years of experience
Chrysler 200 L4-2.4L - Coolant Temperature Switch (Sensor) - Atlanta, Georgia
Where can i start. This guy at this point is the one and only reason why I’m still using this app! He knows exactly what’s going on and Isn’t here to make money off of you he is here to help you get back on the road. I don’t know about others in the atl area but i can only use Jared at this point.


49 years of experience
147 reviews
49 years of experience
Jeep Grand Cherokee V6-3.6L - Coolant Temperature Switch (Sensor) - Jupiter, Florida
This is the second job Rohon has done on my car and each time he got the job done professionally, efficiently and solved the problem the first time. I will be happy to have him work on my car again.


14 years of experience
691 reviews
14 years of experience
GMC Acadia V6-3.6L - Coolant Temperature Switch (Sensor) - Saint Paul, Minnesota
Travis is a good an knowledgeable person he was very friendly and a good conversationalist I love the work he did on my vehicle  

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