Coolant Temperature Switch (Sensor) Replacement at your home or office.

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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.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2008 Chevrolet Malibu $103 $23.32 $79.99 21% $130.82
2013 Hyundai Genesis Coupe $113 $17.37 $95.98 22% $146.37
2007 Dodge Ram 2500 $114 $33.78 $79.99 19% $141.28
2007 Acura TSX $143 $62.68 $79.99 16% $170.18
2012 Mercedes-Benz ML350 $123 $11.44 $111.98 23% $161.94
2010 Chevrolet Corvette $103 $23.32 $79.99 21% $130.82

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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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Recent Coolant Temperature Switch (Sensor) Replacement reviews

Excellent Rating

(267)

Rating Summary
246
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4
9
246
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4
9

Augustine

12 years of experience
118 reviews
Augustine
12 years of experience
BMW X1 L4-2.0L Turbo - Coolant Temperature Switch (Sensor) - Albuquerque, New Mexico
Augustine was very helpful and transparent. He is very knowledgeable and he got the job done. I am very happy.
Pontiac Grand Prix - Coolant Temperature Switch (Sensor) - Albuquerque, New Mexico
He arrived early for the appointment. He was friendly yet professional. He completed the repair, provided the replaced part and advised about future services needed. This was the first time I have used YourMechanic and I will more than likely used it again. I liked the convenience of the home service.

Jason

32 years of experience
398 reviews
Jason
32 years of experience
Volkswagen Golf L4-1.8L Turbo - Coolant Temperature Switch (Sensor) - San Jose, California
Jason is knowledgeable and willing to explain any issues he sees prior to doing any work. His truck is equipped with all the needed parts and fluids and he works very meticulous and clean. Jason's attitude toward the repair is upbeat and he is very efficient. Will use Jason as a go-to mechanic in the future. He was on time and the job was done in the time he said it would be. Great experience.

PETE

22 years of experience
31 reviews
PETE
22 years of experience
Pontiac Grand Prix V8-5.3L - Coolant Temperature Switch (Sensor) - Claymont, Delaware
Pete arrived early!! Was very informative and kind!! He tried to save me money but i was determined to get temp sensor replaced

Chris

22 years of experience
2068 reviews
Chris
22 years of experience
Chevrolet Silverado 1500 V8-5.3L - Coolant Temperature Switch (Sensor) - Murrieta, California
Chris is my go to mechanic, I’ve even told my friends and family about his good work, and are happy with him as well. Thank you!

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