Mazda RX-8 Coolant Temperature Switch (Sensor) Replacement at your home or office.

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Coolant Temperature Switch (Sensor) Replacement Service

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

On average, the cost for a Mazda RX-8 Coolant Temperature Switch (Sensor) Replacement is $184 with $51 for parts and $133 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2004 Mazda RX-8R2-1.3LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$263.25Shop/Dealer Price$302.81 - $390.01
2009 Mazda RX-8R2-1.3LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$235.25Shop/Dealer Price$274.84 - $362.05
2005 Mazda RX-8R2-1.3LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$235.25Shop/Dealer Price$274.84 - $362.05
2010 Mazda RX-8R2-1.3LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$235.25Shop/Dealer Price$274.80 - $361.99
2007 Mazda RX-8R2-1.3LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$235.25Shop/Dealer Price$274.86 - $362.09
2008 Mazda RX-8R2-1.3LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$235.25Shop/Dealer Price$274.84 - $362.05
2006 Mazda RX-8R2-1.3LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$242.25Shop/Dealer Price$281.65 - $368.72
2011 Mazda RX-8R2-1.3LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$242.25Shop/Dealer Price$282.17 - $369.63
Show example Mazda RX-8 Coolant Temperature Switch (Sensor) Replacement prices

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.

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Rating Summary
92
5
1
1
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92
5
1
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Khoa

20 years of experience
402 reviews
Khoa
20 years of experience
Mazda RX-8 R2-1.3L - Battery is dead - Sunnyvale, California
Battery tender died on my car, came home to a dead battery. Tried to jump it, and nothing. Khoa came, did the inspection, and was able to revive my low battery enough to start.

Ben

41 years of experience
1452 reviews
Ben
41 years of experience
Mazda RX-8 R2-1.3L - Check Engine Light is on - Humble, Texas
Knowledgeable thorough and very friendly. Would like to see him for the repair.

Tom

42 years of experience
205 reviews
Tom
42 years of experience
Mazda RX-8 R2-1.3L - Battery - Sunnyvale, California
Tom was great. He was on time (even calling ahead to let me know he was on the way), came with all the proper tools to do the inspection he needed to do, double-checked both the battery and the alternator, and my car is now charged up and happy. He was just pleasant to work with, clearly knew what he was doing, and was knowledgeable about the car. I would happily pay for his services again!

Oreste

14 years of experience
149 reviews
Oreste
14 years of experience
Mazda RX-8 R2-1.3L - Car is not starting - Hollywood, Florida
Pleasant individual. Base on what I told him was wrong with the car he did his trial an error on number of things to pin point the reason the car wasn’t starting and was spot on with his prediction. Very knowledgeable. And his van he came with was BEYONG EQUIPT with all and everything needed to do ANY JOB on any vehicle with any problem. A+

Excellent Rating

(101)

Rating Summary
92
5
1
1
2
92
5
1
1
2
Number of Mazda RX-8 services completed
1111+
services done by our mechanics
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