Jaguar XJ12 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 Jaguar XJ12 Coolant Temperature Switch (Sensor) Replacement is $113 with $18 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1979 Jaguar XJ12V12-5.3LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$228.01Shop/Dealer Price$281.27 - $384.79
1989 Jaguar XJ12V12-5.3LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$131.47Shop/Dealer Price$165.64 - $211.78
1991 Jaguar XJ12V12-5.3LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$131.47Shop/Dealer Price$165.63 - $211.78
1982 Jaguar XJ12V12-5.3LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$131.47Shop/Dealer Price$165.58 - $211.68
1994 Jaguar XJ12V12-6.0LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$176.37Shop/Dealer Price$221.80 - $301.65
1983 Jaguar XJ12V12-5.3LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$131.47Shop/Dealer Price$165.63 - $211.78
1996 Jaguar XJ12V12-6.0LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$202.25Shop/Dealer Price$252.52 - $347.74
1986 Jaguar XJ12V12-5.3LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$136.47Shop/Dealer Price$171.23 - $217.81
Show example Jaguar XJ12 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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Real customer reviews from Jaguar owners like you.

Excellent Rating

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Rating Summary
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Alfredo

21 years of experience
123 reviews
Alfredo
21 years of experience
Jaguar XJ12 V12-6.0L - Car is not starting - Orlando, Florida
Alfredo is great.

Kerry

31 years of experience
27 reviews
Kerry
31 years of experience
Jaguar XJ12 V12-6.0L - Car is not starting - Snellville, Georgia
He was on time and very knowledgeable of my car. Very friendly. Would use him again. Thanks so much, car is running fine.

John

27 years of experience
1027 reviews
John
27 years of experience
Jaguar XJS V12-5.3L - Coolant Temperature Switch (Sensor) - Houston, Texas
John is great. He is friendly and did a perfect job using the parts I provided. A lot of shop mechanics will not work on my car, but to John it was absolutely no problem.

Peter

43 years of experience
1321 reviews
Peter
43 years of experience
Jaguar Vanden Plas V8-4.2L - Coolant Temperature Switch (Sensor) - Peoria, Arizona
He is best mechanic I’ve had in a while. Very knowledgeable on vehicles and his personality is awesome . He has been out several times. Definitely will use them again.

Excellent Rating

(2)

Rating Summary
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Number of Jaguar Coolant Temperature Switch (Sensor) Replacement services completed
22+
services done by our mechanics
TOTAL NUMBER OF EXPERT Jaguar MECHANICS
400+
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