Buick Roadmaster 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 Buick Roadmaster Coolant Temperature Switch (Sensor) Replacement is $116 with $21 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1995 Buick RoadmasterV8-5.7LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$157.43Shop/Dealer Price$178.04 - $217.37
1993 Buick RoadmasterV8-5.7LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$137.43Shop/Dealer Price$158.06 - $197.40
1991 Buick RoadmasterV8-5.0LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$137.43Shop/Dealer Price$158.06 - $197.40
1996 Buick RoadmasterV8-5.7LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$137.43Shop/Dealer Price$158.04 - $197.36
1992 Buick RoadmasterV8-5.7LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$137.43Shop/Dealer Price$158.07 - $197.43
1994 Buick RoadmasterV8-5.7LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$137.43Shop/Dealer Price$158.06 - $197.40
Show example Buick Roadmaster 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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Excellent Rating

(34)

Rating Summary
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30
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Allen

36 years of experience
471 reviews
Allen
36 years of experience
Buick Roadmaster V8-5.7L - Fuel Pump - Maitland, Florida
Allen is not only fair, honest, extremely hard-working and friendly, he continually exceeds my expectations of what I could hope for in a mechanic. By talents bordering on magical, he's been able to get my 23-year-old vehicle running as well as it did the day rolled off the assembly line. In short, if you have anything wrong with your car, or just simply just want an honest assessment of your vehicle, do yourself a favor and ask for Allen to do the work!

Casey

16 years of experience
44 reviews
Casey
16 years of experience
Buick Roadmaster V8-5.7L - Oil Change - Humble, Texas
Very professional and quick.

Bryant

12 years of experience
600 reviews
Bryant
12 years of experience
Buick Roadmaster V8-5.7L - Distributor - Indianapolis, Indiana
Experience mechanic!

Trung

12 years of experience
412 reviews
Trung
12 years of experience
Buick Roadmaster V8-5.7L - Inspection Service - Sunnyvale, California
great full for their professional manner.

Excellent Rating

(34)

Rating Summary
30
2
0
1
1
30
2
0
1
1
Number of Buick Roadmaster services completed
374+
services done by our mechanics
TOTAL NUMBER OF EXPERT Buick MECHANICS
800+
experts on our platform

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