Chevrolet K20 Suburban 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 Chevrolet K20 Suburban Coolant Temperature Switch (Sensor) Replacement is $109 with $14 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1983 Chevrolet K20 SuburbanV8-5.7LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$142.65Shop/Dealer Price$159.57 - $187.81
1985 Chevrolet K20 SuburbanV8-7.4LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$122.25Shop/Dealer Price$139.08 - $167.04
1971 Chevrolet K20 SuburbanV8-5.7LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$179.87Shop/Dealer Price$211.11 - $282.28
1979 Chevrolet K20 SuburbanV8-5.7LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$179.87Shop/Dealer Price$211.09 - $282.24
1969 Chevrolet K20 SuburbanL6-4.8LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$179.87Shop/Dealer Price$211.12 - $282.31
1986 Chevrolet K20 SuburbanV8-6.2L DieselService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$122.25Shop/Dealer Price$139.08 - $167.04
1982 Chevrolet K20 SuburbanV8-6.2L DieselService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$149.33Shop/Dealer Price$171.55 - $215.96
1981 Chevrolet K20 SuburbanV8-5.7LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$149.33Shop/Dealer Price$171.92 - $216.62
Show example Chevrolet K20 Suburban 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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Scott

36 years of experience
913 reviews
Scott
36 years of experience
Chevrolet K20 Suburban V8-6.6L - Car is not starting - Apache Junction, Arizona
Scott was very knowledgeable, explained everything and patiently answered all my questions,

Bryan

5 years of experience
64 reviews
Bryan
5 years of experience
Chevrolet Camaro V8-5.0L - Coolant Temperature Switch (Sensor) - Inglewood, California
appreciate the work 

Cody

8 years of experience
99 reviews
Cody
8 years of experience
Chevrolet Tahoe V8-5.7L - Coolant Temperature Switch (Sensor) - Hurst, Texas
Very nice and efficient. Professional all the way. Will definitely book again

Claud

8 years of experience
507 reviews
Claud
8 years of experience
Chevrolet Corvette V8-5.7L - Coolant Temperature Switch (Sensor) - Royal Oak, Michigan
Claud did a great job

Excellent Rating

(45)

Rating Summary
43
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1
43
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Number of Chevrolet Coolant Temperature Switch (Sensor) Replacement services completed
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