GMC C1500 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 GMC C1500 Suburban Coolant Temperature Switch (Sensor) Replacement is $119 with $14 for parts and $105 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1995 GMC C1500 SuburbanV8-6.5L Turbo DieselService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$163.57Shop/Dealer Price$181.62 - $216.85
1999 GMC C1500 SuburbanV8-6.5L Turbo DieselService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$143.57Shop/Dealer Price$161.63 - $196.88
1984 GMC C1500 SuburbanV8-5.0LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$137.71Shop/Dealer Price$154.31 - $185.16
1981 GMC C1500 SuburbanV8-5.7LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$137.71Shop/Dealer Price$154.29 - $185.12
1985 GMC C1500 SuburbanV8-6.2L DieselService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$147.43Shop/Dealer Price$166.47 - $204.63
1982 GMC C1500 SuburbanV8-6.2L DieselService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$147.43Shop/Dealer Price$166.46 - $204.60
1983 GMC C1500 SuburbanV8-5.7LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$152.65Shop/Dealer Price$165.45 - $190.60
1983 GMC C1500 SuburbanV8-5.0LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$152.65Shop/Dealer Price$165.82 - $191.26
Show example GMC C1500 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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Excellent Rating

(14)

Rating Summary
13
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Calvin

23 years of experience
22 reviews
Calvin
23 years of experience
GMC C1500 Suburban V8-5.7L - Car is not starting - Stone Mountain, Georgia
Calvin is thorough and professional. He was able to diagnose my car so that I could know what specific repairs I needed to go forward with. Very helpful advice also.

Zac

13 years of experience
13 reviews
Zac
13 years of experience
GMC C1500 Suburban V8-5.7L - Tie Rod End Replacement (Front Left Inner, Front Right Inner, Front Left Outer, Front Right Outer) - Memphis, Tennessee
Zac did a great job on my tahoe. Very experienced in car repairs.

Mitchel

25 years of experience
239 reviews
Mitchel
25 years of experience
GMC C1500 Suburban V8-5.7L - Windshield Wiper Motor Replacement (Front) - Miami Beach, Florida
Great experience all around

John

21 years of experience
648 reviews
John
21 years of experience
GMC C1500 Suburban V8-5.7L - Car is not starting - Orlando, Florida
John was awesome. He was knowledgeable and well equipped. I would recommend him to everyone. Thanks for sending John to me.

Excellent Rating

(14)

Rating Summary
13
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1
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Number of GMC C1500 Suburban services completed
154+
services done by our mechanics
TOTAL NUMBER OF EXPERT GMC MECHANICS
900+
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