Coolant Temperature Switch (Sensor) Replacement at your home or office.

Our certified mechanics come to you · Backed by our 12-month, 12,000-mile warranty · Get a fair and transparent estimate upfront

GET A QUOTE Backed by 12-month, 12,000-mile guarantee
Red-stars EXCELLENT RATING ON

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

It depends on the type of car you drive and the auto repair shop you go to. Our mechanics are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office.

Car Labor Cost Parts Cost Estimate Average Dealer Price Savings
2003 Ford F-150 $70.00 $44.38 $114 $151.88 24%
2010 Ford Escape $70.00 $34.21 $104 $141.71 26%
2008 Hyundai Entourage $70.00 $27.58 $98 $135.08 27%
2013 GMC Savana 1500 $70.00 $24.99 $95 $132.49 28%
2008 Saturn Astra $70.00 $37.99 $108 $145.49 25%
2007 Acura CSX $70.00 $27.58 $98 $135.08 27%
2004 Mercedes-Benz E320 $70.00 $53.98 $124 $161.48 23%
2004 Mercedes-Benz CLK320 $70.00 $53.98 $124 $161.48 23%
2004 Mercedes-Benz CL55 AMG $70.00 $35.98 $106 $143.48 26%
GET A QUOTE FOR YOUR CAR

Coolant Temperature Switch (Sensor) Replacement Service

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.

Fast and easy Coolant Temperature Switch (Sensor) Replacement service at your home or office.

GET A QUOTE FOR YOUR CAR
Backed by 12-month, 12,000-mile guarantee

Recent Coolant Temperature Switch (Sensor) Replacement reviews

Chris

18 years of experience
897 reviews
Chris
18 years of experience
Christ was very professional and an all right guy I would recommend christ any day of the week
1996 JEEP GRAND CHEROKEE - COOLANT TEMPERATURE SWITCH (SENSOR) - RANCHO SANTA MARGARITA, CA

Robert

27 years of experience
429 reviews
Robert
27 years of experience
On time, very up front about his experience with the issue, and how it was resolved.
1998 SATURN SL1 - COOLANT TEMPERATURE SWITCH (SENSOR) - SAN JOSE, CA

Eric

8 years of experience
202 reviews
Eric
8 years of experience
My first experience with Your Mechanic was a huge success and I couldn't have been more grateful for Eric's work ethic and expertise. He went over everything with me and actually showed me the issues with my car! It's so great to truly be able to understand what is going on with car - that was a first for me as well. So glad to have found such a stand up individual!! Eric is AWESOME!
1999 HONDA ACCORD - COOLANT TEMPERATURE SWITCH (SENSOR) - KNIGHTDALE, NC

Khoa

16 years of experience
153 reviews
Khoa
16 years of experience
Khoa was very professional, efficient, and informative. When availability opened up, he called to see if arriving earlier in the day would be more convenient than the scheduled appointment time. Khoa also suggested additional services based on aspects of my car that he noticed during the repair and patiently answered my multitude of questions. Finally, when the bill was more expensive than the initial estimate, he encouraged me to call customer service for clarification and amendment of the price (I called and YourMechanic addressed and resolved the issue immediately). Overall, a very positive experience!
2006 AUDI A8 QUATTRO - COOLANT TEMPERATURE SWITCH (SENSOR) - SAN JOSE, CA

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com