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

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(23)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(23)

Coolant Temperature Switch (Sensor) Replacement Service

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

On average, the cost for a Mercury Tracer 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
1995 Mercury TracerL4-1.8LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$171.59Shop/Dealer Price$195.74 - $245.69
1994 Mercury TracerL4-1.8LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$151.59Shop/Dealer Price$175.76 - $225.72
1995 Mercury TracerL4-1.9LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$131.35Shop/Dealer Price$150.46 - $185.24
1992 Mercury TracerL4-1.9LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$131.35Shop/Dealer Price$150.44 - $185.20
1991 Mercury TracerL4-1.9LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$131.35Shop/Dealer Price$150.47 - $185.27
1993 Mercury TracerL4-1.9LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$131.35Shop/Dealer Price$150.46 - $185.24
1994 Mercury TracerL4-1.9LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$136.35Shop/Dealer Price$155.32 - $190.00
1991 Mercury TracerL4-1.8LService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$156.59Shop/Dealer Price$180.99 - $231.14
Show example Mercury Tracer 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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercury mechanics

Real customer reviews from Mercury owners like you.

Excellent Rating

(23)

Rating Summary
22
1
0
0
0
22
1
0
0
0

Toby

10 years of experience
100 reviews
Toby
10 years of experience
Mercury Tracer L4-2.0L - Battery - Fort Worth, Texas
Toby was excellent. He fixed my issues and provided technical advice that was easy to understand.

Allen

36 years of experience
471 reviews
Allen
36 years of experience
Mercury Tracer L4-2.0L - Alternator Belt - Daytona Beach, Florida
Allen is very Knowledgeable and he was able to fix my issue without any complications. He will definitely be my Master Mechanic for auto problems in the future.

Anthony

11 years of experience
103 reviews
Anthony
11 years of experience
Mercury Tracer L4-2.0L - Battery is dead - Fort Worth, Texas
Anthony was very knowledgeable, professional and friendly.

Chris

16 years of experience
18 reviews
Chris
16 years of experience
Mercury Tracer L4-2.0L - Other Inspections - Dallas, Texas
Showed up on time, friendly, well- mannered and courteous. Worked quickly and efficiently, explain things to me where I could understand what was going on. Job well done. I would be happy to have Chris work on my car again.

Excellent Rating

(23)

Rating Summary
22
1
0
0
0
22
1
0
0
0
Number of Mercury Tracer services completed
253+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

Recent articles & questions

How Long Do Car Switches Normally Last?
Nearly Nearly all your vehicle functions are operated by switches of some sort. When you start your car, the ignition cylinder activates the ignition switch. When you open your car’s power windows, you operate a switch. When you activate the...
How to Register a Car in Mississippi
Moving Moving to a new area can be a very exciting experience, but it is not without a bit of hard work. In order to get settled in to a new area, you will need to make sure that you...
P3408 OBD-II Trouble Code: Cylinder 1 Deactivation/Exhaust Valve Malfunction
P3408 P3408 code definition P3408 is the fault code for Cyl1 Exhaust Valve Ctrl Circ High. Cyl1 specifies that the issue is likely taking place in engine cylinder number 1. What the P3408 code means Late model vehicles with eight...

can you replace the 700r4 with the turbo 400?

The turbo 400 was used on a lot of trucks with the 5.7 engine and should be bolted up if it came out of an engine with a 5.7 or 5.0 engine. As far as the drive shaft and length...

Noise like brake pads over 35 or 40 no noise under 35

It sounds like you may have a weak ABS wheel sensor and a loose wheel bearing. When you hit the brakes, the sensor losing signal may be causing the ABS to activate. You would need to have the ABS diagnosed...

White smoke coming from hood

Hi there. White smoke coming from the engine is typically steam as opposed to oil burning, so it's quite possible that you may have a coolant leak or other issue not related to an engine failure. When the check engine...

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 (855) 347-2779 · hi@yourmechanic.com