Mercury Cougar Car Thermostat Replacement Costs

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Car Thermostat Replacement Service

How much does a Car Thermostat Replacement cost?

On average, the cost for a Mercury Cougar Car Thermostat Replacement is $204 with $64 for parts and $140 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2002 Mercury CougarV6-2.5L	Service typeCar Thermostat Replacement	Estimate$462.22	Shop/Dealer Price$514.51 - $656.78
1993 Mercury CougarV8-5.0L	Service typeCar Thermostat Replacement	Estimate$306.99	Shop/Dealer Price$349.07 - $471.20
1993 Mercury CougarV6-3.8L	Service typeCar Thermostat Replacement	Estimate$310.37	Shop/Dealer Price$353.32 - $478.00
1996 Mercury CougarV8-4.6L	Service typeCar Thermostat Replacement	Estimate$329.71	Shop/Dealer Price$377.50 - $516.68
1990 Mercury CougarV6-3.8L	Service typeCar Thermostat Replacement	Estimate$310.37	Shop/Dealer Price$354.80 - $480.58
1991 Mercury CougarV6-3.8L	Service typeCar Thermostat Replacement	Estimate$310.37	Shop/Dealer Price$353.46 - $478.25
2000 Mercury CougarV6-2.5L	Service typeCar Thermostat Replacement	Estimate$446.00	Shop/Dealer Price$495.18 - $635.12
1999 Mercury CougarV6-2.5L	Service typeCar Thermostat Replacement	Estimate$446.00	Shop/Dealer Price$495.15 - $635.07

Show example Mercury Cougar Car Thermostat Replacement prices

What is an engine cooling system thermostat and how does it work?

The car's engine cooling system thermostat is a small valve within a cooling system passageway that opens and closes in response to the temperature of the circulating engine coolant. When your car is first started and the coolant is cold, the valve in the thermostat will be in the closed position, circulating the coolant flow only within the engine instead of flowing to the radiator, which allows the engine to warm up fast, promoting fuel efficiency, low emissions, and reduced engine deposits. Once the engine coolant reaches the design temperature, usually around 195 degrees, the valve will open and close as you drive in order to maintain a coolant temperature typically between 195 to 225 degrees Fahrenheit.

Thermostat

When to consider replacing the engine cooling system thermostat:

Engine overheats. A thermostat with the valve stuck closed is a common cause of engine overheating. However, since there are other causes of overheating, a mechanic will thoroughly inspect the cooling system prior to condemning the thermostat. Since it is usually not known how badly the engine overheated, the mechanic will also try to determine if there is evidence that the cylinder head gasket was blown. If so, it would be repaired prior to replacing the thermostat.
Temperature gauge reads too low or too high. Thermostats can get sticky, causing the engine temperature to stray from the optimal range. Your dash-mounted temperature gauge will notify you of this malfunction.
Cooling system repairs. All thermostats eventually fail. Therefore, if the cooling system is already open for major repairs, such as water pump or radiator replacement, it is recommended to install a new thermostat simply as insurance against future breakdown.

How do mechanics replace the engine cooling system thermostat?

Once the engine is completely cold, the radiator cap is loosened and enough coolant is drained from the radiator so the coolant level is below the thermostat housing.
The thermostat housing is removed and the thermostat and gasket are extracted. Note that some cars have more than one cooling system thermostat and both might need replacement.
All mounting surfaces on the thermostat housing are cleaned of old gasket material. A new gasket is applied and the thermostat is re-installed in the correct orientation and with the temperature sensing cylinder facing downward towards the engine.
The thermostat housing bolts are tightened to original equipment manufacturer (OEM) specifications using a calibrated inch-pound torque wrench.
The cooling system is refilled with the appropriate coolant type and the system is fully bled of all air.
The car engine is run until the normal operating temperature is reached, and while taking precautions with the hot coolant, the coolant level is rechecked while confirming there is flow through the radiator — either visually or with an infrared temperature gun. This will confirm the thermostat is open. Finally, the engine is checked for leaks.

Is it safe to drive with an engine cooling system thermostat problem?

No. If it has been determined that there is a thermostat problem, it should be repaired right away. Failure to do so can cause substantial and costly damage to the engine.

When replacing the engine cooling system thermostat keep in mind:

Engine overheating due to causes other than a faulty thermostat, will themselves damage a thermostat. Therefore, always replace the thermostat if the engine overheats, even if the thermostat was not the initial cause of the overheating.
The thermostat should be replaced anytime you have major work done on the coolant system. It is convenient and costs little during such repairs and insurance against future breakdown.
OEM thermostats are the best ones to use and you can request your mechanic to install only the OEM thermostat. Dealer supplied, OEM thermostats are sometimes more costly but are generally higher quality and specifically engineered for your car.

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David

22 years of experience

107 reviews

David

22 years of experience

by Alan

Mercury Cougar V6-2.5L - Oil Change - Parker, Colorado

My family thought this might be a scam because it's so cheap or at best it was one of those monthy fee places. I was more than happy to relay to them that it was in fact and legit and am gladly showing my bill to them now and they are all getying ready to try it out as well for their cars. Thanks for the good work guys!!!

Peter

37 years of experience

346 reviews

Peter

37 years of experience

by James

Mercury Cougar V6-3.8L - AC Compressor - Phoenix, Arizona

The AC compressor that he replaced stopped working three days later. Peter came back out to diagnose the problem and sure enough the compressor stopped working. Two days later he installed a new one, but it too wasn't working. Peter determined that the condensor was clogged which is why first compressor failed. He immediately ordered a new condensor which would not be available until after lunch. A few hours later Peter returned and installed the new part outside in my parking lot when it was 106 degrees in the sun. Since the compressor was in warranty he replaced it and didn't charge me for the new part nor did he not charge me the labor to install it. He also gave me a fair price on the new condensor. Peter is honest and fair. He is not your ordinary mechanic out to see how much he can make off you. The rates are very reasonable.

Andrew

12 years of experience

962 reviews

Andrew

12 years of experience

by Bill

Mercury Cougar V6-2.5L - Serpentine/Drive Belt - Kansas City, Missouri

He was on time efficient honest and did his job

Casey

25 years of experience

152 reviews

Casey

25 years of experience

by Bob

Mercury Cougar V6-2.5L - Oil Change - Seattle, Washington

Casey was awesome!! Did an oil change and tire rotation, he was in and out in under an hour. He was very professional and filled out a complete report after his massive point inspection. After he left I felt I knew exactly what was needed to get the car in tip top shape. Thanks Casey!!

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