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Genesis G90 Car Thermostat Replacement at your home or office.

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Car Thermostat Replacement Service

How much does a Car Thermostat Replacement cost?

On average, the cost for a Genesis G90 Car Thermostat Replacement is $488 with $292 for parts and $196 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2017 Genesis G90V6-3.3L TurboService typeCar Thermostat ReplacementEstimate$1079.98Shop/Dealer Price$1237.50 - $1684.12
2018 Genesis G90V6-3.3L TurboService typeCar Thermostat ReplacementEstimate$788.37Shop/Dealer Price$936.93 - $1376.84
2018 Genesis G90V8-5.0LService typeCar Thermostat ReplacementEstimate$788.37Shop/Dealer Price$936.96 - $1376.90
2017 Genesis G90V8-5.0LService typeCar Thermostat ReplacementEstimate$788.37Shop/Dealer Price$936.96 - $1376.90
Show example Genesis G90 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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James

27 years of experience
184 reviews
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James
27 years of experience
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by Vaughn
Genesis G90 V8-5.0L - Oil Change - Nashville, Tennessee
James was incredibly punctual, knowledgeable, and efficient. Did a great job and would highly recommend.

Corey

13 years of experience
511 reviews
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Corey
13 years of experience
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by Yesi
Genesis G90 V6-3.3L Turbo - Brake System Flush - Mount Holly, North Carolina
He was great.

Nezar

27 years of experience
102 reviews
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Nezar
27 years of experience
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by Pierre
Genesis G80 V8-5.0L - Serpentine/Drive Belt - Pompano Beach, Florida
Very experienced mechanic, done work in a timely manner, gave recommendations outside the scope for the car maintenance. Recommended Nazar highly. Great Job. Pierre P.

Claud

9 years of experience
640 reviews
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Claud
9 years of experience
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by Davis
Genesis G70 V6-3.3L Turbo - Oil Change - Hazel Park, Michigan
Claud is a fantastic mechanic! This is my second time getting work done by him. Every job Claud has worked on he has done great work. First job was changing my spark plugs. Couple thousand miles no issues. This time I needed Claud to drain my oil and refill with full synthetic. He always takes the time to explain why he does things. I have full confidence in his judgment and experience to fix any of my vehicle issues. Also, I noticed he always goes about troubleshooting and fixing things the right way not the fast way. I really appreciate that about him. He has been a pleasure to work with every appointment. If you are looking for an honest mechanic with tons of experience, I highly recommend Claud.

Excellent Rating

(9)
Rating Summary
9
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9
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0
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Number of Genesis services completed
99+
services done by our mechanics
TOTAL NUMBER OF EXPERT Genesis MECHANICS
10+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

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