Volvo 780 Car Thermostat Replacement at your home or office.

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Car Thermostat Replacement Estimate for Volvo 780

Volvo 780 Car Thermostat Replacement costs $169 on average.

CarServiceEstimateShop/Dealer Price
1989 Volvo 780V6-2.8LService typeCar Thermostat ReplacementEstimate$256.41Shop/Dealer Price$312.02 - $447.33
1990 Volvo 780L4-2.3L TurboService typeCar Thermostat ReplacementEstimate$229.37Shop/Dealer Price$279.13 - $400.48
1988 Volvo 780V6-2.8LService typeCar Thermostat ReplacementEstimate$246.41Shop/Dealer Price$300.43 - $434.56
1987 Volvo 780V6-2.8LService typeCar Thermostat ReplacementEstimate$246.41Shop/Dealer Price$300.41 - $434.52
1989 Volvo 780L4-2.3L TurboService typeCar Thermostat ReplacementEstimate$229.37Shop/Dealer Price$279.15 - $400.51
1990 Volvo 780V6-2.8LService typeCar Thermostat ReplacementEstimate$247.13Shop/Dealer Price$301.33 - $436.00
1991 Volvo 780L4-2.3L TurboService typeCar Thermostat ReplacementEstimate$234.37Shop/Dealer Price$284.00 - $405.24
Show example Volvo 780 Car Thermostat Replacement prices

Car Thermostat Replacement Service

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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Meet some of our expert Volvo mechanics

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Chuy

14 years of experience
331 reviews
Chuy
14 years of experience
Volvo V50 L5-2.4L - Thermostat - Chicago, Illinois
Chuy was super friendly, down-to-earth, and easy to work with. I felt I could trust his opinions more than if I had taken my vehicle into a standard shop.

Jose

10 years of experience
285 reviews
Jose
10 years of experience
Volvo XC90 L6-3.2L - Car Thermostat Replacement - Saint Petersburg, Florida
On time, had the right parts, knew what he was doing..... No complaints I would ask for Jose again no problem

Ralph

38 years of experience
167 reviews
Ralph
38 years of experience
Volvo V70 L5-2.4L Turbo - Thermostat - Tacoma, Washington
Good mechanic, on time, friendly, very knowledgeable. Man on a mission is a good way to describe Ralph. Once the job is started you can guarantee it will be finished. I personally would recommend to friends and family.

Theodore

16 years of experience
1448 reviews
Theodore
16 years of experience
Volvo XC60 L6-3.2L - Thermostat - Redmond, Washington
Very knowledgeable. Was able to diagnose and repair immediately. Ask for him by name to save return trips for warranty work.

Excellent Rating

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Rating Summary
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Number of Volvo Thermostat Replacement services completed
110+
services done by our mechanics
TOTAL NUMBER OF EXPERT Volvo MECHANICS
600+
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