Pontiac Sunbird Car Thermostat Replacement at your home or office.

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$119.43 - $214.54

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Car Thermostat Replacement Estimate for Pontiac Sunbird

Pontiac Sunbird Car Thermostat Replacement costs $132 on average.

CarServiceEstimateShop/Dealer Price
1976 Pontiac SunbirdV6-3.8LService typeCar Thermostat ReplacementEstimate$190.11Shop/Dealer Price$228.23 - $315.95
1993 Pontiac SunbirdL4-2.0LService typeCar Thermostat ReplacementEstimate$169.27Shop/Dealer Price$202.12 - $274.17
1978 Pontiac SunbirdV6-3.8LService typeCar Thermostat ReplacementEstimate$190.11Shop/Dealer Price$228.23 - $315.95
1990 Pontiac SunbirdL4-2.0L TurboService typeCar Thermostat ReplacementEstimate$174.27Shop/Dealer Price$206.46 - $278.01
1992 Pontiac SunbirdL4-2.0LService typeCar Thermostat ReplacementEstimate$169.27Shop/Dealer Price$203.86 - $277.21
1992 Pontiac SunbirdV6-3.1LService typeCar Thermostat ReplacementEstimate$164.09Shop/Dealer Price$194.48 - $261.77
1987 Pontiac SunbirdL4-2.0L TurboService typeCar Thermostat ReplacementEstimate$169.27Shop/Dealer Price$199.03 - $268.75
1994 Pontiac SunbirdL4-2.0LService typeCar Thermostat ReplacementEstimate$174.27Shop/Dealer Price$205.74 - $276.76
Show example Pontiac Sunbird 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 Pontiac mechanics

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YourMechanic Pontiac Sunbird Service

Average Rating

5/5

Number of Reviews

4

Rating Summary
4
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4
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Joshua

25 years of experience
709 reviews
Joshua
25 years of experience
Pontiac Sunbird - Ignition key does not turn - Oakland, California
Joshua was great. He arrived early which was a plus. He quickly resolved the problem and ordered the parts. I would recommend him to everyone. As a matter of fact while he was there attending my Mom's car, I had him to look at my car as well. He was wonderful and very professional.

Michael

38 years of experience
131 reviews
Michael
38 years of experience
Pontiac Sunbird - Car is overheating - Columbus, Ohio
Michael was very professional, kind, courteous, attentive. He listened to what I had to say and helped to find the solution to the problem. Thank you, Mike, for everything you did to get me back on the road. 

Paul

8 years of experience
38 reviews
Paul
8 years of experience
Pontiac Sunbird - Ignition Lock Assembly - Austin, Texas

Andrew

9 years of experience
551 reviews
Andrew
9 years of experience
Pontiac Sunbird - Axle / CV Shaft Assembly Replacement (Driver Side Front) - Kansas City, Missouri
Very good experience with this service, Andrew was a true life saver. Will definitely be using this service again. I will definitely recommend this service to everyone that needs or could use it. Thank you

Excellent Rating


YourMechanic Pontiac Sunbird Service

Average Rating

5/5

Number of Reviews

4

Rating Summary
4
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4
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Red-stars EXCELLENT RATING ON
Number of Pontiac Sunbird services completed
44+
services done by our mechanics
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