Geo Storm 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 Geo Storm Car Thermostat Replacement is $223 with $83 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1992 Geo StormL4-1.8LService typeCar Thermostat ReplacementEstimate$331.22Shop/Dealer Price$378.88 - $513.74
1992 Geo StormL4-1.6LService typeCar Thermostat ReplacementEstimate$313.47Shop/Dealer Price$357.17 - $484.16
1993 Geo StormL4-1.8LService typeCar Thermostat ReplacementEstimate$322.21Shop/Dealer Price$368.12 - $501.68
1993 Geo StormL4-1.6LService typeCar Thermostat ReplacementEstimate$313.47Shop/Dealer Price$357.20 - $484.20
1991 Geo StormL4-1.6LService typeCar Thermostat ReplacementEstimate$312.75Shop/Dealer Price$357.77 - $485.34
1990 Geo StormL4-1.6LService typeCar Thermostat ReplacementEstimate$312.75Shop/Dealer Price$356.44 - $483.01
Show example Geo Storm 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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Meet some of our expert Geo mechanics

Real customer reviews from Geo owners like you.

Excellent Rating

(79)

Rating Summary
73
5
0
0
1
73
5
0
0
1

Whitney

40 years of experience
783 reviews
Whitney
40 years of experience
Geo Storm L4-1.6L - Alternator - Santa Clara, California
Whitney is a true professional. Showed up to the appointment at least an hour before the actual scheduled time! Because of this, we were able to start work on my car earlier than expected (which is a good thing). There are still some other things that need to be done with my car, since I didn't want to spend a boat load of money in one sitting. I hope to work with Whitney again, and would highly recommend YourMechanic to my friends and family.

Chris

27 years of experience
126 reviews
Chris
27 years of experience
Geo Prizm L4-1.6L - Thermostat - Sacramento, California
Great amazing experience Chris is a very professional mechanic with years of exprience and knows his stuff very very well! I would strongly recommend him to anyone and everyone! #1

Carlos

17 years of experience
362 reviews
Carlos
17 years of experience
Geo Prizm L4-1.8L - Oil Change - Fort Worth, Texas
I recommend Carlos Miller if your in the Fort Worth area. He was competent but down-to-earth. He obviously knew a lot more than me when it comes to cars, but he was able to teach me a lot about my car in a way that wasn't arrogant but helpful and friendly.

Tung

17 years of experience
310 reviews
Tung
17 years of experience
Geo Tracker L4-1.6L - Starter - Atlanta, Georgia
The experience was good and Tung completed the ticket based on the expected part installs. But the truck is coughing and sputtering and moves with very low power. Wondering if could be a sensor problem or since the car sat maybe bad fuel.

Excellent Rating

(79)

Rating Summary
73
5
0
0
1
73
5
0
0
1
Number of Geo services completed
869+
services done by our mechanics
TOTAL NUMBER OF EXPERT Geo MECHANICS
70+
experts on our platform

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