Car Thermostat Replacement at your home or office in Lake Oswego.

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Average rating from customers who
received a Thermostat Replacement.
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$116.03 - $706.19

Price range for all vehicles


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Average rating from customers who
received a Thermostat Replacement.
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Recent Car Thermostat Replacement reviews in Lake Oswego

Excellent Rating


YourMechanic Car Thermostat Replacement Service

Average Rating

4.9/5

Number of Reviews

1,606

Rating Summary
1,511
53
9
5
28
1,511
53
9
5
28

Manuel

30 years of experience
268 reviews
Manuel
30 years of experience
Very professional on time great worker
Manuel was very informative and got the work done quickly. He was very friendly and even showed me the things I needed to get replaced soon.

Richard

9 years of experience
265 reviews
Richard
9 years of experience
Excellent service - will definitely use Richard again!
What can I say. Another great experience with Richard and Your Mechanic.

Jay

35 years of experience
683 reviews
Jay
35 years of experience
i wasn't home during the repair however my son was and he said that Jay was very professional and completed the work required without an issue. He was very content with the work done to his car.
Quick ,fast ,professional !Reliable,Knowledgeable! Friendly!Awesome!

TJ

24 years of experience
333 reviews
TJ
24 years of experience
Fixed the problems. Courteous and efficient. Recommended 100%.

Andy

12 years of experience
13 reviews
Andy
12 years of experience
Clean, on time, professional, and honest. The reason why I will keep being a YM customer. Even stayed with my car an extra hour to make sure the problem was truly fixed.

Deane

9 years of experience
266 reviews
Deane
9 years of experience
Professional work and carried out in a timely fashion. Good job

Paul

23 years of experience
207 reviews
Paul
23 years of experience
Timely service!

Enrique

19 years of experience
244 reviews
Enrique
19 years of experience
Enrique is very personable and extremely professional. He explained everything that he was going to do and did it in a timely manner. I would definitely recommend him and if in the future I need a mechanic I will request him!

Chuy

12 years of experience
79 reviews
Chuy
12 years of experience
Awesome

Jamahl

18 years of experience
816 reviews
Jamahl
18 years of experience
Jamahl was incredible! Professional and courteous! 5 Stars all the way! HE knew what he was talking about!


How much does Car Thermostat Replacement cost in Lake Oswego?

It depends on the type of car you drive and the auto repair shop you go to in Lake Oswego. Our mechanics in Lake Oswego are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office in Lake Oswego.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2010 Mercury Mountaineer $148 $67.72 $79.99 15% $175.22
2005 Pontiac Grand Am $186 $41.98 $143.98 21% $235.48
2006 Jeep Commander $161 $73.15 $87.98 15% $191.40
2006 BMW 525xi $396 $244.47 $151.98 11% $448.72
2014 Acura TSX $175 $94.86 $79.99 13% $202.36
2009 Jaguar XJ8 $337 $161.27 $175.97 15% $397.77

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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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How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com