Car Thermostat Replacement at your home or office.

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Car Thermostat Replacement Estimate for Lexus GS400

Lexus GS400 Car Thermostat Replacement costs $121 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$121 to $131
Labor: $70 -$80
Parts: $51
Average Dealer price
$195
Average Shop price
$147
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Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
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CarServiceYourMechanic PriceShop/Dealer Price
2000 Lexus GS400V8-4.0LService typeCar Thermostat ReplacementYourMechanic Price$125.11Shop/Dealer Price$164.30 - $224.69
1998 Lexus GS400V8-4.0LService typeCar Thermostat ReplacementYourMechanic Price$124.09Shop/Dealer Price$163.14 - $222.86
1999 Lexus GS400V8-4.0LService typeCar Thermostat ReplacementYourMechanic Price$124.09Shop/Dealer Price$163.06 - $222.72
Show example Lexus GS400 Car Thermostat Replacement prices

Car Thermostat Replacement Service & Cost

What is the Thermostat all about?

A thermostat is part of the cooling system that regulates the temperature of the coolant in the engine. The thermostat is a metal valve that has a temperature sensor built in. It can either be open or closed. When the thermostat is closed, it keeps the coolant in the engine. When the engine gets to a predetermined temperature, the thermostat opens allowing coolant to circulate. The circulation of coolant prevents the engine from overheating. If the thermostat fails to open, the car will overheat. If the thermostat fails to close, the engine may never reach the optimal temperature (~220F). The thermostat opens and closes many times when the car engine is running. It is the most common component in the cooling system to fail, causing the car to overheat.

Thermostat

Keep in mind:

  • The entire cooling system should be inspected when the thermostat is replaced.
  • When the thermostat is replaced, the gaskets and housings should be cleaned thoroughly.

How it's done:

  • Scan the computer in the car for codes.
  • Verify that the car is overheating.
  • Remove and replace thermostat if it is faulty.
  • Clean old gasket surfaces.
  • Remove corrosion from housings/hose connections.
  • Fill cooling system.
  • Check for leaks and proper operating temperatures.

Our recommendation:

Have the thermostat replaced anytime you have major work done on the coolant system.

What common symptoms indicate you may need to replace the Thermostat?

  • Engine overheats.
  • Car heater does not work.
  • Check Engine light is on.

How important is this service?

A vehicle’s engine gets extremely hot, and in order to avoid overheating, it needs to be properly cooled. The engine is cooled by a viscous liquid called coolant. The coolant is circulated around the engine, where it absorbs heat, which allows the engine to remain at a safe temperature. A fan then lowers the temperature of the coolant, which allows it to run back through the engine once more. The thermostat is responsible for determining when the coolant needs to enter the engine. The thermostat determines the temperature of the engine, and then acts as a valve that allows coolant in, or keeps coolant out. When the engine is too cold, the thermostat keeps coolant out; when the engine is too hot, it lets coolant in.

When the thermostat stops working, it will either get stuck open or closed. If the thermostat is stuck open, the coolant will constantly flow through the engine, absorbing too much heat, and the engine will never reach optimal running temperature. If the thermostat is stuck closed, the coolant will never circulate through the engine, and your engine will quickly overheat, which can cause severe damage.

Fast and easy Car Thermostat Replacement service at your home or office.

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Meet some of our expert Lexus mechanics

Real customer reviews from Lexus owners like you.

586 reviews
Joshua
22 years of experience
I found Josh to be wonderful. He called 20 minutes in advance and confirmed my appointment. He arrived exactly on time and was very personable and efficient. He completed the work in 1 hour!!! He noticed an issue with a tire and he filled all my tires to the right pressure including my spare!! I couldn't have been more satisfied with the service. I am signing to get my husband's car serviced next! Can't wait. Thanks so much for the professionalism and great work Josh!
2010 LEXUS IS250 - OIL CHANGE
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450 reviews
Ben
36 years of experience
Ben was on time, explained the process and completed the job to my satisfaction. Would surely recommend.
2006 LEXUS RX400H - TIMING BELT REPLACEMENT
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137 reviews
Richard
6 years of experience
Very knowledgable and professional!
2007 LEXUS IS250 - BRAKE PADS REPLACEMENT (FRONT, REAR)
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50 reviews
Matthew
6 years of experience
Matthew arrived a few minutes ahead of schedule and got right to work replacing my alternator. He was very knowledgeable and professional. Cars are his passion and he is continuously studying to improve his skills. I will definitely use him and highly recommend him.
2000 LEXUS ES300 - ALTERNATOR REPAIR
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Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2000 Lexus GS400V8-4.0LService typeCar Thermostat ReplacementYourMechanic Price$125.11Shop/Dealer Price$164.30 - $224.69
1998 Lexus GS400V8-4.0LService typeCar Thermostat ReplacementYourMechanic Price$124.09Shop/Dealer Price$163.14 - $222.86
1999 Lexus GS400V8-4.0LService typeCar Thermostat ReplacementYourMechanic Price$124.09Shop/Dealer Price$163.06 - $222.72
Show example Lexus GS400 Car Thermostat Replacement prices

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