Toyota Highlander Car Thermostat Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(7)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(7)

Car Thermostat Replacement Service

How much does a Car Thermostat Replacement cost?

On average, the cost for a Toyota Highlander Car Thermostat Replacement is $229 with $89 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2011 Toyota HighlanderV6-3.5LService typeCar Thermostat ReplacementEstimate$395.26Shop/Dealer Price$444.87 - $582.34
2011 Toyota HighlanderV6-3.5L HybridService typeCar Thermostat ReplacementEstimate$382.65Shop/Dealer Price$429.78 - $565.40
2002 Toyota HighlanderL4-2.4LService typeCar Thermostat ReplacementEstimate$329.05Shop/Dealer Price$376.67 - $515.36
2017 Toyota HighlanderL4-2.7LService typeCar Thermostat ReplacementEstimate$509.00Shop/Dealer Price$570.44 - $746.80
2018 Toyota HighlanderV6-3.5LService typeCar Thermostat ReplacementEstimate$457.75Shop/Dealer Price$525.75 - $719.27
2018 Toyota HighlanderV6-3.5L HybridService typeCar Thermostat ReplacementEstimate$457.75Shop/Dealer Price$523.88 - $716.00
2015 Toyota HighlanderV6-3.5L HybridService typeCar Thermostat ReplacementEstimate$581.07Shop/Dealer Price$677.86 - $962.34
2010 Toyota HighlanderV6-3.5LService typeCar Thermostat ReplacementEstimate$382.65Shop/Dealer Price$429.81 - $565.46
Show example Toyota Highlander 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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Toyota mechanics

Real customer reviews from Toyota owners like you.

Excellent Rating

(7)

Rating Summary
7
0
0
0
0
7
0
0
0
0

Excellent Rating

(7)

Rating Summary
7
0
0
0
0
7
0
0
0
0
Number of Toyota Highlander Car Thermostat Replacement services completed
77+
services done by our mechanics
TOTAL NUMBER OF EXPERT Toyota MECHANICS
1700+
experts on our platform

Recent articles & questions

P2346 OBD-II Trouble Code: Cylinder #11 Above Knock Threshold
P2346 P2346 trouble code definition Cylinder #11 Above Knock Threshold What the P2346 code means Code P2346 means that the engine control module (ECM) detected the cylinder #11 knocking more than the specified limits before turning on the Check Engine...
How Much Time Do You Have to Report a Car Accident in Each State?
Car accidents must be reported to the police after a car crash occurs. Reports must be made immediately in Arizona but Arkansas gives you 90 days.
The Best Used Cars to Buy If You Smoke
No No lectures here – you know that smoking is bad for you. In fact, right now, only about 15% of adults in the United States smoke, and that means that over the years, motor vehicle manufacturers have become less...

P0030 p0015 chk eng lgt on whining noise stuck 2 gear 1 yr had car let son drive 2 NV havent chk fluid N trans hope it wasnt low

The code P0015 is a bank 1 timing over retarded warning. The P0030 code stands for the heated oxygen sensor malfunction, which also pertains to bank 1. The oxygen sensor malfunction could be due to a failed sensor, heater, or...

Smaller serpentine belt shredded and pieces went into the crank shaft Tried to start timing jumped. How do I fix? 05' kia op 2.4L

The KIA 2.4 liter motor is what is called an interference motor and this means it will bend valves if the timing belt breaks or jumps timing. You will need to have cylinder head removed and bent valves replaced if...

While doing spark plug and wires I crossed the wires in my 96 Chevy tahoe took me a day in a half to figure it but was still drivi

Hi Jervon. Thanks for contacting us tonight. While installing spark plug wires incorrectly can cause misfiring, it's quite possible that you had an existing vacuum leak. It's also possible that the vacuum leak may have been caused while you removed...

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 (855) 347-2779 · hi@yourmechanic.com