Mitsubishi Endeavor 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

(150)

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

(150)

Car Thermostat Replacement Estimate for Mitsubishi Endeavor

Mitsubishi Endeavor Car Thermostat Replacement costs $193 on average.

CarServiceEstimateShop/Dealer Price
2004 Mitsubishi EndeavorV6-3.8LService typeCar Thermostat ReplacementEstimate$257.89Shop/Dealer Price$308.51 - $429.66
2010 Mitsubishi EndeavorV6-3.8LService typeCar Thermostat ReplacementEstimate$291.88Shop/Dealer Price$351.21 - $478.90
2011 Mitsubishi EndeavorV6-3.8LService typeCar Thermostat ReplacementEstimate$291.88Shop/Dealer Price$351.21 - $478.90
2006 Mitsubishi EndeavorV6-3.8LService typeCar Thermostat ReplacementEstimate$235.89Shop/Dealer Price$286.50 - $407.65
2005 Mitsubishi EndeavorV6-3.8LService typeCar Thermostat ReplacementEstimate$235.89Shop/Dealer Price$286.54 - $407.72
2008 Mitsubishi EndeavorV6-3.8LService typeCar Thermostat ReplacementEstimate$235.89Shop/Dealer Price$286.52 - $407.69
2007 Mitsubishi EndeavorV6-3.8LService typeCar Thermostat ReplacementEstimate$241.39Shop/Dealer Price$291.87 - $412.93
Show example Mitsubishi Endeavor 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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mitsubishi mechanics

Real customer reviews from Mitsubishi owners like you.

Excellent Rating

(150)

Rating Summary
142
3
3
1
1
142
3
3
1
1

Sergio

45 years of experience
46 reviews
Sergio
45 years of experience
Mitsubishi Endeavor V6-3.8L - Wheel Bearings Replacement (Driver Side Rear, Passenger Side Rear) - Douglasville, Georgia
Nice guy ......got to work on my ride and got it DONE!! he also gave me a lot of helpful info on a different car issue .....

Jeffrey

27 years of experience
870 reviews
Jeffrey
27 years of experience
Mitsubishi Endeavor V6-3.8L - Car is not starting - Charlotte, North Carolina
Jeffreys is frendly and professional

Dimitri

10 years of experience
9 reviews
Dimitri
10 years of experience
Mitsubishi Endeavor V6-3.8L - Check Engine Light is on - Houston, Texas
Very prompt and pleasant. Diagnosed problem in a very short time.

Chris

15 years of experience
312 reviews
Chris
15 years of experience
Mitsubishi Endeavor V6-3.8L - Check Engine Light is on - Vista, California
very personable and honest.

Excellent Rating

(150)

Rating Summary
142
3
3
1
1
142
3
3
1
1
Number of Mitsubishi Endeavor services completed
1650+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mitsubishi MECHANICS
700+
experts on our platform

Recent articles & questions

Symptoms of a Bad or Failing Daytime Running Lamp Module
If your daytime running lights do not come on, stay on when the car is off, or produce a burning smell, you may have to replace their module.
What Does the Electronic Stability Control (ESC) Warning Light Mean?
The ESC warning light is designed to help drivers in case they lose steering control by retaining control of the brakes and engine power in the car.
B1964 OBD-II Trouble Code: Seat Horizontal Forward/Rearward Potentiometer Feedback Circuit Short to Battery
B1964 means there is a circuit malfunction in the power seat potentiometer, likely due to a defective potentiometer or damaged electrical components.

How do I adjust the sound on the radio?

While your radio is set for decent audio performance across a wide range of music and entertainment types, you might find that you need to adjust the sound depending on your preferences and on the type of music in question....

Steering wheel clicks when turned and rattles over some bumps and bad roads

At 47,000 miles, I would not suspect your steering column is worn. Depending on the history (wrecks, fender benders, potholes, etc), you may have worn out components in your front suspension. A clunking noise over bumps is likely a sway...

after changing valve cover gasket truck just crank no start

Hi there: The only thing I imagine that could cause this problem is if you accidentally removed an ignition wire or wire to connected to the starter relay. There should be no reason why replacing a valve cover gasket on...

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