How to test and replace a thermostat on Toyota MR2?

The thermostat should be removed. For the purpose of testing, the thermostat needs to be put in water slowly raised to boiling temperature-if the valve fails to open when it reaches the exact point, then a new one is needed. Observe the water temperature at which the valve pops and compare with this designated popping temperature. The thermostat should be replaced if it does not open at its rated temperature.

How do you remove and install the thermostat in a Toyota MR2?

First of all, disconnect the hose from the air bleeder valve. To remove the thermostat, disconnect the small rubber hose from the air bleeder valve and remove the housing bolts. Remove both bolts and separate the water inlet housing halves. Remove the thermostat. Be sure to install a new O-ring on the new thermostat. Installation is the reverse of removal.

Genuine Toyota MR2 Thermostat

Engine Coolant Thermostat

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Toyota MR2 Thermostat
Part Number: 90916-03075
$27.48 MSRP: $38.41
You Save: $10.93 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Manufacturer Note: *WAX 82-95
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1990-1995 Toyota MR2 | 4 Cyl 2.0L, 4 Cyl 2.2L | 3SGTE, 5SFE; 3SGTE, 5SFE; SW20L-ACMZZA, SW20L-AJMZZA, SW20L-AJMZZK, SW21L-ACMZKA, SW21L-ACPZKA, SW21L-AJMZKA, SW21L-AJMZKK, SW21L-AJPZKA
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Toyota MR2 Thermostat
Part Number: 90916-03046
$24.62 MSRP: $34.41
You Save: $9.79 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: 90916-03069
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1985-1988 Toyota MR2 | GT | 4 Cyl 1.6L | 4AGELC; 4AGELC; AW11L-WCMQFA, AW11L-WCMQFK, AW11L-WCPQFA, AW11L-WCPQFK, AW11L-WJMQFA, AW11L-WJMQFK, AW11L-WJPQFA
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Toyota MR2 Thermostat
Part Number: 90916-03060
$27.38 MSRP: $38.27
You Save: $10.89 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Manufacturer Note: *WAX 82-95
- Replaced by: 90916-03090
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1987-1989 Toyota MR2 | GT, Super Charger | 4 Cyl 1.6L | 4AGELC, 4AGZE; 4AGELC, 4AGZE; AW11L-WCMQFA, AW11L-WCMQFK, AW11L-WCPQFA, AW11L-WCPQFK, AW11L-WJMQFA, AW11L-WJMQFK, AW11L-WJMQRA, AW11L-WJMQRK, AW11L-WJPQFA, AW11L-WJPQRA

Toyota MR2 Thermostat

Let's take a detailed look at one of the Toyota MR2 important components: the Thermostat. Most of the time it is placed close to the radiator and it assist in the regulation of optimum temperature range of the engine. Using a closed loop feedback control, the Thermostat measures the temperature and changes it to the set point. In the course of this research, various types of Thermostats that has been incorporated in MR2 vehicles were mechanical Thermostats like; bimetallic strip and wax pellet and pneumatic Thermostats which make use of control tubes filled with air. These Thermostats operate on a switching operation where it turns on or off the heating or cooling devices, or were the flow of heat transfer fluids are adjusted for the maintenance of accurate temperature to improve on the performance and efficiency of the equipments.

If you are in demand for superior quality and affordable OEM Toyota MR2 Thermostat, then shop with us! We own a wide range of the reduced-priced genuine Toyota MR2 Thermostat. You can purchase in confidence as all parts come with a manufacturer's warranty. Any issues with our products? No need to worry as we have a hassle-free return policy to guide you every step of the way.

Toyota MR2 Thermostat Parts Questions & Experts Answers

Thermostat
90916-03060
Q: How to test and replace a thermostat on Toyota MR2?
A: The thermostat should be removed. For the purpose of testing, the thermostat needs to be put in water slowly raised to boiling temperature-if the valve fails to open when it reaches the exact point, then a new one is needed. Observe the water temperature at which the valve pops and compare with this designated popping temperature. The thermostat should be replaced if it does not open at its rated temperature.
Thermostat
90916-03046
Q: How do you remove and install the thermostat in a Toyota MR2?
A: First of all, disconnect the hose from the air bleeder valve. To remove the thermostat, disconnect the small rubber hose from the air bleeder valve and remove the housing bolts. Remove both bolts and separate the water inlet housing halves. Remove the thermostat. Be sure to install a new O-ring on the new thermostat. Installation is the reverse of removal.