How do you replace the thermostat on a Toyota 4Runner?
Use a razor blade or gasket scraper to clean the surface for the installation of the thermostat housing. Now, take your new thermostat as well as gasket and set it in place in the same orientation as the original. That’s it, now you just have to button everything up. Figure 4. Thermostat removal.
When is it time to replace my engine thermostat?
Instead, the coolant is redirected back into the engine block to ensure it reaches its ideal temperature (around 190 degrees) sooner – regardless of how hot or cold the outside air is. The components of a typical engine thermostat.
What’s the best way to replace a thermostat?
Step 8 – Remove the thermostat housing sealing gasket, clean the area using a shop towel to remove all debris which will enable the new gasket a proper sealing surface. Step 9 – Match the old thermostat to the new unit, designs may vary. Step 10 – Install the new thermostat gasket to avoid leakage.
Where does the thermostat housing meet the radiator?
The thermostat housing is right where the radiator hose meets the engine housing. It looks like half of a metal baseball. When the thermostat becomes stuck, it is reasonable to simply replace it. Also, when the thermostat housing is removed, the housing gasket should be replaced even if you’re just checking it.
Do you need to change the thermostat on a Toyota?
Toyota engines are known for being reliable and relatively easy to work on, but it is sometimes necessary or advisable to change the thermostat just to make sure the valve is not sticking closed or open at the wrong times.
How do you replace the thermostat on an engine?
Pull the housing away from the engine and then remove the thermostat located below. Install the new thermostat in its place and then secure the housing back in place with the socket set. Slide the hose back onto the housing and secure with the hose clamp.
Where is the stopcock on a Toyota 4Runner?
On the driver’s side of the bottom of the radiator, you will see a stopcock that you can open to drain the coolant. Make sure your drain pan is underneath the stopcock. If your coolant is clean or newly flushed, then only drain enough coolant to bring the system level under the thermostat. If you plan on replacing the coolant, then drain all of it.