What would happen if the thermostat were removed from the cooling system?
TOM: Yes, Lee, removing the thermostat does make the car run cooler. But you should never, ever do it. When the engine is too cool, the thermostat closes and stops the coolant from flowing through the radiator, so the engine heats back up.
Is it OK to not use a thermostat?
The main purpose of an automobile’s thermostat is to regulate the operating temperature of the engine. So, if you drive without a thermostat, your engine will never reach its optimal operating temperature and your heater may blow cold air. If you live in a warm climate, this should not be a problem.
When do you need an OEM thermostat for a Toyota?
If you are having issues with overheating or your heater isn’t working, a thermostat may be the culprit. Here you’ll find a superior Toyota OEM thermostat for your model year. OEM thermostats are exact-fit replacement parts that never need modification.
When to know if your Toyota engine is overheating?
The temperature of your Toyota’s engine should be nice and consistent when you’re driving, ideally, half-way between “H” and “C”. While the engine can run a little hotter or cooler depending on the driving conditions, it should never approach the “H” …that’s a sign of a problem that demands serious (and immediate) attention.
Which is a symptom of a bad thermostat?
A symptom of a bad thermostat is an engine that overheats at highway speeds. It may never overheat at lower speeds because it is not working as hard as it does at higher speeds. A closed thermostat will not allow enough coolant to reach the engine to cool it.
What causes a head gasket to overheat in a Toyota?
Contaminated coolant is often associated with head gasket problems, but it can also be caused by a rusting or damaged cooling system component or the use of incorrect coolant. The tell-tale signs of a head gasket problem are: