When the engine is cold no coolant flows through the engine.
Car thermostat temperature range.
Most vehicle engines operate at a temperature range of approximately 195 220 ºf 91 104 ºc.
Without a thermostat your engine won t get to the operating temperature the computer is looking for so it will think the engine is cold and enrich the fuel mixture to help warm the engine.
This is the temperature the thermostat will start to open give or take 3 degrees the thermostat fully open about 15 20 degrees above its rated temperature many thermostats have a jiggle pin or check valve that allows trapped air in the cooling system to pass through the thermostat and be released from the system.
For most cars the normal operating engine temperature is in a range of 195 to 220 degrees fahrenheit though most dashboard temperature gauges don t show an exact temperature.
Whatever the rating is that is the temperature the wax will begin to melt and your thermostat will open.
That s like driving with the choke on all the time the engine won t run right you ll pollute the air your gas mileage will suck.
Check your vehicle repair manual for the thermostat operating range and make sure you have the correct one for your application.
Or replace it if necessary.
If the temperature gauge is staying the normal range.
Low temperature reading and underheated engine.
My cars temperature gauge while driving goes down to about 1 4 but then when i stop or go idle the temperature gauge slowly goes right to the middle.
Do you think this could be a faulty thermostat temp sensor or water pump or not the right ratio of coolant in the cooling system.
A thermostat stuck in the open position constantly pushes coolant into the engine and causes a lower operating temperature.
Watch this video as barry wilson explains the importance of choosing the correct thermostat for a classic car or truck engine.
It means coolant isn t entering the engine because the thermostat is stuck closed and your car can suffer engine damage fast.
Your thermostat will typically be wide open when the temp reaches 20 degrees above the rating.
The thermostat in most cars is about 2 inches 5 cm in diameter.
In a race car the floor opening temp of the thermostat is completely irrelevant unless you are running a very efficient and large radiator.
The next video gives you an idea about replacing a thermostat in a car.
Modern car engines operate at a certain range of temperature for optimum performance.
A car thermostat is a small device that sits between the radiator and the engine of a.
Its job is to block the flow of coolant to the radiator until the engine has warmed up.
Once the engine reaches its operating temperature generally about 200 degrees f 95 degrees c the thermostat opens.
Once you re out on the track for half a lap or so your coolant temps are going to be in the 200 range anyway so the thermostat is fully open regardless.
