The thermostat controls coolant (and, through it, engine) temperature by regulating the flow of coolant through the radiator. A bypass tube allows coolant to bypass the radiator and flow back into the water pump when its temperature is low enough that the thermostat is closed.
Which of the following regulates the flow of coolant through the radiator?
water pump |
|
water jacket |
|
thermostat |
|
crankshaft |