Originally Posted by
Ziken
any idea why the coolant just rises and doesnt drain(when i let the car run with the cap off)? or is that normal?
it probably boiled over since it was not under pressure.
Boyle's Law
......temp, pressure and volume are directly related. Without the cap, pressure is not allowed to increase so volume must as temp does. Make sense??
It will also raise and lower normally just because it's getting pumped around through the engine. Usually not enough to spill over too much.