But, if the temp sender is also in the rad, doesn't that equate to an equal
pressure for ths comparison?
> From: "Jim Johnson" <email@example.com>
> Bud wrote:
> Years ago, I stuck a
> > thermometer in the radiator tank, with the engine starting from cold,
> > idle, and just noted what the thermometer read, compared to the gauge,
> > as the engine warmed up. Pretty easy to do, and it won't puke much
> > coolant out of the open filler plug hole, while idling.
> Bud.... This also won't give you an accurate temperature! Recall:
> PV = nRT
> Temperature (T) is inversely proportional to P (pressure) and V
> (volume). If you leave the radiator cap off, the system is not
> pressurized thus Temperature will be different than if the system is
> pressurized as it normally would be.