words have meaning.
the word [phrase] "Over Heating" has a diff, meanings to people
1: goofy dash meter reads too high or too low.
2: you have solid signs of proof, steam venting from something? where? tell that.?
3: you put the IR gun to the stat housing and other points and sure enough she is HOT.
Never, ever use #1 as anything other than , gee something is not right.
realize the sender for the guage is designed to measure the temperature of water and not air! ( and is inaccurate at best, after all, there are no numbers on it , right ?)
That guage is a toy grade device. treat it as such.
now lets say you have a head gasket just starting to go bad, (not a blow out) but the beginnings....
now you have air (combustion gases) surrounding the STAT and the Sender.
That gas floats to the top , no surprise there.
both devices, will be confused, both will be unpredictable in this mode.
so stop using the dash gauge and invest in a real tool that always tells the truth.
I use an IR gun , as that will save all the burned fingers and spilt coolant.
shine it on , every thing in the loop
top tank
bottom tank rad
all hoses,
thermostat bottom housing.
and best of all look of overfill tank signs.
loss of fluid is always a sign. (short term)
that stat will open ,then close and will go quite nutz trying to do its job and fail at it.
I is not designed to operate in air. or gas. only a liquid.
that should help the weary.
cheers.
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