I just tested it with a Temp gun. The pipe going to the radiator (in the
engine bay) is reading a consistant 180-185* with the heaters on (and with
the heaters off it didnt seem to change) yet the temp guage is still clearly
"HOTTTT". The return water from the radiator is about 150* and the fan is
working (at least on low).

I recently replaced both temp sensors, could that be it? TEMP 1 is what
works the guage isnt it?

Any help is appreciated.

-Craig
'85GL