At 06:23 PM 11/30/2010, mark drillock wrote:
>>I will add that with the old engine in, the gauge hardly even
>>budged off the cold line, but the red light did come in when
>>overheated (twice when hoses blew).  Which leads me to believe that
>>it is the gauge that is bad.

I'm going to guess that it was the low coolant rather than overheat
that actually triggered the light on those occasions.  The low
reading -- dunno.  Pegging the gauge sounds like either the wrong
sender or a shorted sender.  If you actually short the sender wire to
ground, you'll smell hot stuff coming from the gauge within a few
seconds if the gauge is out on the bench.

Yrs,
David