Need some advice again. I have a 1995 mustang gt, 5.0L, ~90k miles
that, all of a sudden, runs hot according to the in dash temp gauge.
4 years ago I replaced the ECT and all hoses, belts, coolant and
thermostat (180 degree unit). Never had a problem with overheating
and it never got to the right of the 12 o=92clock position on the
gauge. After not running it for a couple months, I drove it in
ambient 75 degree weather and the gauge was on the =93L=94 of =93NORMAL=94.
It wasn=92t in the red but maybe a needles width or two below. It
climbs to the =93L=94, the fans kick on and then it drops down to the
=93A=94. I just replaced the temp sender to the gauge and have the same
problem. According to Haynes, the sender should read 97 ohms cold and
drop as the engine warms up. Mine read 330 so I replaced it.
Replacement read 280 ohms cold so I got yet another one that also
reads about 300 ohms cold. Is the book wrong or do I really have 3
I have started it cold and held my hand on the upper radiator hose
until it got hot which was at the =93M=94 of =93NORMAL.=94 That hose used =
get hot at the =93O=94 and then fans came on between =93R=94 and =93M=94. =
suspect it=92s the gauge itself but don=92t know how to check it. I went
to my FLAPS and they had a mechanical temp gauge that went in the
radiator but it was $150+. What should my next step be here?
- posted 10 years ago