Hello,
I've been reading this digest for a long time, but haven't written
anything in awhile.
I decided today to do a coolant drain and flush and replace all the
coolant hoses. While doing that, it sounded like a good time to get the
original temp gauge back in place and operational. The reason I replaced
it with a bourdon unit was because it would make its way up to full hot
and stay there until the car was shut off. It looked like it was
working, but it wouldn't stop in the normal range. The bourdon unit said
the temp was between 160 and 200 depending on the weather and driving
conditions.
I've been told to check the voltage on the terminals that lead into the
temp gauge. With the switch on but the engine off, it's getting a
constant 11-12 volts. It's supposed to fluctuate between that and 0, but
I don't know how much time there is between each fluctuation. This is
supposed to be a sign of either a bad voltage regulator or a
misconnected wire.
Now, where is the voltage regulator? The books say it's up under the
dash. I looked up there and saw something near the top of the underside
of the dash that had four terminals on it, but nothing was connected to
it. Where is a common location to put a replacement regulator and what
would it look like? I'm kind of impatient about stuff like this, so I'm
starting to think that this is one of those DPO problems that are hard
to solve at best.
Any ideas or suggestions would be appreciated.
Thank you,
--
William T. Killeffer
wkilleffer@comcast.net
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