On Sun, 13 Jun 2010 14:06:51 -0400, "Mike Sanford"
Mine does the same thing. It's the speedo cable sticking in the
housing. Lubrication inside the cable might help. I was told to use
a graphite oil for this. In cold weather the oils get thicker and
make the speedo bounce.
If your temp gauge is stuck, replace the sending unit (or the gauge
itself is bad). There are no other parts except wire. Of course be
sure the wire is not bare and touching a ground (metal part of body or
engine). Check the wire first.
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