[s-cars] intermittent oil temp gauge

[Keith Maddock]

Fellow s-heads,

My oil temp gauge seems to be intermitently dropping to the full low
value - usually stays at correct value and bumps down on a series of
rough bits (no shortage around Detroit area this time of year!),
occasionally it will stay at the low value for a few seconds until the
next set of bad bumps.

I assume this is a loose wiring connection at the gauge or sender -
any BTDT common cause for this before I start barking up the wrong
tree?

Cheers,
Keith