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Buzzihd Beah

In article ,
wrote:

On Sun, 17 Aug 2008 05:56:35 GMT, Buzzihd Beah
wrote:

symptoms:

sits at 160 when batteries are off
jerks down slightly when the ignition key turned on
goes up to ~ 175 when the engine warms up

are they fixable at all?

A handy tool for working on these things is a 250 ohm potentiometer.
This will closely match the output of the typical sending units.
Connect one side of the pot to ground and the center wiper to the
gauge on the sender terminal with the sender disconnected. Start at
the center of the pot and sweep it each way to watch the gauge move.
Stay away from the extreme ends because that will probably drive the
gauge into the stops.

Thanks, great idea! Eventually I'll replace the gauge. But, at this
time, what I need to know is that it doesn't get stuck at 175 when the
temp in fact goes higher.