My temp gauge was inaccurate/ inoperable when I bought my '84.  My
mechanic measured actual head temps and installed a resistor (where? I
don't know) to provide an accurate temperature reading on the gauge
reflecting the actual temp.  That's all I know but it makes sense to
me and it's been working fine.

On Dec 15, 2009, at 11:15 AM, walkingboss wrote:

> Change mechanic, its electrical. Common problem with the printed
> circuit to
> the gauge/control unit. Search the archives
>
> Howard
>
>
> New thermostat, temp sensors, water pump, radiator and fresh fill of
> coolant have NOT solved it. The mechanic who is doing the work for me
> now says he thinks a head gasket job is in order. Does this make
> sense?
>