I just had a problem with an erratic temp guage, and it turned out to be something really stupid. When the car was restored the supply tank was ceramic coated along with the headers and water tubes. Also the temp sender was installed with teflon tape. Good ideas, right? Wrong. After a while the guage started to read erratically. Turned out the sending unit was not getting a good enough ground. The culprits, the ceramic coating and the teflon tape. We eliminated the teflon, and wire brushed a 1" spot on the tank and the tank bracket for a better contact, and VOILA!! Instant fix.
Eric
[This message has been edited by ETolnes (edited 11-25-2002).]
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