[jamvan]

I had the same problem with my fuel gauge on my 289 FIA which also has Smith gauges when I turned on my dash lights. I was so bad that you could not even see the face.

I tried the hair dryer recommendation Bob P. suggested, which did not work (I just made me sweat a lot and wasted 3 hours of my time). I then tried leaving the dash lights on for a few hours with the bulb partially out figuring that would dry it out, no luck.

I then discussed the issue with Nisonger who recommended that I either do the following: replace the gauge ($95) or have it rebuilt ($60 + 2 weeks service time). I decided to just replace it.

I did check the new gauge before I installed it to make sure the new gauge was properly sealed. Worked great.

I have been told by many if moisture gets in the gauge (either when it was initially built and sealed or develops over time) save yourself the headache and time, replace it.

Best luck.

jim