[Sam Bozzette]

Automan,
Mine did the same thing but cleared out after a while. The lights are located at the top of the guage and are not a tight seal so moisture is going to get in almost every time the car cools off. I had the same problem with the fuel guage on my Harley, the service fix was to drill a series of small holes in the top of the guage housing. It worked for the bike, but I'm not taking this dash apart unless I have to. Sam