Thanks CP & DD
I've read water gets forced up the pitot tube, if it doesn't get blown out at winterization it will stay in there? Next season more gets forced in there, on and on until the water is forced into the black box that controls the speedo tach oil water and volt Gage's. hopefully it's this box which has been common for the 99-01 models. I could swap it myself but I'm just a parts changer and don't know the function of the complete system, so I don't know where else to look.