I have recently had the tank dropped and cleaned in my 1998 - 38' Country Coach Magna. When I got it back the tachometer spins in the wrong direction and the MPH gauge jumps back and forth between the actual speed and about 10 to 15 mph over and back. I have had the coach to 2 different shops now and no one seems to understand what is going on. The shop that has it now has been looking for schematics for over a week now and still hasn't been able to find them.
Has anyone encountered problems of this type and found a remedy or does anyone know where I might be able to find the schematics for the dashboard cluster in this model coach.
Any help would be greatly appreciated.