i am having some bother with the instroments in my 1989 3.5 efi rangey, the lights on the auto and heater controlls work fine, auto lights seam to be on all the time, all instroment lights work (apart from fuel low warning as bulb removed when fiting new tank in trayback build), but the dash lights have gone off so cant see temp gauge, revs on for all id dosent matter to much(small auto cooler meens ceep it below 2500rpm on the road) the speedo when it gets dark, anyone have any ideas