I searched for an answer before posting. 1980 diesel Traveler. Occasionally looses power to gauges, wipers, turn signal indicators, but NOT the turn signals or other exterior lights. I would like to get out and work my butt off to troubleshoot this but I am so busy I am really hoping for a solid answer about what is wrong and the best way to fix it. Can't find a solid cause but once today they were off for a bit and only came back on after I had shut everything off for a few minutes. Another time they came back on while I was driving.