I own a 1994 JD 1070 which has gremlins messing with the temperature gauge for at least the past ten years. It has been worked on by two different dealerships. There are still problems. It appears the humidity might have something to do with its intermittent operation. The sending unit has been replaced and possible shorts in the wiring have been checked. I think the problem is in the dash unit. The fix for this is a pricey new instrument cluster. Any suggestion?