Ok so my Neighbor has a 1999 newholland 8360 with about 5000 hours on it. They have had it for 2 years, it works great. Recently it stopped being able to go into reverse. No error codes. Local NH dealer don't have a clue. All they tried to do is change a Flow sensor this made it work for about two days. It will work fine when its cold out, temps below 60. But as soon as it warms up, or you use it for anything reverse will stop working. Also when you put it in reverse something defiantly happens as the tractor sort of hesitantly tries to back up, but then stops moving. It does not matter what speed you try, it will not back up. Any one have any ideas?