Hello! I have a 1985 Winnebago Lesharo here, it has a 2.2L Renault power train with the electronically shifted automatic transmission. At times the trans messes up, the auto trans light will come on and it wont shift past 2nd gear. Then at other times it will get stuck in 3rd gear on decel and wont down shift. I've changed the trans fluid and cleaned the filter recently, and also tried unplugging the kick down switches and shifting it manually when it acts up-doesn't seem to help. I don't have a scan tool that will plug into the diagnostic ports under the hood, so no good way to look for codes or data. I'm also having a very hard time finding anyone with good information on this particular power train. any help or ideas would be appreciated!! Thank you