Been working on this tractor for quite some time now. The tractor will run in every gear but only in the first range on the power shift. When trying to go to the other ranges on the power shift the tractor just stays in neutral. Has a brand new computer board and range selector installed. Im getting 12V to the computer from all the gears, but for some reason it wont send the 12V back to get it to go into 2nd 3rd or 4th range. Checked the pressure on the solenoids and they are all getting pressure out of the transmission so i dont think its a clutch problem. Heres the deal, i can get the ranges to work and it will switch, but i have to run a hot wire from the battery and jump the wire on the harness for each individual gear to change into the correct range. Stuumped on this and anything will help.