After rebuilding my motor and getting it running great I started having a problem with the AOD trans, it acts fine when cold but after driving 1/2 an hour it doesn't want back up the way it will cold, it takes more RPM's to get it to back up, kind of like it is slipping in reverse but all the forward gears work fine. Any ideas on what might cause this and will a fluid & filter change help? Anyone have this problem before? TV cable seems to be adjusted properly, grommet on TB is 1 year old and in good condition.
