Transmission Slipping on Steep Hill
1995 Thunderbird - 280K Miles - Original Transmission - Serviced within the last 20000 miles/18 Months - Fluid flush
Transmission slips (Like Neutral) when leaving grage on very steep hill - Generally will re-enage if you let off the gas and try again. Does not heppen any other time. Transmission works well in all other conditions. Checked Fluid and it's full.
Any thoughts on cause of problem