Expert: Skip Bollinger - 1/22/2009

Question
I recently purchased a 92 Ford Explorer 4x4 4 door automatic with overdrive and a 4.0 v6. When i received the vehicle it wouldn't move unless taken out of overdrive and put in 1st. It would shift into second and third manually but didn't want to hit overdrive until it is warmed up. We assumed it was the transmission filter so i changed it along with the fluid and pan gasket. It ran fine for about four hours but still had to be shifted manually otherwise it would slip. by the end of the day it had lost all power in the forward gears and now will only move in reverse. Is a rebuild necessary or could it be a seal or the front pump. Any advice you have will be greatly appreciated.

Answer
Casey,
  I'm the LAST person you should be asking this question. I'm a Parts Specialist as described in my Profile. I will, however, offer some thoughts for you to consider.
   Looking at the costs of trying an additive VS a rebuild, I'd try an additive first. There are a couple of companies called "Lubrimatic" and "Lucas" that I would look into.
   In OLDER G.M. applications, when a vehicle would back up but not go forward, it was the front pump. These newer vehicles, especially Ford, I have no idea.
  That is about all I can offer. I'm sorry but am trying to be up front and honest with you. I am NOT a Tech!! Good luck!!
Skip