My 1999 Ford Explorer will not go into reverse gear. If I put it into reverse, and then quick switch to drive, it will go forwards, but really slowly. Before I end up spending a small fortune doing the transmission over, I was wondering if you’ve seen this before.”
Yes, I have seen that before. Sometimes the transmission has to be removed and the broken parts inside replaced, BUT last year I fixed one like yours without having to pull the transmission off the car. It had a bad valve body, and only the bottom pan of the transmission had to be removed to replace the valve body. So you might check that first.