Sounds like the transmission
Check the transmission fluid level.
he tansmission is gonne and needs to be replaced
Could be a pump problem or broken planetary. Regardless, the transmission will need to be disassembled.
Check Your Tranny Fluid.
check map sensor that was the problem in my 89 2.3 ranger
The transmission fluid filter could be clogged. There could also be an electronic issue, run the test codes on the vehicle computer to see if a problem is shown.
could be a bad motor or transmission mount
A car that won't move when in reverse could indicate a problem with the transmission. It could also indicate a problem in the gear selector.
This is a internal problem, I had same thing wrong and I replaced all I could then brought it to shop and he said the bands are slipping
Could be a linkage problem..
Are the rear brakes working normally?
NO. You have a serious problem. A tranny pro is in order. At 40K miles, my Chevrolet S10 Blazer lost reverse. Since the car was under warranty at that time, I was able to continue to take it to the dealer until they finally figured out the problem. It took them 8 attempts with a "computer diagnostic" until I lost reverse completely. At that time, they were obligated to fix the problem before they could give the car back to me. It was the valve body that needed replacement.