I have a 1995 Riveria, 3800 Engine, NOT Super Charged. A couple days ago out of the blue, I put it in drive, the rpms went up, it would barely move, and then it shifted and was fine. Everytime I would take off from a stop it would do this. I checked fluid and it was a little dirty but fine. Then it started acting the same way in reverse. After looking further, there was a wire that goes from transmission to under the cover where you put oil. Plugged it back in and the car started idling smoother but when I put it into any gear, nothing happens. There is no shifting at all. What could be the main problem? I don't have a lot of money to put into car repairs. Any suggestions would be appreciated.