Recently bought a 95 aurora engine light is coming on and now is shifting hard into drive and reverse. Otherwise runs good. I have unhooked battery and rehooked, and that turned off check engine light for a day and it shifted fine then returned.Any help for a new owner?Thanks

best idea is to get that code read. It will likely lead you straight to the source of the problem. I am not sure where to get an OBD 1 code reader. It may be worth a diagnostic fee at a good shop.