What happens when my car won't go in reverse or drive? on 2006 Ford Taurus

My car starts, but won't reverse or back up. My car won't drive now.

Asked by for the 2006 Ford Taurus
my car start, but it wont go in reverse or drive is it my transmisson or transmission screen
2 answers
Check your transmission fluid level with the gear shift in Park and the engine idling. Fill as needed with the proper fluid, I believe it's Dextron V but look in your manual to make sure and then find the leak and repair it. If the level is ok, then take your car to a good trans shop.