car has no gears on 1998 Mercury Sable

car starts but when shift to gear have no gears s

Asked by for the 1998 Mercury Sable
Start with the basics - check the fluid. Is it low? Low fluid will prevent engagement.

If it's full, is it brown or black? Could be a sign of internal damage.

Last, there is a remote chance of a Transmission Range sensor problem. Testing that sensor would be a good idea.
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