2001 Mercury Villager Estate transmission trouble
The transmission goes into reverse just fine. When I put it in Drive it takes off just like it
is suppose to. It shifts into second perfectly. When it shifts into high, it will stay for a
couple of seconds then down shift back to second, then go back to high, then down to
second. It keeps doing this until I get up enough sped for it to shift into overdrive. once it
is in overdrive it is fine until I have to slow down or stop, then it is the same thing all
over again. What could be causing this?