97 tarus with a 3.0 automatic,,,type U engine,,probably has O.D. anyway,,it gets to 40 mph and acts like it doesn't know what to do as far as shifting goes,,,is there a VSS that might be the problem?? You have to baby it when puting it in and out of gears to avoid "thump",,I've heard they are known for tranny problems,,,is anyone familiar with these???what can I look forward to in the future???