whats going wrong with my transmission
start out in drive engine revs up to3300 RPMS/25MPH BEFORE SHIFTING INTO 2ND THEN REVS UP TO 3300 RPMS/45MPH SHIFTS TO3RD 2200RPMS 55TO 60 MPH OVERDRIVE
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Answers
Sounds like you are losing internal pressure. Time to have it tested. Once seals get old inside, or wear tolerances widen, the transmission does a kind of "internal hemorrhage".
If you're motivated, you might drop the pan and look for metallic debris--good sign of worn clutches.