Q: when in over drive or drive from a start fills like the brake is on until 15mph on 1995 Chevrolet Monte Carlo

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drive and over drive from takeoff hardly move until 15 or 20mph then shilfs out fine always have to use low from stop.
(1) Answer
Internal valve body/ governor problem....have the transmission serviced.... drain, filter change and refill .....along with a can of 'Seafoam Trans Tune'.... that may help with a sticky valve.... I'm thinking that is why you have to shift it manually.!! (My best guess)... However it is better to let a trans mechanic have a look and test drive first to confirm!
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