what if my transmission doesnt go into 3rd and just got it rebuilt it goes into 1st and 2nd and overdrive but not 3rd and shifts in the wrong speed
transmission on 1999 Mercury Sable
By all means TAKE IT BACK! There is something wrong with the rebuild.
Bring the vehicle back to the transmission shop that rebuilt it because they should have provided you with some type of warranty
Take the vehicle back to the transmission shop..hopefully you have a warranty on the repair.