Dodge: 2001dodge ram 1500 4x4, dodge ram 1500, sensor problems

Question
iown a 2001 dodge ram 1500 4x4 the a/t transmission was going 2gear slow so i change the filter an fluid an now it will not shift into 2gear at all.

Answer
HEY BILLY,DOES IT SHIFT TO THIRD AND OVERDRIVE OR DOES IT JUST STAY IN FIRST? CAN YOU MANUALLY SHIFT IT? WHEN YOU SAID IT WAS SLOW INTO SECOND GEAR WAS IT SLIPPING? WHAT WAS IN THE BOTTOM OF THE TRANS PAN? NEW FLUID IN AN OLD TRANS THAT MIGHT HAVE ISSUES IS A NO NO!!!ON THE DRIVERS SIDE OF YOUR TRANS JUST ABOVE YOUR LINKAGE THERE IS A ADJUSTMENT STUD AND NUT.THE NUT IS A 3/4 AND THE STUD IS A T40 TORX ,LOOSEN THE NUT AND TURN THE T40 STUD UNTIL ITS TIGHT THEN BACK OFF TWO TURNS.RE TIGHTEN THE 3/4 NUT AND DRIVE IT.THE INTERMEDIATE BAND(OR SECOND)MAY BE WORN TO THE POINT THAT IT DOES NOT STOP THE DIRECT DRUM FOR SECOND TO HAPPEN.HOPE THIS HELPS,TIM.P.S. LET ME KNOW! IF IT JUST STAYS IN FIRST YOU MAY HAVE GOVERNOR SOLENOID AND SENSOR PROBLEMS?