I replaced the solenoid and sensor in my 2007 2500 48RE today to fix the shift shuttle. It did fix the shuttle problem but I still have another problem. When I am rolling about 15 to 20 MPH and try to accelerate hard the engine will rev to 3200 rpm but I am not speeding up. I let off and ease the pedal down slower and it accelerates. It will spin the tire from a dead stop and go. It also does well at highway speed and accelerates. Could this be a transmission speed sensor problem?