2001 Dakota 4x4 4.7 lost all gears after hitting dip in road...transmission light came on...also a whining noise which sounds like pump...changed filters...
2 Answers
When you changed the filter, what did the fluid look like? Any metal pieces in the bottom of the pan? The whining noise is not a good sign. This could be the pump that has worn out. I've had a few transmissions do this. The pump is essentially 2 gears that mesh together and "pump" the fluid. They wear out over time, or the housing wears out. If this is the case, it's rebuild time..