46RE transmission problem

[Mice77]

First, transmission lost reverse (broken snap ring) but had all drive gears. Had local mechanic remove the transmission and took it to a transmission shop for a rebuild. Transmission was rebuilt and reinstalled by the mechanic. The issue now is the transmission drive good for about 45 seconds with no issue and then all of a sudden start slipping and will lose gear and not go anywhere. You can shut the truck off for 10 seconds and start back up and will shift fine but 45 seconds later it will start slipping again and lose gear. You can do this over and over. PLEASE HELP......

 

[Fast69Mopar]

First, transmission lost reverse (broken snap ring) but had all drive gears. Had local mechanic remove the transmission and took it to a transmission shop for a rebuild. Transmission was rebuilt and reinstalled by the mechanic. The issue now is the transmission drive good for about 45 seconds with no issue and then all of a sudden start slipping and will lose gear and not go anywhere. You can shut the truck off for 10 seconds and start back up and will shift fine but 45 seconds later it will start slipping again and lose gear. You can do this over and over. PLEASE HELP......

After the trans begins to slip can you hear any noises coming from the trans? Any whining noise? What does the fluid look like? Are you sure it's full?

 

[Mice77]

After this happened the mechanic called the transmission guy and he thought it was a bad solenoid new out of the box that was put in the transmission. So the mechanic dropped the pan to replace the solenoid. Fluid was in new condition both in smell and color. After new solenoid was installed new fluid was put in and truck continues to do the same thing. No whining or clunking at all