Soo I have a 47re with a full manual valve body in it. Truck shifted perfect I went to lunch came back out went for a drive and noticed the truck was just revin and not in gear after driving a few seconds and shifted into 3rd. I was in 4 lo this truck is off road use only. Soo I realized if I shut the truck off for about 15 seconds and restart it the truck has all gears again for about 20 seconds then acts like it’s I neutral again until you shut it off and wait another 15 seconds or so.. do you think my pump crapped out, or the torque converter went bad. it’s a single disc billet converter.