WOW! Where to start with this one...I guess at the first mistake.
Originally Posted by
tay320c
added 12 quarts of fluid as they required for startup, connected battery cables and started engine. Truck ran for 10 to 15 minute I raised the rear end and tried to run it through gears.
You ran it for 10-15 minutes with only 12 quarts in it? There's your failure. That isn't enough fluid for the pump to always have fluid to pick up. You were running the pump dry for a long time.
The correct way to do this is put in 12 quarts and run it for ONE minute. This fills the torque converter. There is no need to add any fluid to the torque converter before installing it.
Originally Posted by
tay320c
Nothing happened. I check fliud still OK.
It can't be OK with 12 (maybe 15 if there really was 3 quarts in the converter) in it. It should be WAY low. Maybe it's reading fluid from the side of the dipstick tube.
Originally Posted by
tay320c
I shut it down and it still showed no change in fluid level.
That indicates that the pump is not picking up fluid.
Originally Posted by
tay320c
Started it back up not a tire spinning, I gave it about 1600 rpm the trans start making a very high pitch building pressure as the tow/haul was flashing then started chocking the engine down finally killing it.
That's when the pump seized.
Originally Posted by
tay320c
Called the rebuilder no call until the next day. They said I needed to get it hotter and run it longer before putting it into gear.
Bull.
Originally Posted by
tay320c
I put a scan tool on it and NO codes for trans or truck.
There were codes set when the tow/haul light flashed. Your scan tool probably can't read Ford transmission codes.
The next step is probably removing the transmission and rebuilding it. I think this one is toast.