torque converter lockd up?

[zzamud]

04 f350 6.0
slams in gear (r or D) and if foot on brake it dies
feels like converter locked and wont release?
anyway to test tc 'node?
engine off in r or d i can turn driveshaft so if feels like a tc pressure issue
no codes or flashing lights

[zzamud]

New converter. Still same

[melmount]

Y unplugging wires to trans when running. Then put in gear. Don't drive or try to drive it like this but u can see if it still dies. Then u will know the tc s still bing old to lock thru a bad wire or PCM

[zzamud]

Unpluged wires. Still same. Still locks when put n reverse

[melmount]

The converter is staying locked. That's why it's stalling when put in gear

[zzamud]

Yes i understand that. Trying to figure out why. I know what node it is but how to test it? Have snap on solis pro acanner and reads no codes n trans?