Converter Staying Locked And Stalls Truck
 

ok so today I figured it was a good time to hook up my second trans cooler that has a fan for when I am towing. get it all hooked up take a test drive when going from reverse to drive truck feels like I just dumped the clutch that I don't have but drives just fine. get to a stop and stops fine take off drive temp runs constant 142 once warm drive down the hill back up the hill got to a whoppin 148. Get home pull in drive way go to back up and dang near stall put in N to check fluid it's perfect. Put in reverse truck dies.. so restart go to drive truck stalls... so I check my fluid flow by taking off return line and measure time to fill a quart. do same test by removing line out of first cooler flows the same time. so I take line going from trans to cooler and check there without flowing through any cooler same flow rate... I did refill trans after each test to keep it full. Reattach everything truck still dies.. so whats it doing? hts valve body been in for 1.5 weeks, have billet converter billet input shaft aftermarket pan... fluid is perfect..

Mine did this i had to install a diode in the PCM ,Give Suncoast a call

I got my goerend transmission installed over the weekend. I had to install the chip dave sent with the transmission. It is the "valve body assist" i don't know if that is similar to the diode that you installed dieselminded. But my transmission works flawless now.

so this is not a solenoid problem? I have pressure to lock converter on start up and I have no check ball in my system and it usually takes a good 20 seconds or so to make my truck want to move but I can go right now and it wants to stall. But again it will drive and shift gears for me... I am waiting on calls back from this so no answers yet. any help appreciated

still no luck and no answer contaced and told restriction problem...

Some one needs to get a hands on diagnosis / testing , it could be a valve , it could the electrical control on the valve .
I had a front wheel drive chev in the shop some time ago , it turned out the a resistor was cracked in half , so once the rolling speed of the car got slow enough , close to stopping , the locked up TQ would kill the engine .
This is far more of a diagnosis than most shops seem to bother with , but when it is , like I did , it can be a cheep fix [ from my end ] , the resistor was under a side cover of the trans , so the hole sub-frame / eng. & trans had to be dropped to remove the side cover , but then matching up the broken resistor at Radio Shack , and putting into a pinch fitting , problem solved .
Detailed testing pays for its self .

took down to a local shop today turns out the stator is out. converter wasn't locked but was at ultra low stall. contacted tcs and sending it back they will cut it open fix it and send it back.