4r100 Torque converter or solenoid problem
Hey guys, I have a f150 2002 with a 5.4 and 4r100 (yes im sure), and a week ago my torque converter started getting stock (locked) when i came to a stop making the engine stall (it took a couple of minutes before my engine got warmed up). I checked the codes and got 0740 and 0743 which relate to the tcc solenoid malfunctioning. To make sure the tc wasn't physically stuck y cut the purple wire that signals the solenoid to lock the converter, the truck ran fine and as expected the tcc never locked, so I thought I norrowed it down to the solenoid pack, which i bought (300 bucks ouch) and changed it yesterday. Today again the same thing started happening and the truck is throwing me the same codes, so im a bit frustrated. I don't wanna go ahead and buy a torque converter without knowing the real cause, any ideas of what could it be? I didnt see any melted wires down there but could my long tubes be shorting that wire out randomly in an unseen place? or could my tc be bad?