Hi guys. I have a 93 fzj80, gas engine. After the truck sits, when I start it there is no reverse,nothing at all just like being in neutral,and when put into drive the engine stalls. I've discovered that if I Rev it up to about 2500 rpms, dump it into drive while mashing the throttle, after a few times it breaks free and seems fine. I then have reverse and all forward gears shift fine. Until I turn it off and it sits again. Torque converter? Shift solenoid? What do you think? Thanks for any help I appreciate it.