I'm trying to figure out whats going on with my trans without spending a load of money. back story: trans was toasted Oct 2012 in the mountains (heat) sat until march 2013 when i bought a monster in a box kit and an atsg manual and rebuilt it myself. wasnt that bad...so i thought but i did screw up a little. when i put the coast clutch in it was not in the splines properly(didn't know at the time).. trans lasted 3 months until i had to drive home in second gear one night. tore trans back out and i found coast clutch plus my overdrive snap ring came off (didn't know they were weak until after replacing with double looping one). in addition to this at some point i realized the solenoid pack i got with my rebuild was no good. it was slipping torque converter in OD. i put my original one in and slip went away. so after fixing my overdrive and coast clutch (put new frictions in and cleared all debris with a complete fluid flush) my trans was doing great. back in december it got real cold for here (18degrees) and the solenoid pack symptoms came back. i ordered a rebuilt solenoid pack and put it in. problem is still there. i have a tc lockup switch and i can feel it lock in gear but there is still slip. i thought if u engage tc switch in park that it would kill the engine, mine doesnt. and there is no lock when in reverse. also sometime when i first try to take off in the morning it acts like it has to reprime my pump.. like the fluid has leaked back. wednesday i have a sonnax bypass valve kit im installing but i dont think it will fix this issue..... any thoughts. i plan to go to a trans shop for a line pressure test but that is weeks away for me.