12VRoush

Okay i have not been able to get my gov. springs to the right setting to where im hold the right amount of volts on the tps....because i dont have the right voltagethis is making my truck shift in and out of o/d. so i installed a 5k linear pontentiometer and this solved the problem it was great for about a week! and now it shifts down and up into and out of 3rd right before it goes into o/d ? my lock up was njormal it would come at about 48 mph and it was awsome now i have to crank 2500 rpms and it will come around 60 and some times it wont come at all....?? i dont know what to do...?? i used 22 gauge wire and i hooked everything up correctly ?? what has happened? the pot is not burnt up cause it wioll hit overdrive sometimes?? pls help its killing me...