Alrighty, first I'll explain my issue, then I'll cover what I've done for it. I seem to be slow at accelleration a bit. RPM's may be bit high when the trans shifts at lower speeds. at 50 to 55mph the truck hits overdrive I think. if I give any pedel at all it down shifts and doesn't shift again till I back off of the pedal no matter what speed I am at I have to back off for the shift. The colder it gets outside the more drastic it seems to act. Summer time no issues, this showed up last winter too. But not anywhere as bad. The truck sets most all but the winter months, I ride bike the rest of the time. I'm sure I don't have nearly enough info for support yet. I have checked the fluid level and condition, seems well enogh to me. I'll get to the local parts store tommorow, for trouble codes. I'll do more home work tommorow as far as actual engine and tranny sizes. If the tranny bands need adjusting will it show up as a trouble code?