so for a few weeks now my tranny has been acting strange..i drive all around for my job so that has to take a toll on the car but anyways my tranny has been staying in 1st gear and is basically not even thinking about shifting to 2nd on certain occasions, after a few minutes it does eventually shift to 2nd. After driving it for a few more days i was feeling it pretty much not catch as they should, and this past monday it ultimately just gave up during work. The car would not go anywhere in D,3,2,1 or reverse i let the car sit on the side of the road until i had it towed. I started it up when the tow truck dropped it off and it went into gear fine and would accelerate but after it warms up it will stop working. Im really curious about why it would work when it is cold and will stop when it is warmed up. SOMEONE PLEASE HELP!!! thank you