Anyone have a problem with a 1991 toyota pickup stalling and bucking only when it is cold out? I have spent thousands trying to fix this and had many things replaced. I have taken it to many mechanics and it still does this. It works like a dream when it is warmer out. when it is cold out and I store it inside it does not do this. I don't have anywhere to normally keep it inside so the winter months it runs rough, it stalls and bucks everyday. any ideas?