Lately mine seems like it shifts wayyy early and like its locking up. As in when going 45 ish how it locks up and the rpms wont go up unless it downshifts. It does it when its cold at low speeds. Like 10-30 mph it seems as though it wont rev up and shifts early. If you give it some throttle it will down shift and act fine until your easy on the throttle. Like 1 minute of driving though and it goes away.