It looks like you're new here. If you want to get involved, click one of these buttons!
2001 Outback AT hard upshifts from 1st and loss of power at highway speed
Vehicle was recently purchased with about 110,000 miles.
This intermittent problem can either come on at low speeds (won't shift out of first until 3500+ rpms, then hard upshift) or high speeds (will temporarily lose power, with rpms dropping several hundred, then returning), but once one of these symptoms occurs, the other is sure to follow in a few minutes. Then, after parking vehicle, symptoms may not reappear for days if traveling only around town, but always do if going more than 25 or so miles.
Describing these symptoms, took to a Subaru dealer suspecting transmission-related problems. They flushed and assessed AT - finding no problems. However, found badly leaking valve gaskets covers, which they replaced, along with some other minor engine components, including some wiring. Day after receiving vehicle after this service, it wouldn't start - dead battery. Had it replaced and then symptoms resumed.
Second trip to dealer service ended in them throwing up their hands. They were not patient enough to replicate the symptoms. Does anybody have an idea?