Re: Code P0700 on 2006 PT Cruiser
spice; It is unlikely that the tranny was totally rebuilt. It takes too much time to remove and replace [and clean and inspect] all the parts. Most shops repair the tranny by replacing the obviously bad parts and new clutch plates and seals. The dealerships only install factory rebuilds [usually]. The torque converters are a weak point in some years. And cannot be inspected for wear or internal contamination.
Your leak might be as only a hose that fell off/loose. Fill with atf+4 only. Also, after you add oil it takes about 5 minutes to get a good reading on the dipstick as the fill tube seems to hold fluid for a while.
I wish you better luck than I had.