hi to all of you i am new in the forum, just got a liberty 2002 one month ago and having a lot of problems with the transmission,i did a complete tune up including a change oil in the trnny,work for a few days then starting to slip,and engine light come on i got the codesp0867,p0868,p0876,p0841,p0731,p1790,p0944,then i drop the pan again to check on the filter it was ok, after that it work like nothing happen for another 4 days then back to the same ****** keep sliping, any ideas or i am going to need a new ******?