I have a 2003 jeep wrangler tj 4.0. Just did a transmission tune up, changed the filter and gasket & put in new atf+4. I’ve been having this problem prior but it’s gotten worse since the tune up. Automatic, hard shifting from 2-3, then hard shifting back down from 3-2. Any ideas on where to start? I’m hitting 200k miles this week, I’m assuming I’ll be needing a rebuild in the transmission but trying to avoid that for long as possible. Anything helps. Thank you in advance!
