2003 tranny intermediate late shift
 

My 03 Dodge started shifting out of first late (3000 rpms) and when this happens it will down shift one gear hard. Restart it and its fine for a few days. The fuel pedal is harder to push when this happens. The Dodge dealership had us replace the ECM and TCM. 2 expensive parts that didn't fix it. I seen lots of issues on here that sounds like mine but didn't see the fix. Can someone please put us on the what's wrong?
Thanks Doug D