doesn't shift into overdrive codes po123 & po753

What is your question?

Codes PO123 & PO753 v6 engine. Everything worked fine when parked for several months due to illness. Now the transmission will not shift into overdrive. Replaced the throttle body sensor but did not solve the problem. The truck has a rain leak into the interior we think from the rear windshield and the carpet is wet on the front floor area.

What makes this problem better or worse?

nothing, no change

How long has your 2002 Dodge Dakota had this problem?

A few weeks