Well I'm officially out of Ideas. Truck has been at the Dealer since 2/3 with a new PCM on order. In the very rare instance, I can get a Ram "cares" rep. on the phone, they have zero info or no definitive ETA for the part. Thankfully my Dealer has allowed me to drive one of their new Laramies while my truck is down, but I really want the RHO back. Who in Phoenix wants to loan me their PCM to put into my truck to even see if that fixes the problem?! lol