Once the Active Fuel Lifters lock and fail to unlatch it really wears a cam down. They could even be sticking and you not know it because there is still a short transition between V4 back into V8 operation. The oil gets too broken down and the materials within the oil (bearing metal etc) starts to build inside the lifters causing the problem.
I really dislike the Dodge V8's simply because they cram them into small engine bays. GM isn't much better but I rather pull heads off a Yukon than a Durango any day.
They also make AFM delete kits for Dodge and GM V8s. You could buy the kit which comes with a new cam and lifters plus all the gaskets and a OBD programmer for probably the same cost as OE parts if not cheaper. I have been trying to convince my boss to let me use HPTuners and install those kits to Customer Pay vehicles but because I work at the dealer he won't let me.
Edited by Turbo Cary, 08 July 2021 - 07:45 PM.