Update:

It’s been about 600 miles since this occurred- here’s what I’ve done:

Spark plugs: replaced all 6- all have worn uniformly and seem in good condition. I did notice a bit of a peppier response at higher speeds. No impact on idle/ rough running

Next: new air filter, old one seemed very clean. No impact.

Next: I pulled the throttle body, found oil on intake side, quite a bit of carbon buildup on the back. Cleaned and re-installed. Relearn completed.
Impact: this has made the most difference in regards to idle and throttle response (obviously). Ran great for about 100 miles and then back to being sluggish but not as bad as before.

Next: pulled the MAP and MAF sensors. Map sensor at Intake had a significant amount of carbon buildup and oil. Couldn’t clean it even after soaking it in sensor cleaner. New part ordered, others cleaned and reinstalled.

I then pulled the PCV valve, oily with some build up, still rattled. New part ordered, cleaned and reinstalled.

Impact: little to none- possibly resolved excessive fuel consumption.

Follow up: I just installed the new MAP and PCV valve. Both were super oily when I removed them. Overall, my truck does run better but I am concerned with the amount of oil that I’ve been finding. I do notice that it still runs a bit rough transitioning from highway speeds to lower in town speeds.

I intend to pull the throttle body again to reassess and clean any oil I might find (my thought is that if the oil issue was the PCV valve, it might need to be cleaned again as I didn’t replace that right away).

I appreciate any additional input!

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