UPDATE: EGR was fine, so I did not swap it. PCV was slightly clogged. Replaced it. Cleaned the MAF. Cleaned the throttle body, changed the rear diff fluid. Also discovered that the fan clutch is toast. No one local had one. I can source one from car-stuff.com for ~$60, but I need to wait. Believe it or not, I might be selling it today. Already informed prospective owner of fan clutch, etc. :lol:
Oh, and why the Hell did my driver's side window regulator suddenly stop working? It was working down South a week and a half ago. Does the cold do this, or did it just crap out?