The idle actually seems fine. I can feel it a tiny bit in the idle, but not much. And yep, no check engine light. I wish there was one, so it would give me an idea, but no such luck.
I know it's probably not related, but all this started right after I had new front shocks put on the truck. So in the back of my mind, I keep wondering what those guys bumped, snagged, cut while putting in the shocks.
I'm going to clean the MAF and throttle body today, just because the truck has 145k miles, and I've never cleaned them. Doubt that's the problem, but I'm going to give it a shot.
Still have a feeling that it's either a vacuum leak or cats. Anytime I go from coasting to part throttle, like after turning a corner, my truck starts to go, hesitates/bogs a little, then downshifts and goes.
At this point I'm throwing darts, but something has to stick eventually. Might pick up a vacuum gauge today and see how that reads.
Anyone know the best place to hookup a vacuum gauge on these?