We just got back from a week in Orlando. The Yukon ate up the miles with ease, except where the traffic got backed up (mostly I-95). I noticed gas in FL is about $.50/gal more than SC. And don't get me started about FL drivers (I'm sure it's none of you).
Right after my first FL fill-up, I noticed the engine idle started getting rough, and hunting a bit, followed by some hesitation just off idle. I was worried I'd messed up the throttle body, or not seated the connector when I cleaned it the week before. It turned out to be bad gas (93 octane supposedly). After a dose of injector cleaner and another tank, it cleared right up. Unfortunately, when I pulled the connector to check it, I broke the locking tab. So now I have to replace that. No good deed goes unpunished. It looks like de-pinning/re-pinning the connector is pretty easy, so I'll grab a shell at the u-pull-it and get that fixed.