Yes!
When I first bought the truck, I had my mechanic do a complete service. He checked all fluids and lubricants, including the Autotrac II, transfer case lube... ball joints etc.
In addition, the SES came back on. A P0410 code, which comes up as "Secondary air intake malfunction".
I was talking to my mechanic about this and he told me that it's the air pump. So, I went with his best judgement. As he was on the phone with me, he noticed that the hose going to the air pump had been improperly installed. He went out and got a new one, as well as the valve connecting it ($35) and he installed it for me. Apparently, the improper installation of the previous hose had caused it to lean against a very hot part of the engine and actually melt - so if anyone ever has this problem, make sure you've checked the hoses to make sure they haven't melted.
It's just about perfect now! The only thing left is seeing if I can seal the leak in the compressor, if so then I'm all good.
No SES light, full power, and good-standing emissions.
Thanks again guys!