Very nice folks, now about your problems.
I bet 1993 SLE has it right. If you listen to the noice in the engine bay, does it appear to be coming from that big thing on top of the engine? If so, that'* your supercharger and Pat is right about it being a coupler.
It costs about 80 dollars total in parts to change the coupler. You'll need the coupler itself, 2 bottles of supercharger oil (technically you need only 1, but get the second anyway), a supercharger gasket, 2 yellow coolant o-rings, a throttle body gasket, and while you're at it, the fuel injector gasket set since you'll need to pull they injectors anyway.
Regarding the heat, I haven't had that problem with my 95, but I've heard the response to that over and over being what 1993 SLE said again.. the air mix actuator door.
1995 SSEi - Totaled on 6/6/6 by some jerk who drank at 9am. WEAR YOUR SEATBELT! It saved my life and it can save yours too.