I have an o7 cobalt ss/sc, i was wondering for the longest time now my coolant line going to the supercharger has been leaking just wondering where it may be going or if it should do that??
second question, I have a weird whining noise when i start out(no its not the supercharger whine lol) it sounds like a brake shield rubing or something but i know its not that its just when the revs get up slow after the motor gets warm..can anybody help me please?

 

leaking = not good. May be a loose return line, if your car is still under warrenty bring it in, they can fix that in a matter of minutes, for free to boot lol

as for your other problem, if it under warrenty take it in. Personally dont have a clue what that could be

 

i actually took it in to do warranty as i only have 80k on it and they said they wont fix it due to me having an aftermarket exhaust and cold air that was on it since i bought it from gm