In the moring when it is relatively cold, say.... under 40 degrees, when Im driving and my temp needle begins to move my car whistles real loud and it is consistent with my rpm's. Also I cant figure out where its coming from because it doesn't really make the noise in park. It is really loud, and Im not sure what or where its coming from. Also, My CE light did come on once and then went back off. I cant check codes I still need to buy a code checker. This is usually accomidated with a rough idle as well. I have a feeling the CE code will be some kind of mass air flow issue.
Any help would be appreciated...

P.S. I cant find any holes anywhere.