I don't if this is normal or not, its not really loud or obnoxious, thats why I am stating that, but it sounds like there is some sort of air leak sound coming from the engine somewhere and it doesn't happen when it is really cold outside, I was just curious, is this normal, if not, does anyone know what it may be. The car doesn't feel any different performance wise...

 

does it make
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Sound, then you have an air leak, actually vacuem leak.

just trace it with your ear until you find it, if not do as I did just replaced all the tubes at ones, get about 5 feet of vacueam tube. By performence wise you just dont feel it, but the lose is ther or gain which ever comes first.