HELP!! Spooling sound from engine

[McBadass]

So I first noticed this last night. in my 03 NA P5 From the passenger side of the engine bay there is a spooling/whining sound. I took a look and its either the pulleys, alternator, or something from that area. Its only noticeable from 3+ rpms but so far hasnt effected any performance of the car. If you got any advice, info, or ideas on what this could be I would greatly appreciate it.

 

[808MP5]

Vac leak?

 

[HKPRO5]

Do you have an auto or manual?

 

[McBadass]

manual. I dont believe i have a vac leak because my idle isnt bad. You can also hear it as the RPM's decrease and the noise has a smaller frequency in lower rpm then higher. The higher I go the louder it gets )^;

 

[McBadass]

any and all suggestions will help. I want to try to fix this friday so I need some more suggestions on what to look for

 

[hurleyblink]

i get this too.. when in neutral push the gas dont hear it if you hold it down but when you get to 3k rpm then let go it sounds like a turkey call.. im thinking its an exhaust leak from the manifold. just my 2c

 

[batou079]

sounds like an electrical whine?... sometimes occurs with bad grounds.
if it was an exhaust leak from the manifold wouldnt it throw an CEL?

 

[tweety2300]

Exhaust leaks don't always throw a cel and if it does it can take a day or 2 before it throws it. Vac leaks don't always cause a bad idle either. I had the same problem a few weeks ago but it went away almost sounds like a really quiet supercharger. I would say check power steering pump all pulleys and belts

 

[McBadass]

Well i constantly have exhaust problems and currently have a CEL that comes and goes. The sound also comes and goes but when ive tracked it down to the passenger side of the engine bay. I have all new belts (5k or less miles) so i would say exhaust or alternator. it definitely sounds like an electrical whine tho like one of those wind up flashlights or toy space pistols