S2000 Under The Hood S2000 Technical and Mechanical discussions.

whine at idle

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Old 05-16-2007, 06:18 PM
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Default whine at idle

I get a low pitched whine towards the front of the engine after driving for 20+ minutes on the freeway. It comes on at random, but ONLY after freeway droning for a while

If I'm just driving around town it wont come on... I've popped the hood and the sound is definately coming from the front of the engine... but I cannot pinpoint where...

Anyone know what it could be?
Old 05-16-2007, 07:41 PM
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Do you have a cai?
Old 05-16-2007, 08:54 PM
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Not currently, but there was obviously one installed before I had the car.
There is an INJEN sticker on the mini window wind blocker, as well as some hoses with red INJEN letters on them, also the right side fender liner was cut.

I have gone over all the vacum hoses and made sure they are all tight, and on correctly... Anything else I should check?
Old 05-17-2007, 11:54 AM
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I made sure the belt was tight today... don't think it is that
Old 05-18-2007, 02:56 PM
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anyone?
Old 05-18-2007, 04:28 PM
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no clue
Old 05-19-2007, 03:31 AM
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you sure its from the front? Maybe its the fuel pump..
Old 05-19-2007, 11:48 AM
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I figured it out

It's coming from the alternator (that I replaced about a month ago)

Should I take it out and attempt to grease the pulley or something?
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