2008 Toyota Yaris 2008 Toyota Yaris Whining sound

2008 TOYOTA YARIS
38,000 MILES • 4 CYL • 2WD • MANUAL
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NATHANCD
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I just noticed this sound today, but whenever i accelerate i hear this whining sound. It's hard to tell if it's coming from the engine or somewhere else. It gets louder as i accelerate, so when the engines rpms back down to 1000-1500, it's quiter, and it get's louder at 2500-3000.

Any help or advice would be appreciated.
Jul 29, 2010 at 6:46 PM
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MMPRINCE4000
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Inspect the serpentine belt for wear.
Jul 30, 2010 at 6:57 AM
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NATHANCD
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I tried to look to where it was coming from, and it seems to definitely get louder from the alternator, and it also seems to go away after a while of driving.
Jul 30, 2010 at 3:38 PM
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MMPRINCE4000
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Could be an alternator bearing or tensioner pulley.
Jul 31, 2010 at 10:31 AM