Engine & Internal Chat about beefing up your engine's insides here.

**Whining/Struggling sound under hood**

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Old 05-30-2009, 01:00 PM
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Join Date: Jul 2007
Location: Detroit, MI
Posts: 182
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Sounds a lot like an alternator, if it follows the electrical load. Not sure about the park thing, I'd think you'd hear it all the time.
Try to take it to a parts store that tests the charging capacity for free - like an Auto Zone or the like - normally if you have one diode shorted in the alternator you'll get the whining and I'm hoping lower charging capacity.
If the noise was there all the time you could have removed the belt and listen if the noise was still there or not.
 
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