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Old 03-22-2007, 10:01 PM   #1
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Default Whining Noise

I have a 1998 Pontiac Bonneville Se it has 113,000 well maintained miles on it. I recently changed the power steering pump and high pressure hose.But that is not the problem,the problem is when I step on the gas I hear a whining noise and seem to have lost some power.

Does anyone have any ideas what this may be?
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Old 03-22-2007, 10:09 PM   #2
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Sounds like you have a leak in you intake gaskets
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Old 03-22-2007, 10:18 PM   #3
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I dont see anything leaking like antifreeze or smell anything. I was thinking it might be something in the belt area? I have a new water pump,belt tensioner,new belt but the only thing I didnt change is the alt. If it is the intake,how much does something like that cost to have repaired?
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Old 03-22-2007, 10:40 PM   #4
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I don't know why an intake leak would cause a whir.

Take the belt off and let it idle for long enough for you to determine if the noise is still present.
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Old 03-22-2007, 11:56 PM   #5
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The rear bearings on the alternator have been known to be an issue. It is usually described as more of a squeal, than a whirring sound, though.
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Old 03-23-2007, 08:15 AM   #6
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On letting it idle w/o the belt. Keep in mind that the water pump is driven off that belt. If you start it up w/o the belt and don't hear the noise, then it'* an accessory or pulley.

Turn each by hand feeling for any lack of smoothness or wobbling.
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Old 03-23-2007, 11:15 AM   #7
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Default Re: Whining Noise

Quote:
Originally Posted by RMiller526
The problem is when I step on the gas, I hear a whining noise and seem to have lost some power.
Could we have a belt tensioner in the initial phase of failing
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