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Old 07-05-2008, 05:08 PM
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Default 2001 Altima Loud Whistle Sound

In the past two weeks I have noticed a loud whistling sound coming from the engine -- the first time I noticed it was on the interstate and it frightened me enough that I exited. The whistling stopped the instant I put on the brake. Over the past few days the whistling has continued intermittently -- sometimes it will stop if I just slow down, it happens now at any speed, and tapping the brake doesn't always make it stop. My husband did a "hood check" and all my fluids are fine. I have kept up my oil changes, etc. I have approx. 94,000 road miles. Any ideas what it might be?
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Old 07-05-2008, 07:28 PM
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hi welcome to the forum. usually belts or the belt pullys might cause this aslo an alternator may cause a whistling sound. have u done a belt change lately if not i would recommend it. autozone or orylies do alternator checks for free. if your husband is pretty good with cars or is confidant u could get a long screw driver and put it on the alt and when u turn the car on put your ear to the handle and see if u hear sound that is if u can reach it they also have statiscopes but instead of the thing at the end they have a screw driver to allow for a longer reach. that is if the noise happens when its just sitting i wouldnt suggest while driving post with your findings

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Old 07-06-2008, 07:12 AM
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Thanks Sergey85 -- I didn't know that Autozone would check my alternator for free. I'll get it checked out. I'm thinking it might be a belt slipping.
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2001, altima, loud, sound, whistle

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