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Old 06-24-2008, 09:24 PM
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Default Squeling noise under hood above 2000 RPM

I have a 2005 Nissan Pathfinder with the V6, when the RPM's go above 2000 something under the hood sounds like a squealing / rattle noise and the sound does not change pitch the higher you raise the RPM's. The serpentine belt and tensioner have been changed.
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Old 06-25-2008, 07:40 AM
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Was the noise there before the changing the belt and tensioner? If you open the hood and raise the RPM to over 2K can you still hear it? The idler pulley (#7 See Figure) or the generator pulley (#3) can also produce that type of noise.
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Old 06-28-2008, 01:31 AM
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The belt was squealing every time you started it and more so in the morning after a rain. The noise was not present before changing the belt and tensioner; it started about a month after the belt change. Yes you can hear the noise with the hood raised when the RPMs are above 2K. Ill pull the belt back off and check those pulleys out tomorrow.
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Old 07-26-2008, 07:36 PM
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My 2005 has been doing the same thing. I just replaced the belt and tensioner. I still hear the noise. Does anyone know what could be the cause of this noise? It seems like the noise goes away after the engine is warmed up. I assume that is because the bearing warms up and expands. Can anyone give advise where to go from here?
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