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  #1  
Old 03-31-2012, 03:50 PM
00bluegtp 00bluegtp is offline
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Join Date: Jul 2009
Location: South east NY
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2002 2500hd 6.0 whining

My truck has recently started to whine almost like its super charged lol. It sounds like the power steering pump but its coming from the other side of the motor. I cant tell where its coming from but it def sounds like a hydraulic whine. Anyone have any ideas? Ohh and its rpm related not speed related.
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2002 silverado 2500hd with fisher mm2

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  #2  
Old 03-31-2012, 04:23 PM
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BlizzardBeater BlizzardBeater is offline
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Location: Maine
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Water pump, alternator, idler pulley, tensioner, ac tensioner, are all places I would check. Grab yourself a mechanics stethescope and narrow it down. I'd pay special attention to the alternator, they can whine like that.
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  #3  
Old 03-31-2012, 06:49 PM
vegaman04 vegaman04 is offline
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Just fixed this issue on my work van. Ended up being the tensor pulley, replaced the whole thing for $38, this was on a E-250.
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  #4  
Old 03-31-2012, 08:42 PM
dieselss dieselss is online now
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Pull the main serp belt, start truck. Noise gone, pinpoint to one of the main pillows. Noise still there, them either a/c or a/c tensionor. My bet, a/c tensioner
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  #5  
Old 03-31-2012, 09:05 PM
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maverjohn maverjohn is offline
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Sound like a tenioner to me.
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  #6  
Old 04-08-2012, 08:24 PM
dieselss dieselss is online now
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So what did you find ?
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