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Reverse buzzing noise??

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Old Aug 20, 2010 | 10:52 AM
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Reverse buzzing noise??

When i put the truck in reverse and start backing up, i get a buzzing noise from what sounds like under the truck when i start giving it gas to move. Notice it both when unloaded and loaded, but seems to be more noticable when i have a trailer on or backing up a hill. What could this be? It is kind of intermittent too, not always consistant but happens more often than not
 
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Old Aug 20, 2010 | 11:09 AM
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Could it be your back up sensor?
 
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Old Aug 20, 2010 | 11:11 AM
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if your talking the sensors on the bumper i don't have that feature on my truck. Almost sounds like a pump buzzing noise ?? Not sure what it could be. I don't notice it at all in drive even with a load. Just reverse.
 
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Old Aug 20, 2010 | 11:39 AM
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Check the fluid in the power steering pump.
 
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