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Discussion Starter #1
2008 Ridgeline RTL
85,000 miles

Fan ? Blower Motor ? Whine and Hum

When fan is on, whether for AC, Defroster, or just for air circulation, Sometimes I hear a whine/loud hum. The fan blows both low and high and noise stays the same. If I turn off the fan, AC or defroster the noise stops, except sometimes I get the same noise even though everything is off. It sounds like the noise starts and stops (when fan is off)

Thanks for your help
 

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2008 Ridgeline RTS in Billet Silver Metallic
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22,577 Posts
Just curious if you've changed the cabin air filter? If not, it's very simple to do.

I don't recall hearing any sort of whine or hum on either of my Honda vehicles. My Pilot has developed a fluttering sound (sounds like the hvac mixer doors are possessed).
 

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Had the same thing on mine. Took it back to dealer and they replaced the power steering pump. Problem solved. Same part number as Odessey and they have a service bulletin on it. Mine was under warranty.
 

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Discussion Starter #5
Problem Solved!!!

It seems the little plastic bracket holding the hood support rod broke and the hood support rod fell down and was rubbing against the AC fan.

A simple fix.

Thank you for all your help.
 

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There is a open recall on the blower motor. I just had mine done! Blows like a hurricane now....before was weak and noisy.
 
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