Nissan Frontier Forums: Humming sound going 40mph

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Topic: Humming sound going 40mph

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ktsienna
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Posted: Feb 06 2011 at 2:48pm \| IP Logged

I just started to notice a moderately loud hum going 30-45mph. The HUM is not noticable at any other speed. Is there a way to tell if it is the transmission or the wheel bearing?

Thanks,

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2004 Nissan Frontier
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frontierguy
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Posted: Feb 06 2011 at 6:39pm \| IP Logged

Could be tires. Auto or man trans? Possible final drive,
does the noise lessen when you let off the throttle?

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Traded 08 Frontier for 16 Frontier SV CC Long box, quite an upgrade. I do miss the 6 speed and Dynomax ex.

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2011 John Deere X720SE

ktsienna
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Posted: Feb 08 2011 at 12:39am \| IP Logged

It is an auto transmission. It does lessen the noise slightly when I lay off the throttle. I had new tires put on it 9 months ago.

Thanks for your insight.

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2004 Nissan Frontier
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frontierguy
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Posted: Feb 08 2011 at 8:17pm \| IP Logged

If the sound lessens when you let off the throttle, it is
possibly a concern in the final drive unit(rear
differential).

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'10 Altima SL
Traded 08 Frontier for 16 Frontier SV CC Long box, quite an upgrade. I do miss the 6 speed and Dynomax ex.

Nissan Technician 25 + years
2011 John Deere X720SE

ktsienna
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Posted: Feb 08 2011 at 11:39pm \| IP Logged

Thanks for the information. I have a feeling you are correct. I really appreciate the help.

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2004 Nissan Frontier
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