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Author Topic: Rearend whining!  (Read 289 times)

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Rearend whining!
« on: April 23, 2019, 09:16:17 AM »

Okay I have an annoying whining sound that is most obvious from 60MPH - 68MPH. Its very loud if you have the mid-gate and the rear seats down.

Its not a very high pitched wine which I would first associate it with the rear pinion bearings. So I think that leaves the gears, carrier bearings or outer rear-wheel bearings. Any way to diagnose?

BTW its a 07 LTZ with 210,000 miles.Thanks.


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Re: Rearend whining!
« Reply #1 on: April 26, 2019, 22:30:59 PM »

To diagnose wheel bearings, jack up the back end, spin those tires by hand and also try to wobble the tire by hand to check for any side-to-side play.  Many of us have had to replace front wheel bearings... the rear ones tend to last longer but are not indestructible.
2013 Avalanche LT Z71 Black
Past: 2003 Avalanche Z71  Arrival Blue
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