this vehicle started howling while driving what is it

2006 CHEVROLET EQUINOX
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BOOTH
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my 2006 chevy equinox howls while driving what is the howl
Aug 23, 2012 at 2:31 AM
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CARADIODOC
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Can't hear it very well over a computer. If it sounds like an airplane engine and increases in pitch the faster you go, suspect a noisy wheel bearing.
Aug 23, 2012 at 3:01 AM