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Discussion Starter · #1 ·
my MY07 XC90 3.2 FWD (50,000 miles) recently produce a grinding noise can be heard from the front driver's area that repeat itself at the regular interval while driving at steady speed.

The grinding noise only appears at the speed between 30mph to 60mph. As vehicle speed goes up, the interval of the grinding noise is shorten and noise disappear at speed above 60 mph and below 30 mph. I have done the following but the noise is still exist:

1. Replace brand new front brake rotors, pads
2. Rotate all 4 tires (F-R)

What is the possible caused? wheel/hub bearing? if it's bearing issue, how do I check and find out which wheel bearing is causing this noise. Other than wheel bearing, any areas I should check to determine the cause of noise. thanks for your input.
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