Mercury Repair Questions? Ask a Mechanic for Answers ASAP
Welcome, I'm Chris (aka Moose) I prefer to work when others don't, I am here around lunch and after dinner till after midnight.
Find an open parking lot or wide back road where you can get some speed and make long sweeping turns to load up the suspension heavy on the left and right in the turns. If this does not make the noise come and go then its not the wheel bearings. That leads me to wanting to run the vehicle in the air and use a stethoscope to listen to the power transfer unit if AWD or the right front carrier bearing if FWD.
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Hello again Chris here,