Question about 2004 Pontiac Grand Am

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Loud noise while driving

Just yesterday afternoon this started. I was on the highway and noticed that a loud humming or growling noise was coming from the front end of my grand am. The temperatures dipped very low yeasterday along with a good amount of snow. At first I thought it was snow buildup in my wheel wells but I've cleaned that out and the problem persists.  If I put the car in park or neutral and rev the engine, there is no such noise. It seems to only occur when I'm driving and the faster I go the louder it gets. Is it possible for the transmission to be making this noise because of the extreme temps? (0-5 F)

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It is your Wheel Bearings. I just changed mine out on my Grand Am with the same problem. Now I have no humming noise.

Posted on Feb 27, 2009

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Maybe have your alignment checked? If not then it may be a CV Joint

Posted on Jan 15, 2009

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