Going about 20-25 mph through the mall parking lot I could hear a whirring noise with each rotation of the tires, definitely coming from the rear. Buddy riding shotgun could hear it as well and though it was coming from the passenger side but to me it sounded like it was coming from the drivers side. If I was driving straight or turned to the right we didn't really hear the noise at all, if I turned to the left we could hear it really well. I'll be the first to admit that I am not a grease monkey, I fix computers, but I did a lot of reading tonight and just went out to see if I could feel any play in the rear wheels from top/bottom & side/side, nothing... At this point I'm guessing I need to get her into a shop to confirm if it is indeed a bad wheel bearing. I've done some looking around online to find prices for a replacement either AC Delco or timken but only find front hub assemblies nothing for the rear, what gives? One thing I know for sure is that I leave for a fishing trip in just under a month and I dont want to have this going out on me during the trip. Anything else I can do???

 

look on the back of the brake dust shield/backing plate and see if its wet or collecting dirt, normally the axle seals leak if the bearing has gone bad

 

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What year and model is the vehicle?

Louis
GM Customer Service