I have posted only a few times. I usually find what I need by searching. I know my situation isn't unique but thought I'd share it. My 2002 2wd Blazer began having wheel hub noise. Everything about it told me it was the passenger side. Shift weight to driver's side it would quiet down or even go away. As I replaced it I thought "man these bolts sure are easy to loosen for 17 years old". They weren't loose but they came out very smooth. I do a more thorough check and the bearing is nice and smooth. I replaced anyway. Still made noise. I even convinced myself it was the rear passenger bearing. Before digging that deep I checked the driver's front hub. It was loose, loud and color distorted from the friction. Long of the short is symptoms aren't always a constant. Thanks for all the knowledge shared by the enthusiasts on this sight.

 

Good advice! Thanks for sharing and congrats on the fix.

 

It is hard to diagnose the wheel hubs even when they are making noise. I couldn't tell which front hub was bad by the old 'jack it up and spin the wheels or shake the wheels from the 9 and 3 o'clock and 12 and 6 o'clock positions'. My bad wheel hub's only made noise over 45 mph. It was very evident which one was bad when I jacked all four wheels off the ground and ran the wheels at speed. Do this with extreme caution and on a stable concrete surface. Observe all precautions and if you don't have the necessary equipment , take it to a shop that does.

 

Always change these in pairs. If one is bad....