My dealer said the front wheel bearings need replacing. And he described the popping noise I would hear if the bearings were bad but I don't hear this noise. If the tires were taken off, would bad bearings be something I could immediately see?
Front Wheel Bearing Replacement on 2002 GMC Sonoma
No, not really. The bearings are located inside the hub assembly which is covered by the brake rotor. Unless your truck has very high mileage if would find it hard to beleive that your front wheel bearings need to be replaced. Packed with new grease yes, but not replaced. The noise most noted when a wheel bearing has failed is a roaring or grinding type noise. My suggestion would be to get another opinion.
agreed wheel bearings roar the popping noise sounds more like tie rod ends at full lock
2 more answers
NO YOU CANT SEE THE BEARING ON NEWER VEHICLES THEY ARE SEALED. THE ONLY WAY YOU WOULD NEED BEARINGS IS IF THERES A GROWLING SOUND COMING FROM THE WHEELS WHEN DRIVING. OR WHEN THE VEHICLE IS LIFTED IF THE BEARING ARE BAD YOU CAN WIGGLE THE TIRE BACK AND FORTH OR WHEN YOU SPIN THE WHEEL YOU FEEL RESISTANCE FROM WORN OUT BEARINGS. IT SOUNDS LIKE YOUR FINE IF U WANT A FREE SECOND OPINION CALL ME BRETT
Bad bearings are bad bearings. If you don't hear a noise then there likely nothing wrong. To check, --Jack up the wheel in question. Place hand on up side of the tire. See if it wiggles when you push in or pull out. If it wiggles replace bearing. BUT, If you don't hear a rumbling noise then the bearing may be wore, and a slight play can be expected. A slight play is normal; for a bearing with use on it. If it don't rumble on the road (tarway) then it's OK. Ed