99 alero hum, abs trac lights

Humming started a couple weeks ago. The traction and abs lights randomly come on, have been for about 3 months now. Sometimes the low trac light comes on sitting still and I can feel the abs kicking on.

Replaced the passenger wheel bearing last year along with all four rotors and pads. Replaced the drivers bearing 2 days ago but still humming. Oriellys scan indicated something was wrong with the front passenger side abs, could that bearing go bad so soon? One of the codes also indicated the brake lights coming on during deceleration even without hitting the brakes, tested that and it's not true.

Doing a rotation this week, see if it helps the hum at all. It's loud, when decelerating, it sounds like a plane until you get to about 20mph.

Normal bearing noise is this: noise gets louder with speed, usually loudest in the 30-40 mph range......drive vehicle straight,,,,cruise when noise is loudest.....now slightly turn the wheel left, return to center, and slightly right, and back to center(do this safely with no cars around).....if the noise gets louder in one direction, and lessens in the opposite direction, then yes, it could be a bearing.....

First double check the condition of the tires for abnormal wear/cupping......you can also rotate the tires front to rear, and see if the noise is still there in the front, while turning the wheel sightly either way.....

There are bearings and there are bearings......there are cheap ones that last 6-12 months......there is a reason why there is a huge disparity in the price of bearings....

You could also have two problems....the noise could be the bearing.......the ABS light/intermittent problem could be a bearing, or the wire harness to it......the harness will not cause the noise....