Changed Driver side wheel bearing then ABS light came on Help

Hi Blanca is the ABS sensor ok did it get hit or disconnected in any way. Also is the bearing an active bearing? ie has it got a magnetic side that the abs sensor reads as the wheel rotates. If so is the bearing facing the right side out or is the magnet damaged. Sorry more questions than answers but these are the common problems when working with ABS systems. Regards Jim...

Were you able to read the ABS trouble codes? I have pasted the codes below. You might want to check the torque on the wheel bearing bolts and axle nut.

Here's a link to your code.

Did they scan the computer for trouble codes, then erase the codes ?

Common problem with GM trucks is abs kicks in when not wanted. Just pull the ABS fuse out and eliminate it.

tone ring
join a trailblazer forum and post there find with google

Did you fit the ABS bearing the right way round! one side is magnetic, denoted by a gray side or the ABS sensor has moved away .try to puch sensor in slightley leaving a tiny clearance.

You can have a scanner read the abs code, more than likely if you have a growling or humming noise in the Left front then a wheel bearing is bad. the abs in these trucks has the front speed sensors bolted into the wheel bearings, if the bearing gets bad it will sometimes cause the light to come on due to things like broken or "shifting" tone ring, lifted sensor (air gap) due to corrosion, etc... buying an aftermarket bearing comes with a sensor already installed and so normally will fix the problem (if the scanner says that the same sensor is causing the fault of course). check the bearing by jacking up the side of the vehicle you suspect, use a jack stand to support the truck from dropping accidentally, grab the wheel on top and bottom, one hand on each, then rock the wheel to check for play, there should be none, play could indicate a faulty bearing, or some other component. now check for roughness and noise in the bearing by placing one hand on the spring, either coil spring or torsion bar, and spin the wheel by hand, if the bearing is bad you will feel a vibration coming through the spring, you may also hear the "roar" or "hum" of the bearing when it is spinning. This will tell you if the bearing is actually at fault. if you are not comfortable doing this yourself bring it to a qualified mechanic and have them check for you, also a scanner to check the code should be done also to ensure more then one problem does not exist. hope this will help you. cheers

sorry to tell you this but it sounds like the wheel bearing was put in backwards on one or both sides. the front wheel bearings have a black speed ring built in and that is what your speed sensor reads off. - this is common as the front bearings will install either way- hope this helps

You can do it yourself just take your time:
To change front wheel bearing.
1. Jack car up support with jack stands
2. take tire off
3. take caliper and brakes off
4. take rotor off
5. unbolt axle shaft nut at bearing hub
6. use a 3 lb slug with a block of wood
7. place wood on axle shaft and knock it in
8. back side 3 10mm bolts unbolt
9. front side have to pry off bearing hub Assembly only beacuse has dirt in knuckle hole.
10. clean hub knuckle and reinstall.
Its really not that hard or you could have them done for $900 and up. (I have changed alot of wheel bearing assemblies )Whats your e-mail I can send you a diagram if you want.