GM truck Anti-lock activate problem - again

[BoxMN]

I have 98 k1500 with 185k. The anti lock kicks in a slow speeds, it is the same as last time and apparently it is fairly well known issue. I had it fixed, but can't recall what they did, but I know the first time I had a shop try, they just cleaned something and it didn't work, even though they were following the service notes.

I am wondering if at 185k I should just put in new bearings to fix the problems, as I think the anti-lock is part of the bearing, isn't it? These are still original bearings. Wondering if it is worth it to put money into old bearings being repaired, or just put new bearings in? I can get new a good price, and not against giving it a try myself, if it is n ot a huge or special tool project.

I do plan to keep this vehicle until the wheels fall off Thanks for any advice.

[Scott K]

Wheel bearings are common to get loose and go bad, but they are expensive, and if they arent bad, you just spent a lot of money for nothing. If the bearings are loose, I would replace them, or your whells just may fall off

[Jeremy airjer W]

What they did was remove the sensor from the hub/bearing assembly and clean up the mounting surface. This works 99% of the time.

Like four mentioned if a bearing is getting sloppy it can also cause this. The hub/bearing/sensor come as one assembly when replaced.

To see if the bearing is sloppy jack the wheel off the ground. Grab it at the 12 and 6 o'clock position and push/pull. If you feel play you might have just found the issue. I will recommend jacking on the frame rather than the control arm. This will keep the front end under load and you should not feel any front end play this way. If you jack up under the control arm it will unload the front suspension and it is possible that you could feel upper/lower ball joint play if they are sloppy.

I suppose it wouldn't hurt to do it both ways. You may discover you "have a wheel about to fall off!"

[BoxMN]

Thanks guys. I think there is no slop, checked last time I rotated tires, but that was before the anti-lock issue kicked in, so will check again tonight.

Is bearing replacement real hard, or can a regular human do it?

[Jeremy airjer W]

Its a bolt in hub/bearing. A Saturday afternoon, a 1/2" torque wrench, an axle nut socket, and a basic set of hand tools is all you should need.

It is vitally important to the longevity of the new bearing that the axle nut be torqued to the proper spec!!!