ABS problem

GM has been having a huge problem with front wheel bearings. They are not defective or noisy but they develop enough play to allow the signal to drop out from the built in speed sensor. That makes the computer think that wheel is locked up. These bearings can cause this problem in as little as 15,000 miles. The junk bins at GM dealerships are full of these them. The good news is that is the same bearing used on cars without ABS, and without the built-in sensor, it costs twice as much. Go figure.

caradiodoc

oh alright. I hear the sound on the left side as soon as i pull out of my driveway but it goes away in like two seconds. I guess i should have my mechanic take a look at it...Thanks a lot

Sorry that I forgot that part. It sounds like what you're hearing is the computer running a self-test on the system. When the wheel speed sensors cause continued problems, the computer will detect that as a wheel not turning when you are NOT pressing the brake pedal. That will turn on the yellow warning light and disable the system.

That self-test should only run once during each drive cycle, not each time to leave a stop sign.

caradiodoc

So if I keep driving it with a busted wheel bearing with it be undrivable soon if the abs keeps thinking the wheel isnt turning and the abs keeps kicking on.....by the way thanks again for the info

Won't hurt anything, but if that's what's happening, the yellow warning light will turn and the system will be turned off leaving you with standard brakes.

caradiodoc