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Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Silverado 2500, Brakes, Truck
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#490 of 611 2002 Silverado ABS problem
Feb 11, 2012 (1:07 pm)
My Z71 has been having an on going ABS problem at low speeds. I thought it was a faulty wheel speed sensor. I replaced both sensors. Now the problem is more consistent. It kicks in at 5 mph everytime. The truck has New brakes all around, New Master cylinder, and a totaly flushed system. The one thing I was leaning tord replacing next is the Wheel Hubs. I did notice grease down inside the hole along the sensor trace. Is it normal to have alot of grease in there?
#491 of 611 Re: 2002 Silverado ABS problem [jcmoore2]
Feb 12, 2012 (1:34 pm)
Not sure about the grease, but your problem was/is the same as mine, same truck, 2002. I did what you have done and replaced the hubs. I replaced the hubs because the bearings went bad at 95,000 mile. That did nothing to help for the brake problem. I finally took the ABS fuse out as a suggestion from a mechanic. Not a problem since I did 2 yrs/20k miles ago. The ABS light will come on. It even passes the tuff PA state inspection with that way. I will say, I do not have the brake line failure problem others have. Mine was all in the ABS.
#492 of 611 Re: 2002 Silverado ABS problem [mrfixit911]
Feb 12, 2012 (2:03 pm)
Thanks.. Ive done that for the last week. I am concered about the NY state Insp. I would like to get the problem fixed however if I have to drive with the ABS and Brake light on I will. Its just frustrating.
#493 of 611 Re: 2002 Silverado ABS problem [jcmoore2]
Feb 13, 2012 (7:20 pm)
Jim here, Just wanted to say that the grease your having in the sensor trace is reminescent of a bad wheel bearing. That bad wheel bearing is what is confusing the abs sensor at 5 mph. My wheel bearing was bad enough to confuse the abs sensor, but not bad enough to notice a wobble.
Might be a good idea to check that bearing before you lose a wheel, or brakes. Like i posted many times, i had to hit a BIG yello pole at Lowes, to keep from ramming a car in the parking lot, due to NO BRAKES.
Good luck. Welcome to the JOYS of CHEVY OWNERSHIP!!
Jim said that!!
#494 of 611 Re: 2002 Silverado ABS problem [jcmoore2]
Feb 14, 2012 (5:09 am)
I did not have any problem with PA state inspection with the ABS light on. If you do, just simply put the fuse back in. Like Jim said, check the wheel bearing for wobble. I had to replace mine for bad bearings,. It went bad with no warning. One day fine, the next day loud noise and I could feel it in the steering. It just didn't help the ABS problem.
Has pulling the fuse helped ? I noticed the better braking right away.
#495 of 611 Re: 2002 Silverado ABS problem [mrfixit911]
Feb 18, 2012 (2:46 pm)
Thanks for all the help. I did notice a lot better braking with the fuse pulled. I haven't noticed any abnormal pulling or noise yet from the truck. The truck has been great for me. Its ten years old now and I really haven't had to do anything to it. Hopefully it will hold out for another ten years. Thanks again for the help. I will keep you posted.
#496 of 611 Re: 2002 Silverado ABS problem [jcmoore2]
Mar 22, 2012 (3:46 pm)
I changed the wheel hubs. before I did I noticed a load wheel noise from the front end that started around 40 mph. It almost sounded like I was driving with mud tires. It took me three hours to do both sides. It took about twenty min with an air chisel to get the hubs off. If someone was to try to do this at home, you will need a 55 torx, 15 mil , 18 mil, 33 mil (4x4 models), a torque wrench that will reach 177 FT LBs, and a chisel with a big hammer or air. The hubs do not like to come off with out a fight! Thank you all for the help. My ABS problem is fixed. The new sensers I put in a month ago are toast. The drivers side was cooked. the plasic was melted and the target was covered in grease. Its nice to drive the truck with no lights on the dash. Thanks again for the help
#497 of 611 Re: 2002 Silverado ABS problem [jcmoore2]
Mar 23, 2012 (12:22 pm)
sorry I meant 36 mil not 33.
#498 of 611 2004 Sierra 1500 Brake Issue
May 06, 2012 (10:53 am)
I have an 04 Sierra 1/2 ton and have braking issues as the truck does not want to stop like it should. I have replaced the rotors and pads and have function tested the calipers and everything seems to be working. The pedal has pressure and doesn't lose any pressure when braking so I'm thinking the master cylinder is fine. The wheel hubs all appear to be good and I don't have any lights on the dash or error codes indicating an ABS issue. Going to bleed the lines to see if that does anything. Any other suggestions would be greatly appreciated.
#499 of 611 Re: 2004 Sierra 1500 Brake Issue [sjc66]
May 06, 2012 (11:01 am)
2002 silverado, problems starting at 4 yrs old and 95k.
My problem was slightly different is that the pedal would pulsate as if ABS was activating causing the brakes to slightly loose pressure as if in a accident. After doing all you did, I finally pulled the ABS fuse and cure problem. If you want to see if that is the problem, pull the fuse and see if that helps. ABS light will come on but brakes work fine. Been that way for 4-5 yrs and 50k miles now.