Brake Antilock Wheel Speed Sensor problems of the 2000 Chevrolet Silverado

The contact owns a 2000 Chevrolet Silverado. He stated that while driving at low speeds of 10 mph, the abs engaged without warrant. When the failure would occur, it would cause increased stopping distance when braking at low speeds. The contact previously received notification of NHTSA recall campaign id number 05v379000 (service brakes, hydraulic: antilock) and the dealer removed and thoroughly cleaned the wheel speed sensor, mounting surface on the bearing, applied rust inhibitor to the cleaned surface, greased the mounting surface, reinstalled the wheel speed sensor, and checked the peak-to-peak output voltage to ensure the wheel speed signal was within specifications. The failure recurred and the dealer advised they would not be liable for repairs due to previous recall repairs. The failure and current mileages were 99,000.

The contact owns a 2000 Chevrolet Silverado. He stated that the abs activated without warning which increased the stopping distance. There is a recall for the antilock brakes (NHTSA campaign #05v379000). The dealer repaired recall; however, the failure continued to occur. The failure and current mileages were 59,000. The consumer stated this is the 2nd repair, both times the speed sensors were replaced. The consumer provided a copy of repair invoice. Updated 08/29/07.

: the contact stated the brakes where applied at 8-10pmh and the abs engaged, resulting in the contact having a crash. To avoid a rear end collision, the contact left the road and hit an embankment on the passenger side of the vehicle. The police did not take a report at the scene and no injuries were sustained. After the accident the contact received a recall 05v379000, concerning the antilock brakes. The vehicle was taken to the dealer for inspection, the speed sensors were cleaned and it was determined the hydraulic pump needed to be replaced. However, the dealer was not able to determine whether the brake failure and accident were caused by the abs sensor or the hydraulic pump. The contact felt the pump should have been included in the recall campaign. Additionally, the brake rotors were replaced, due to corrosion, after only 4,000 miles.

The vehicle is a 2000 Chevrolet Silverado pick-up truck. The abs is coming on unexpectedly when the consumer applies the brakes. Several times when this occurred it caused the brakes not to work properly and at other times it caused them to fail. This problem has caused the consumer to almost hit another vehicle and a building on separate occasions. She has taken it to the dealership which they told her that the problem was the abs senor needed to be cleaned. They removed and cleaned both front wheel speed sensors. Because of some kind of build up on the sensor. When the consumer had this fixed the dealership broke the brake pads and rotors trying to get to the problem. They replaced these parts at the consumers expense. The problem has not come back since they cleaned the sensor. This is the only know problem with the vehicle at this time.

Brake pedal became very hard, truck became hard to stop under 5 miles per hour. The problem occured more often,once for every three stops. The truck was taken to the dealer for repairs. The antilock brakes were found to be faulty. A speed sensor was replaced in each front wheel. Cost of repairs was $400.

Failure of service brakes which resulted in a crash (low speed). Caused by corrosion of speed sensors. Repaired by dealer (cleaning of speed sensors). Dealer repair manager explained that the problem has occurred in past and another similar incident occurred a few days after this one, involving another Chevrolet truck. Dealer further related that the manufacturer is aware of the problem however has only issued a bulletin on how to repair at owners cost (approx. $400. 00 without replacement parts, only labor).

There were no unusual events leading up to the failure of the anti-lock braking system in my truck. The system would fail to operate properly at approximately 5 mph when coming to a stop. The failure is that the system engages unnecessarily at low speeds, causing the vehicle not to stop when desired. It would happen several times daily, and the only crash I did not avoid was into a chain link fence, which did not cause damage. However, there were several near misses. The corrective action that I took was to remove the fuse for the anti-lock brakes. The corrective action that my dealer suggested was to spend $500 replacing the front wheel speed sensors. He said that this is a common occurrence on the Chevrolet Silverado, and that my problem would only get worse. Gm has issued a TSB on this issue, but not safety recall. I feel that since I have lurched into busy intersections, lurched forward in crosswalks, and come close to crashing into other vehicles while parking, this should be regarded as a safety issue.

Abs brakes engage each time I come to a slow stop( I. E. Pulling up to a stop sign or red light) extending my stopping distance. Dealer states that the abs speed sensors and front hubs must be replaced but cannot tell me what is wrong. The abs warning light does not come on although according to the dealer( kelly Chevrolet, butler, PA) the system is malfunctioning.

2000 chevy Silverado z-71, 4wd, v-8 extended cab 31,000 miles. I purchased the vehicle used on June 24, 2004. In September, 2004 I noticed that the abs brake system would activate as I slowed (< 10 mph) to a stop. This issue began intermittantly but worsened as I continued to drive the vehicle. By Jan, 2005, the abs would activate every time I applied the brakes at slow speeds (< 10 mph). No trouble lights came on. I did not have any accidents with this issue but had one very close call in a parking lot. This incident caused m to investigate and fix the problem. In late January, I had a gm dealer investigate the issue and they recommended replacing the left front hub assembly. Given the high price the dealer was going to charge for the replacement part and the labor, I elected to purchase a replacement front hub assembly from a local auto parts store (autozone). I replaced the left front hub assembly per the vehicle's service manual directions. And the problem went away. The hub I removed was heavily corroded with signs that the seal on the inboard side of the hub was corroded with a portion of the excluder lips missing. I still have the hub assembly that was removed from the vehicle and would be glad to provide it for teardown inspection. In addition, I am a degreed mechanical engineer that works for a leading axle and driveshaft manufacturer and would be glad to discuss this serious safety issue further. I believe that seal failed and this allowed debris / corrosion to enter the hub assembly which then subsequently caused a signal interuption between the tone whee and speed sensor. Thus, the abs system believed that the left front hub was not rotating and caused the abs system to activate. My issue is very much like the issue described in the may 27, 2005 issue of the detroit free pess titled "gm truck owners insist brakes are a problem".

The contact stated there was a recall on the abs brakes. Has contacted the manufacturer, and they will replace the abs speed sensors, but they will not replace the rotors. The contact was having a problem with the rotors. They were corroded. He had the rotors turned and put back on vehicle with new pads. The abs speed sensors were still not working correctly. Updated 12/27/05.

I purchased the vehicle with just over 36000 miles and have used it as a daily-driver. The abs began to activate while maneuvering at low speeds. Problem has occurred more often than I can count. Has lead to the vehicle running up onto curbs/sidewalks. One occasion has caused me to hit another vehicle. Dealership told me, after examining the vehicle, it was defective speed sensors. (they didn't really inspect it. The speed sensors were replaced earlier that week) ended up replacing entire front assemblies. I was told that the parts wore out. (funny, was told the plastic speed sensors wore out the metal surrounding them. And they showed no wear) I have the original speed sensors.

While pulling into a parking spot with the truck I applied the brakes and the brake pedal went to the floor. The brakes did not slow the truck down at all and I was lucky to have a large enough curb and slow enough speed for it to stop. I brought the truck to the dealer and they diagnosed a failed electronic braking control module and front right abs speed sensor. Afterwards the abs was coming on at low speed when it shouldn't have been and the dealer subsequently replaced the front left abs wheel sensor since it's output was out of specification. The fact the brakes completely failed due to bad computer parts is of real high concern to me and others around the vehicle due to the safety. The failure mode of the abs computer components should never prevent vehicle braking. I filed a complaint with chevy to have the failed parts analyzed as to how they could have resulted in a complete loss of braking. They have denied my request.

Back in the fall of 2003 I had an insodent with the abs brakes on my 2000 chevy Silverado going crazy. When I would go to stop everything was ok till the truck hit 5 miles and hour then they would activate and at times would not stop. They would also lock up and the truck would keep moving with my foot on or off the brake pedal. The only way to stop it was to ease off the petall and hit the pedal hard and at times this would knot work on the first try. I took the truck to my local goodyear service station and had them check it out. They did not see a problem with the abs sytem but they said that I need to replace the rotors becuse they were rusted very bad . I did that and a it did not fix the proplem. So I contacted my local gm delaership and asked them if they could look and see if there was any recalls or problems with the abs sytem that I was not informed off they said no there was not. While on vaction visting my parents in another state I went to a gm dealership and had them take a look at it and after hooking it up to the computer they said it could be the speed sensor or the abs module. So I had them replace the speed sensor and they also did some othere repairs on the truck as well but at this time I can not tell you what they done becuse I do not have accsess to the bill. And they told me that I needed to replace the front pads in about 3 to 4 months. Everything was going fine then it started doing it again and it had been 3 to 4 months since I had the speed sensor changed so I took the truck to pep boys . At pep boys I had them check the front to replace the brake pads and they did so. This did not fix the problem. Now I would take it back to the dealership to have them look at it again and replace the abs moduel but as of right now I have invested over $900 in this problem. I herd the abs module cost over $650 not to mention the diagnostic fee of$89 and labor. And I herd that there was a recall and I can not find out any information on it.

Dt the brake system would activate at 3. 7 mph and it would not stop. The consumer hit a wall. The vehicle would make a growling noise indicating that the abs was not working. This started on Jan 1, 2001. The consumer took the vehicle to the dealer twice and they found nothing wrong with it. The dealer replaced the wheel speed sensor.

I am having trouble with my 2000 Silverado abs speed sensor and gm will not replace the sensor or fix the problem. This is a problem that is occurring on many trucks and seems to be something gm should consider having a recall on.

Tl-the contact owns a 2000 Chevrolet Silverado. The contact stated that while driving approximately 10 mph, he applied the brakes and there was an abnormal increase in stopping distance. The vehicle was taken to the dealer for diagnostic testing. The technician stated that the wheel speed sensor needed to be replaced. The vehicle was repaired under NHTSA campaign id number: 05v379000 (service brakes, hydraulic:antilock) however the failure was not corrected. The vehicle was not further repaired. The approximate failure mileage was 86,000 and the current mileage was 127,000. Mah.