Brake Antilock Wheel Speed Sensor problems of the 2001 Chevrolet Silverado

The contact owns a 2001 Chevrolet Silverado. The contact stated that while driving at approximately 20 mph with the brakes engaged, the vehicle decelerated to 10mph and the abs began to pulse. The brakes continue to be depressed until the vehicle came to a complete stop. The vehicle was taken to a dealer who diagnose that the wheel speed sensor was corroded and needed to be replaced. The manufacturer made aware of the failure who did not offer any assistance since recall NHTSA campaign id number: 05v379000 (service brakes, hydraulic: antilock) was closed. The vehicle was not repaired. The approximate failure mileage was 126,000 and the current mileage was 127,000.

Total brake failure. The cause of the failure was the failure of both lines from the master cylinder to the abs ehcu where they are unprotected from wheel spray adjacent to the wheel speed sensor anchor point just inboard and slightly aft of the left front wheel directly below the master cylinder. Upon inspection it was clear that the line closest to the left front wheel failed first and that the other line failed a split second later due to the burst pressure torque moment created by the first line failure. Up until may 14th the truck remained stationary in the driveway but is now undergoing total brake line replacement. During this task it has become evident that the lines have corroded to the point of failure in many places but the problem seems concentrated on the left side of the vehicle from the front bumper to the rear axle. The only line not in this area is the right front brake line which is in reasonable condition except where it passes along the left side to the abs ehcu. In many places the lines can be broken by hand using the action of breaking a stick by hand. In some cases this caused the line to break in multiple pieces. Any thoughts that this is anything but a material quality issue are senseless. This truck has been plagued with material quality issues, specifically rusting of metal. Parts that have been replaced are tail gate cables (recalled) window regulator cables, wheel speed sensor cleaning procedure due to rust ( even though this truck is not covered by the recall) front and rear brake rotors fell apart with sheets of metal delaminating from their surface and wheels have severe rust requiring their replacement. The fuel lines on the truck, bearing a few small spots, remain in like new condition as they run along the frame rail adjacent to the brake lines that are failing apart from corrosion.

Antilock brakes kicking in at low speed, causing a near crash. There is a recall for speed sensors for 99-02 chevy Silverados, but when I call gm I am told that there are no outstanding recalls on my truck even though it is a 2001 Silverado.

The contact owns a 2001 Chevrolet Silverado. While driving approximately 5 to 10 mph on normal road conditions and applying the brakes, the anti-lock brake system intermittently activated. An authorized dealer stated that the failure was caused by the abs speed sensor. Nhtsa campaign id number 05v379000, service brakes, hydraulic, anti lock was related to the failure; however, the recall remedy was insufficient and does not address the defect. The vehicle was repaired. The failure and current mileages were 101,531.

2001 chevy Silverado. No brakes at low speeds. There was a recall and truck was serviced by previous owner, obviously the parts keep corroding and chevy says they only fix once. My mechanic removed speed sensor and cleaned, but I am having him replace w/ new. To be safe. Truck cannot be driven at low speeds safely. Recall # gm 05068.

My Silverado's brakes are vibrating and failing to stop ,again ! both front wheel sensors were replaced,per g. M. 's recall. Also I have replaced all four brake rotors at my own expense. This failure to stop has nearly caused two accidents. On one occasion the vehicle only stopped after running into a chain stretched across a driveway,this resulted in some minor damage to the front grill. I temporarily disabled the anti-lock brake system by removing the fuse, but this disables the cruise control as well. It is very much a matter of safety that the truck stops when it is supposed to.

We purchased our 2001 chevy Silverado 3500 diesel dually truck in February of 2006. In may of 2006 we started having trouble with our brakes. When we were coming to a complete stop our brakes would give a little (like the abs were kicking in). We took our truck to a chevy dealer and they informed us it was our right front wheel speed sensor and the hub assembly. The cost would be $535 to replace the right front hub assembly and the brake stop switch. In investigating online we realized this was a very common problem and that there had been a recall on the speed sensor. In talking with the investigator with the NHTSA they informed me that the recall is only for the speed sensor and not for the hub assembly which contains the speed sensor. We currently have it in the shop and will be getting the old parts when we pick up the truck. Thank goodness that we were able to get it into the shop before we were injured in an accident like so many others or we injured someone else. I am very upset that gm is not taking more responsibility. I don't know much about trucks but I would assume something that contains an item that has been recalled would cause the whole thing to be damaged if left long enough. We did not know of the recall until after the truck was in the shop. I hope that gm realizes their mistakes and that I will recieve some compensation from them. We use our truck to do disaster response full time through a church organization and rely on the truck all of the time. We can not afford to be worrying if our brakes would hold up. I have always been a fan of chevys but now I am unsure of our safety.

Copy of email sent to gm: I recently contacted a local dealer concerned about my abs system engaging at low speeds. He notified me that there was in fact a recall on the truck in canada and certain states in the us for corrosion problems around the abs speed sensor. He also informed me that he could not perform the recall since the truck was built and initially sold in canada. He then gave me gm "800" number to call, which I did (ref#1-409390276). She also informed me that my only option was to have the dealer perform the necessary recall and then submit the receipts to gm for "possible" reimbursement. I have since removed the abs fuse from my truck and am currently driving the truck with this feature disabled to prevent from hitting someone or something. I plan to replace the front brakes and rotor soon and I'll see if I can clear the debris problem myself. I sat and tallied the cars I've owned the last 30 years and came up with 6 different cars/trucks. As far as a historical reference this truck has been pretty good as far as typical american vehicles go. I've only had to replace the abs modulator ($1000), the rear brakes and rotors ($200 my repair), and the driver side door window drive mechanism ($200). All this with less than 60000 miles on the vehicle. There's been a severe draft on the passenger side since I bought the truck (bought one year old with 20k miles). Hmmmmm. I wonder why my other two vehicles are Toyota camry's and my next truck will probably be a Toyota as well. Thanks for the memories. Jeff.

2/10/06- letter from gm denying recall on 2001 chevy Silverado truck, reference recall notice 05v379000. 4/9/03 - took vehicle to authorized gm dealer with concern that abs brakes malfunctioning. They replaced 4 wheel drive hub because no code showed on brakes. 9/17/03 took vehicle back to authorized gm dealer for same problem, they verified and replaced low speed sensor. 1/30/06, sent letter to gm customer service with information on repairs and notified them that they hadn't sent us a recall notice. These brakes have been repaired at the dealer and at a private repair shop and they still pulsate and fail at low speeds.

The contact states there is an NHTSA recall campaign 05v379000 concerning antilock brakes. This vehicle is experiencing the same problems as indicated in the recall, but this vehicle is not included in the recall due to VIN. The contact repaired the vehicle at his own expense. Updated 12/7/2005. The dealer replaced both front wheel speed sensors.

1) brakes activating anti-skid when braking at low speeds with extremely unpredictable stopping !!!!!!! 2) brakes failed to stop vehicle four times: in garage, in parking lot, in work place parking lot and at intersection. 3) taken to harold Chevrolet 10/14/05 to have checked out and repaired. Found out there was a campaign for this problem. Harold inspected and cleaned the front wheel speed sensors and mounting surfaces. On 10/17/05 brakes failed again even after having taken the vehicle in for repair. Vehicle did not stop at intersection!!!! took vehicle back to harold. As a good will jester they replaced one right hub and speed sensor assembly for our safe driving. Received a recall letter upon returning home 10/17/05.

The contact stated when the brakes were applied at low speeds the abs activated. The service dealer determined the wheel speed sensors needed to be cleaned. The repair was done at the contact's expense. This remedied the problem. Recall 05v379000 for this year, make, and model was issued, but this vehicle was not included in the recall. Due to VIN.

2001 Chevrolet Silverado experiencing problems with the anti-lock brake system. The consumer stated the abs began to engage on dry pavement while slowing between speeds of 5 mph and stopping. At first it was occasional, but then the brakes began to engage consistently on dry pavement. The consumer took the vehicle to a mechanic where corrosion was discovered on the driver side front wheel speed sensor. The mechanic recommended removing, lubricating and replacing both front wheel speed sensors. The mechanic stated it was a common problem with the pickup's due to the design of the part and the conditions which the vehicle are driven; snow and highway salt.

Dt contact states in March, 2005, when brakes were applied it seemed as if the anti lock brake system was in. When the brakes were pushed, the vehicle did not stop right away, but did eventually stop. The contact took the vehicle to a service dealer, they stated that the vehicle computer was showing there was nothing wrong. The service mechanic suggested taking the vehicle to the dealership where the vehicle was purchased. They informed the contact that rotors needed to be replaced due to rust, replaced left front wheel speed sensor, cleaned front and rear speed sensor ground. This did help the problem. The dealership stated that the rotors needed to be replaced.

: the contact stated the abs activates below 10 mph. There is a NHTSA recall, # 05v379000, regarding the anti-lock brakes. The vehicle has the same problems as indicated in the recall; however, it is not included in the recall due to the VIN. Upon inspection of the vehicle,it was discovered both abs speed sensors were faulty. Updated 03/03/06.

Contact states: abs on 2001 Chevrolet, Silverado pickup truck. Abs kicked in at low speed. Progressed to where consumer had no brakes at low speed. He had them repaired. The left front hub and speed sensor was replaced.

While driving at a low speed the brake pedal went completely to the floor. Contacted the dealer. However the problem recurred. Dealer stated the sensor hub assembly has to be replaced. The dealer replaced both front wheel speed sensors and cleaned the hubs.

Dt : about 6 months ago going slowyly brakes were applied hard but they wouldnt work, and vehicle went through the garage. Dealer reported that the wheel speed sensors were corroded. The problem was repaired with a new wheel on the left side front. The right front was cleaned. The problem was returning. When approaching a stop sign the abs was heard, and resulted in extended stopping distance. This occurred in all conditions. The abs warning light did not come on.

Abs system intermittently engages at low speed (@5mph). While pulling into a parking space, the abs engaged and I almost hit the car in the next slot. Also, while parking in front a a restaraunt, the abs engaged and I almost drove into the lobby. I've had the speed sensors replaced at about 60k milesand today (73k miles)the hubs are being replaced.

Contact has no brakes between 0-10 mph. Brakes do work at other speeds. The vehicle wa seen by a local dealer who wanted to charge for repairs. The caller saw a recall for canadian vehicles in regard to what may be this same problem. The problem was front wheel speed sensor corrosion. There has been no accident although there were three near misses. The first incident was a year ago.

While applying the brake pedal the brakes failed. This caused consumer's vehicle to collide with another vehicle. Consumer took vehicle to dealer for inspection, and mechanic determined that speed control sensor needed to be replaced and he replaced it, however the problem recurred. The dealer has replaced the rotors due to rust, the pads, brake bleeder screws due to rust, the right front wheel speed sensor and the left front wheel speed sensor.

While driving at any speed and applying the brakes pedal went all the way to the floor, resulting in extended stopping distance. This vehicle was unsafe to drive. However, dealer replaced the speed sensor, but problem recurred.

Antilock brakes engaged without warning and required excessive pedal pressure and/or release re-engage to stop vehicle at slow speed. Critical to stop at slow speed since steep driveway enters busy local college traffic and is blind until very end of driveway. There were several instances when unable to stop until front of vehicle was extended into the path of oncoming vehicles. Right hub and wheel speed sensor was replaced under warranty. Left side hub and wheel speed sensor was replaced the following year at my expense when it failed in the same manner. The dealer did not show me the parts or offer any sort od extended coverage. Both should have been replaced together. I am unaware if during the replacement procedure any procedures were taken to prevent this from recurring in the future.