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Antilock brake system engages on low speed stops on dry pavement on my 2004 Silverado.
I have the same thing happening to my '97 suburban....how to fix?
I have a 99 suburban doing the same thing,it has new calipers rotors shoes and drums. this only happens under 10mph usually pulling into the driveway or coming up to a stop sighn
I have a 99 suburban doing the same thing,it has new calipers rotors shoes and drums. this only happens under 10mph usually pulling into the driveway or coming up to a stop sighn
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The symptoms you are describing sound like the brake system is going into antilock mode. If you are driving under wet or slick conditions, this is normal operation and it may not "feel" like it to you, but you are actually stopping in the shortest distance possible for the conditions.
On the other hand...If it is doing this on dry pavement and you are not driving like a maniac, this would be what is commonly called "FALSE antilock mode". This happens when the antilock brake computer "thinks" that one of the wheels is locking up when it is very apparent to the vehicle operator that there is no way a wheel should be locking up or skidding. This ia almost always caused by a weak or defective wheel speed sensor.
I have had a couple of cases on Ford trucks where the front wheel bearings had been changed with aftermarket bearing assemblies and this is when problem either started, or got worse. Upon inspection of the vehicle I found that these new bearing assemblies came with a new wheel speed sensor already installed. For some reason, the manufacturer installed the sensor with a spacer under it??? (like a metal gasket) Removing the sensor and discarding the spacer fixed the vehicles.
If they are coming on momentarily when you are driving in slick conditions this is normal operation. If they are staying on all the time, even when you are driving on dry pavement. there is a broblem with your Antilock Brake and Traction Control system. A very common problem is a wheel speed sensor that is malfunctioning. Your vehicle is equipped with 4 wheel speed sensors. You will have to access the data in the Antilock Brake Control Module to find out which one it is.
a bad wheel speed sensor will do that generally in the wheel bearing on newer models but not always if the sensor is external rust can build up pushing the sensor away bottom line the abs sees the difference in speed and assumes the vehicle is skidding or slideing and deploys generally only happens at low speed 7-10mph when stopping hope this helps
From pads may be low causing the rear brakes to over brake and the anti-lock kicks in. Could be a sticking caliper piston and last the proportioning valve may need bleeding as it is offset.....
One of the sensors has gone bad and needs to be replaced, the other thing to that would also do that is the ABS sensor is dirty or needs to be re gaped to the speed ring on the hub.
There was a issue bulletin with your Tahoe on the ABS activating under 8 km/h.
Good luck and hope this helps, if not clean out the sensor with brake parts cleaner and check the wire harness and ABS sensor bracket. Re gap the sensor to the speed ring hub. Here is the bulletin.
Anti lock Brake (ABS) Activation at Low Speeds (Clean Wheel Speed Sensor Mounting Surface) #03-05-25-007C - (05/16/2006)
2001-2006 Chevrolet Suburban, Tahoe
The most likely cause is rust buildup under wheel speed sensors causing them to dislodge(lift up) from front hubs and read incorrectly. If recall has been performed to fix this problem...You may have to replace the appropriate hub in order to stop the ABS activation at low speeds. Let me know if i can help more.
I have a 99 suburban doing the same thing,it has new calipers rotors shoes and drums. this only happens under 10mph usually pulling into the driveway or coming up to a stop sighn
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