Question about 2002 Chevrolet Tahoe
At low speed, almost stopped, the abs takes over, you feel the shudder in the brake pedal...no "abs' light on, no codes...all tsb's concerning this problem say to clean the sensors and ring.. i have done this to both front wheels and it still does it...pulled it back apart, cleaned the grease from the sensor rings, cleaned everything again, but problem still exist. Hub bearings have been changed about a year ago, but customer says problem did not start right after that, so i didnt see any relation..When abs applies, the vehicle does seem to favor the left brake , or pulls slightly left...all sensors and rings and harnesses look ok, sensors ohm correctly...every thing i have found on this problem says to clean "everything"...but this hasnt helped....any more suggestion would be GREATLY appreciated........Thanks, Tony
Its possible that right wheel speed sensor is dropping out early making the truck think that wheel is locking up. That will activate the ABS and let the brake go on the right wheel which will make the vehicle pull slightly left. The only way to know for sure is to watch the wheel speeds on a scanner and see which one is drpping out first and replacing that speed sensor/bearing assembly.
Posted on Sep 20, 2008
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Posted on Jan 02, 2017
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