Question about 2003 GMC Sierra 2500HD

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2002 gmc 2500hd 4wd abs problems

When the brakes are applied and the truck is almost stopped the brakes start to chatter as if you were skidding

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The problem is most likely a wheel speed sensor at one of the front wheels. retrieving a code in the abs system could pinpoint which wheel it is. i believe the wheel speed sensor is part of the bolt on front wheel bearing assy. if you plan on doing this yourself and are mechanically inclined. you will need an a/c volt meter to check sensors. let me know if i can assist further.

Posted on Dec 04, 2008

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