1999 GMC Sierra Brakes Vibrate

1999 GMC SIERRA
80,000 MILES • V8 • 2WD • AUTOMATIC
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DCRUZE
  • MEMBER
  • 3 POSTS
I have a problem with my brake that when you push the peddle halfway to the floor they vibrate like the anit-lock is trying to kick in. I changed out the master cylinder and while bleeding the lines found out that my rear calipers were sticking so I replaced both rear calipers, I still have the problem.

Can it be from air in the lines or is there something else going on?
Nov 4, 2009 at 7:01 PM
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MHPAUTOS
  • ✓ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
Hi there,

Have the rotors checked for excessive run out, warped rotors are very common, start here'

Mark (mhpautos)
Nov 4, 2009 at 7:21 PM
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