1996 Toyota 4Runner Brakes Grabbing Over 40mph

1996 TOYOTA 4RUNNER
234,500 MILES • 6 CYL • 4WD • AUTOMATIC
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JOEF9000
  • MEMBER
  • 1 POST
Just replaced my front rotors and brakes pads. Easy job, no problems. However, now when the truck is over 40mph, the brakes grab and release. Doesn't matter if I hit the brakes soft or hard - I get a strong vibration. Under 40mph, there seems to be little problem. My tires are in excellent condition with 50K + miles. No sign of an alignment problem.

What should I be looking at now?
Thanks for your help.
Jul 28, 2008 at 2:23 PM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,814 POSTS
Hi joef9000,

Check the rotors again, could be improperly seated due to foreign materials or rust. Next possibility is badly out of lateral rotors.
Aug 17, 2008 at 12:46 AM
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JOEF9000
  • MEMBER
  • 1 POST
"Check the rotors again, could be improperly seated due to foreign materials or rust. "

Thanks. I will pull it all apart again tomorrow. One thing I did not check is the trueness of the rotors. Being brand new, of middle range quality, I just pulled them from the box, cleaned everything, and then installed. Maybe I should have had them checked/turned 1st.
Again, thanks for your advice.
Joe
Aug 17, 2008 at 4:06 PM
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