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1997 Toyota T-100 Brakes vibrating

Tiny
RMARTIN10
  • MEMBER
  • 1997 TOYOTA T-100
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 175,000 MILES
Brakes vibrate and shake the front end. Worse at high speeds, have to brake hard to lessen the effect. Replaced front pads, had front rotors turned. Thought it might be the back drums not braking at all, so replaced them. Seemed to help some at first but soon was as before. Any Ideas?
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Thursday, March 19th, 2009 AT 8:52 AM

7 Replies

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Check rear rotors and front, check the pads in front and back too.

Next when putting the wheels on properly torque them with a torque wrench or torque limiting adapter for a impact wrench. Over torque them and teh rotor will warp.

Check the bearing for damage also and the caliper mounts for looseness.
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Thursday, March 19th, 2009 AT 8:25 PM
Tiny
RMARTIN10
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  • 4 POSTS
Thanks for the reply. I checked all these things. I have drums on the back. Front rotors seem good and back pistons are working correctly. I put it on jacks, put in in 4 wheel and all brakes seem to start slowing at about the same time. Any other ideas?
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Thursday, March 19th, 2009 AT 8:38 PM
Tiny
BLACKOP555
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Try driving then put on the parking brake. Does it shimmy doing that? If so its with the rear brakes, if not the rear is good and u should pay attention to the front!

Let me know wat you find.
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Thursday, March 19th, 2009 AT 9:06 PM
Tiny
RMARTIN10
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  • 4 POSTS
Will try that when I put the wheels back on. I also noticed when i'm runnin it on jacks in 4 wheel, that the left side starts braking first. Is it possible one side is not braking at same rate, so sides are not in equilibrium as brakes are applied and that causes the vibration? Just throwing out ideas
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+1
Thursday, March 19th, 2009 AT 9:39 PM
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Problem occur only in 4 wheel? Or 2 wheel also?

If one side is breaking faster then the vehicle would pull that way. Not vibrate unless its the front brake.
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Thursday, March 19th, 2009 AT 9:45 PM
Tiny
RMARTIN10
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Not sure if it happens in 4 wheel or not, have not tried it. Will try that as well as the parking brake idea. I never use 4 wheel. What about the rear not braking enough, so that the front is handling all the braking, would that cause the vibration?
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Thursday, March 19th, 2009 AT 9:51 PM
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
All that might cause is the rear wheels spin on ice when braking. Or when stopping fast teh vehicle might not stop straight it might pull left or right.

If the rotors and brakes are good there will be no vibration.
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Thursday, March 19th, 2009 AT 10:24 PM

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