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Brake pedal vibrates in the move?

Brake pedal vibrates (feels when touching with left foot) in the move/drive but when release the accelerator no vibration. Car. Mazda 6 2.0 MY 2009 Auto.

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  • 7 years ago
    Favourite answer

    Warped. Likely, the calipers are very slightly sticking (It's the caliper piston seals). They get old and tired and they get dirty due to old brake fluid in the system. When this happens, they don't "Snap" the caliper piston back aggressively when you release the brake. This creates a slightly dragging brake pad which heats up the rotor and warps it. You can see this evident when you have un-even pad wear between the inboard and outboard brake pad.

    If you fix the warped rotor, the problem is going to come back if you don't rebuild the calipers with new caliper seal kits and then completely flush the old brake fluid from the system and then bleed the system.

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  • 7 years ago

    you have a warped brake rotor, take it to a mechanic to have it replaced (shouldn't cost more than $100) before you end up having to replace your pads or even caliber aswell.

  • Anonymous
    7 years ago

    Warped brake disks/drums.

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