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What does a low-pitched brake rumbling mean?

Sometimes right after I start my car from cold, when I'm braking at a very low speed (e.g., coming out of the lot), there will be a very loud, very low rumbling sound - sort of like when you drive over rumble bars. After I've been driving a while, there will be no such sounds thereafter. What could be the cause of this?

1 Answer

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  • 8 years ago
    Favorite Answer

    it kinda sounds like the rotors may be slightly warped and when they warm up they straighten out

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