Q: brakes?

asked by on August 01, 2016

Just had premium ceramic pad R&R rotors, replaced grease seals and clean/repack wheel bearings where applicable and/or needed five days ago. Yesterday while driving I heard a sort of "woop, woop" sound. The tires are two years old. The mechanic said everything looked really good for my inspection in September. What could be the problem. Thank you.

My car has 21500 miles.
My car has an automatic transmission.

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