[DML] Re: Odd chatter from brakes *update*

["Payne" <bpayne@xxxxxxxxxx>]

Okay, this doesn't make any sense and the noise has become an increasing
source of frustration. Here's what I can tell you about the noise so far and
what I've checked.

It is a popping/crackling sound that occurs every time I step on the brakes
(unless I do it very lightly). The sound does not change, it's a steady rate
of metallic pops/crackles that is constant no matter what speed I'm
traveling. It sounds like it's coming from the rear of the car.  I've pulled
the brake pads out, inspected the rotors, cleaned everything, and checked
that the rotors spin freely without hanging up on anything.  It typically
only occurs under braking but I heard it briefly while backing up and while
using RPMs to slow down. If I accelerate in first gear but do not shift
(letting the engine slow me down) the sound can occasionally be heard.
Braking is mostly the only way I hear it. Through normal shifting and
acceleration I do not hear it.

I'm thinking it may not be the brakes but why would depressing the brake
pedal make the noise?  The strangest thing about this is that if I shut the
car off while driving and get on the brakes, it will not make the noise.  It
will only make the noise if I get on the brakes while the engine is running.
It does not matter if I'm in any gear or neutral. All four grab evenly and
quietly when the engine is off.

This problem has been bothering the hell out of me, not only is it
embarrassing I'm afraid something else may be wrong. Could it be a problem
with the brake booster? With my limited knowledge in this area I would
appreciate any suggestions anyone could give. Thank you!

Brandon Payne
#2975


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