I just had a front-end brake job: turned the rotors, pads... There is a
fluttering sound on the left brake when I'm driving along.

What causes this and how can I fix it?

voice from the past

<timagine (AT) hotmail (DOT) com> wrote

It is difficult to diagnose sounds without hearing the sounds, but here are
some common causes of brake sounds that occur when the brakes are not
applied:

Improper rotor installation - fix by removing the rotor and installing
correctly
Improper pad installation - fix by removing the pads and installing them
correctly
Aftermarket parts, particularly pads, that do not fit correctly - fix by
installing OEM pads.
Stuck caliper slide - fix by cleaning up the slide, the slide bushing, and
lubing with anti-seize, wheel bearing grease, or caliper slide grease.
Improper wheel installation or torque - fix by removing and reinstalling the
wheel and torquing the lug nuts properly
Bad wheel cover - fix by installing a new wheel cover.
--

Ray O
(correct punctuation to reply)

<timagine (AT) hotmail (DOT) com> wrote

about the problem? and if so, what did they say?

"Ray O" <rokigawaATtristarassociatesDOTcom> wrote

Damaged, improperly greased or misadjusted wheel bearings, most common if
you have the older style tapered roller bearings. Ray didn't overlook this,
it's merely an expansion of his comment "improper rotor installation."

One other problem - very rare in my experience, is an improperly remachined
rotor. Many years ago I had disks turned by an auto parts store that owned
their own brake lathe. The lathe's collet was out of true.
--
Mike Harris
Austin TX

I think it was timagine (AT) hotmail (DOT) com who stated:

Don't know.

YOU shouldn't have to!

Go back to whomever did your brake job and tell them about the sound
(assuming it wasn't there before the job was done). THEY should figure
out the problem they caused and fix it . . . .

-Don
--
"What do *you* care what other people think?" --Arline Feynman

I should have mentioned that the sound stops when I apply the brakes.

voice from the past

Ray O wrote:

<timagine (AT) hotmail (DOT) com> wrote

Same advice applies.

--

Ray O
(correct punctuation to reply)