Braking noise WRX 02 UK

[Clive]

I was enjoying an interesting performance comparison
with an Evo a couple of nights ago and had to brake
very hard from around 110 mph to stop in a fairly
short distance....ie full on!
Although the brakes coped they made an appalling
noise best described as a howling-moaning sound.
Most embarrassing and I've never heard the like before.
No fade immediately afterwards and no apparent problems
with the discs (rotors) or pads...16k on the clock on original
parts.
Before I call my dealer...has anyone else experienced this
and if so what the hell is causing the noise?
TIA

--
Clive Norris
Selectron (UK) Ltd
Musical Equipment Distribution
www.espguitars.co.uk
www.espshop.co.uk
www.emgpickups.co.uk
www.emginc.com
www.whirlwindusa.com
www.deanmarkley.com
www.mightymite.com
www.tube-shop.com

 

[Edward Hayes]

Maybe it was your passenger?? Yes; I've heard that sound on several cars
other than Subaru and suspect it's vibration or resonance of the backing
water shield. Ed Hayes

 

[Clive]

Maybe it was your passenger?? Yes; I've heard that sound on several cars
other than Subaru and suspect it's vibration or resonance of the backing
water shield. Ed Hayes

Thanks Edward...a possibility but
I think I'll get the dealer to check it over
anyway.
My last 2 Soobies didn't howl like banshees
under heavy braking...and they got good workouts.

 

[Ross Lyall]

I was enjoying an interesting performance comparison
with an Evo a couple of nights ago and had to brake
very hard from around 110 mph to stop in a fairly
short distance....ie full on!
Although the brakes coped they made an appalling
noise best described as a howling-moaning sound.
Most embarrassing and I've never heard the like before.
No fade immediately afterwards and no apparent problems
with the discs (rotors) or pads...16k on the clock on original
parts.
Before I call my dealer...has anyone else experienced this
and if so what the hell is causing the noise?
TIA

Could be the pad wear warning noise, it mentiones this in the manual...

R

 

[John O]

I was enjoying an interesting performance comparison
Rereading your post after Ross' reply, the thought occurred to me that maybe
this noise is a function of the anti-lock breaks. I've had a couple vehicles
with ABS, and one made a distinct clicking--almost like a grinding or
slipping gear-- as it worked, while the other (my OB) is decidedly smoother;
smooth enough that it could have an audible pitch.

On the other hand, I'm reminded of why my father-in-law passed on a
Mitsubishi Galant several years ago. The car was perfect (mine lasted
forever...the best car I ever owned), but his head touched the roof in the
back seat. That was enough to DQ the car from his list. So I asked him, how
often will you ride in the back seat of your own car? 'Probably never.' So
what's the problem? 'I don't fit.'

The moral of the story...how often will you need to stop quickly from 110
mph? Is this really a problem?

-John O

 

[Guest]

Ross Lyall wrote:

Could be the pad wear warning noise, it mentiones this in the manual...

R

or the rotors have non-uniformn friction characteristics

My brakes vibrate and make a low pitched hum during high speed stops, as
the pads/rotors heat up.