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Old 08 September 2006, 08:35 PM
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Twix
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Question Grating/Scraping noise from rear wheel

Hello all

Loving every minute of my 2004 standard WRX. Just bought it a month or so ago.

However, I have a slight concern - there is an audible grating or scraping noise from one of the rear wheels. Not loud enough to hear from inside the car unless the window is down and I'm driving against wall or fence that reflects the noise back.

Mechanics claim there's nothing wrong with it but it's still there. If I apply the brakes then the noise goes away - so it sounds as if maybe the pads aren't retracting enough and are just touching the discs - but I would have expected it to fade with wear but it hasn't.

Any clues? I'm told its nothing to worry about but I'd rather be sure.

Cheers in advance.
Old 08 September 2006, 08:54 PM
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dan druff
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not to sure of subaru rear brake set up ,noise could be incorrectly adjusted handbrake ,sticking caliper,excess brake dust/rust .
best way is too jack vehicle up and establish which wheel the noise comes from.remove wheel and inspect.
sometimes a clean and grease and adjustment is all that is needed.
hope this may help.

cheers dan
Old 08 September 2006, 09:09 PM
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Twix
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Thanks Dan

It's due a service shortly so I'll get it looked at specifically.

A friend with an STi reckons its a relatively common thing with scoobies but I'll rest easier when its been properly diagnosed.

Cheers.
Old 08 September 2006, 10:59 PM
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corradoboy
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Pull on the handbrake a little (not enough to stall or spin) at 20-30mph and drive with it on for 2-300 yds. This will clear any build up of brake dust from the integrated rear parking drum brake (in the bell housing). If it persists then maybe have a look at the wheel bearings.
Old 09 September 2006, 10:30 AM
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Twix
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thanks corradoboy - i'm going to try that right now, on the way to the gym.

cheers.
Old 09 September 2006, 08:09 PM
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wilb
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How did you get on?
I've got a 04 WRX which does the same!
Old 09 September 2006, 09:42 PM
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Twix
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wilb

to be honest it has helped - at first I thought the noise had gone completely but it is still there - I'm sure its less noticeable now though - I'll give it another quick go tomorrow.

...I was a bit wary with the handbrake - I may be a bit more assertive tomorrow...

Does the noise from yours have a definite metallic sound to it?
Old 10 September 2006, 09:24 AM
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wilb
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I guess you could say it sounds metallic, I originally thought it was a brake pad rubbing (had them replaced when I bought the car), but I don't think that wouldn't make the 'swooshing' noise I hear. I'd have thought it would have been constantly grating not on, off, on off etc. as the wheel turns.
Old 20 September 2006, 06:16 PM
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rob84
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my03 sti has just started with the same thing tryed the handbrake trick that didnt work will start to dismantle the brakes and have a better look at the weekend
Old 19 October 2006, 07:12 PM
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wilb
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How did you get on?
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