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Old 07-18-2009, 11:46 PM   #1
JustAnotherSubie
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Default Weird noise when i brake....

Wussup, i have an 07 wrx. I got my brake pads / rotors changed April of this year. While i was driving today, and i downshifted, my car started making this noise in the rear driver side wheel, like something was scraping something. I got out of my car and tried to see if anything was causing it, and nothing was there. As i kept driving, the scraping sound will only happen whenever i downshift and brake. The only place making the scraping sound is the rear driver side wheel. My brakes arent warn out at all, and my brake pedal is smooth whenever i brake. So if anybody knows what this is or has an idea, let me know thanks.


-Alex
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Old 07-18-2009, 11:51 PM   #2
SeriousInquiry
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Make sure your lug nuts are completely tightened, it could be the heatshield rubbing against the rotor. Thats what my problem was yesterday . good luck!
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Old 07-18-2009, 11:53 PM   #3
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All the lug nuts are tightened! I checked every possible thing...
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Old 07-19-2009, 12:23 AM   #4
fivestringslinger
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If you've got a jack at home, pull that wheel off and check the following:

Make sure the backing plate isn't touching the rotor...or if it looks like it might be too close.
Check to see that the caliper bolts are properly torqued.
Check to see if one of the pad shims hasn't come off the pad and twisted around in there.
Make sure the wear sensor (little metal tab) isn't bent and touching the rotor.
Put the wheel back on and make sure it's torqued properly.

Went through this on my 95 Talon several years back. PITA.

Also...What kind of pads were installed? Semi-metallic? Ceramic? Good stuff? Cheapie Valu-Crap AutoZone pads?

Last edited by fivestringslinger; 07-19-2009 at 12:25 AM. Reason: I forget stuff...
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Old 07-19-2009, 12:33 AM   #5
JustAnotherSubie
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^ OEM pads since they were still under warranty.
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Old 07-19-2009, 12:37 AM   #6
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Quote:
Originally Posted by JustAnotherSubie View Post
^ OEM pads since they were still under warranty.
Oh. If that's the case, I'd take it right back to the place that installed them. Just tell 'em it's making noise and have them fix it. That was only a couple months ago. Should still be covered.
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Old 07-19-2009, 12:51 AM   #7
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Yeah im going to do that on monday. So its nothing serious?
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Old 07-19-2009, 12:58 AM   #8
fivestringslinger
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If you checked and everything is tight and nothing has fallen off, I'd say you're fine. I'm all for DIY, but if someone was in there swinging wrenches and you paid them good money to do so (whether it was under warranty or not) let them fix it.
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Old 07-19-2009, 01:02 AM   #9
JustAnotherSubie
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Can it be the rear struts? Since i have aftermarket suspension.
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Old 07-19-2009, 01:38 AM   #10
mems3
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Quote:
Originally Posted by fivestringslinger View Post
If you've got a jack at home, pull that wheel off and check the following:

Make sure the backing plate isn't touching the rotor...or if it looks like it might be too close.
Check to see that the caliper bolts are properly torqued.
Check to see if one of the pad shims hasn't come off the pad and twisted around in there.
Make sure the wear sensor (little metal tab) isn't bent and touching the rotor.
Put the wheel back on and make sure it's torqued properly.

Went through this on my 95 Talon several years back. PITA.

Also...What kind of pads were installed? Semi-metallic? Ceramic? Good stuff? Cheapie Valu-Crap AutoZone pads?

+1 for this..... happened to me and made me crazy!!!!
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Old 07-19-2009, 01:47 AM   #11
fivestringslinger
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Quote:
Originally Posted by JustAnotherSubie View Post
Can it be the rear struts? Since i have aftermarket suspension.
I couldn't really see that happening under braking only, though...If it was making noise over bumps/in corners then yeah, maybe.
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Old 07-19-2009, 01:58 AM   #12
JustAnotherSubie
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Tomorrow I'm going to check everything again, thanks for the help everyone!
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