Jump to content


Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse
 

Photo
- - - - -

'00obw brake squeal in right turns


  • Please log in to reply
9 replies to this topic

#1 porcupine73

porcupine73

    Obligate carnivore

  • Members
  • 4,987 posts
  • Buffalo, NY

Posted 10 May 2013 - 05:51 PM

2000 Outback wagon 180k miles, 2.5L n/a, AT. Lately it has been making a metal on metal squealing sound in right turns. But not in left turns. I am pretty sure it is coming from the rear brakes. What to check?

 

If I press the brake medium hard in the turns, there is no squealing. It isn't the parking brake because the squealing is still there if I pull the handle in a right turn.

 

I'm 90% sure it's from the rear brakes, I don't think it's from the front but it is possible.

 

No sound in left turns.

 

Lug nuts and everything seems tight; no obvious looseness anywhere.



#2 mikaleda

mikaleda

    1000+ member!

  • Members
  • 1,388 posts
  • priest lake, Idaho

Posted 10 May 2013 - 05:58 PM

Any metal on metal sounds coming from the brakes means you should jack the car up and do an inspection. First how worn are your pads? Second is there any debries stuck in the brakes, and third if you have brake drums (I'm unsure about wether that was even an option on this car) springs or metal parts didn't come apart.

Edited by mikaleda, 10 May 2013 - 05:58 PM.


#3 johnceggleston

johnceggleston

    Lite Master of the Subaru

  • Gold Subscribers
  • 6,382 posts
  • Virginia

Posted 10 May 2013 - 08:27 PM

inspect the brake pads. i think you will find that one side has brake pads that are not worn evenly.

that side brake caliper has / needs the slide pins cleaned and re-greased.

the caliper is hanging up on the slide pins.

 

i have re-greased slide pins without cleaning them or the inside of the caliper slides and it just happens again.

 

clean and then grease the slide pins.



#4 Numbchux

Numbchux

    EJ conversion addict

  • Members
  • 5,996 posts
  • Duluth, MN

Posted 10 May 2013 - 08:35 PM

Typically, a noise that only happens when turning one direction is a wheel bearing. IIRC it's the outer side that makes the noise (in this case, right turns = left side). So I would start by jacking the car up, and see if there's any play in the bearing (the wheel would wiggle in any direction, not just one).



#5 porcupine73

porcupine73

    Obligate carnivore

  • Members
  • 4,987 posts
  • Buffalo, NY

Posted 10 May 2013 - 08:35 PM

Thanks, I am going to have to check it out. I think now that you mention it, in the fall, that was what I found, one of the pads was seized in the bracket. I think I filed it down a bit and got everything freed up, but maybe it is acting up again. It wasn't squealing at that time, just something I noticed during the check up.



#6 MilesFox

MilesFox

    Catch this Fox!

  • Members
  • 10,562 posts
  • Madison/Milwaukee, WI

Posted 10 May 2013 - 09:35 PM

wheel bearings. or possible stuck caliper slides. my car is doing this and i just rebuilt the whole thing. loose axle nut could cause it.



#7 porcupine73

porcupine73

    Obligate carnivore

  • Members
  • 4,987 posts
  • Buffalo, NY

Posted 11 May 2013 - 01:54 PM

Thanks, I took a look. The sound was from the left rear. When jacked up if i even rotated the wheel slightly it squealed like crazy. The pads were still pretty good but I replaced them. The bottom guide/lock pin was siezed. The pads were pretty well seized in the brackets too. I replaced them. Not sure what was actually squealing since the pads were still at maybe 50% and the little wear indicator things weren't there so it wasn't those.



#8 Suzam

Suzam

    1000+ Super USER!

  • Members
  • 1,199 posts
  • Wilmington, Delaware

Posted 11 May 2013 - 03:26 PM

Thanks, I took a look. The sound was from the left rear. When jacked up if i even rotated the wheel slightly it squealed like crazy. The pads were still pretty good but I replaced them. The bottom guide/lock pin was siezed. The pads were pretty well seized in the brackets too. I replaced them. Not sure what was actually squealing since the pads were still at maybe 50% and the little wear indicator things weren't there so it wasn't those.

Pull it all off and inspect the backing plate. I have an 01 Outback that did the same thing on the passenger side. Turned out to be rust build up behind the backing plate that pushed it out far enough to make contact. A grinding wheel made short work of it.



#9 johnceggleston

johnceggleston

    Lite Master of the Subaru

  • Gold Subscribers
  • 6,382 posts
  • Virginia

Posted 11 May 2013 - 07:01 PM

The bottom guide/lock pin was seized.

 

this means that the caliper does not ''back off'' when you take your foot off of the brake. and so the pad drags on the rotor.

 

re-greasing the slide pin is the solution. but in my experience, you also have to CLEAN the inside of the caliper slide pin hole or the problem will re-occur in the near future.

 

my 97 obw did this. i re-did the pads twice before i figured it out.

i'm not sure i re-greased the first time.

apparently i have a fairly slow learning curve.


Edited by johnceggleston, 11 May 2013 - 07:02 PM.


#10 porcupine73

porcupine73

    Obligate carnivore

  • Members
  • 4,987 posts
  • Buffalo, NY

Posted 15 May 2013 - 09:09 AM

Thanks, the rear pads and slider service fixed the squeal in the turns. Plus as a bonus the braking is much improved. I don't think the rears were braking much at all and were just along for the ride.

 

The pin that siezed up it looks like water got in around the rubber boot. I cleaned the rust up on the outside of the pin. Something is wrong with the caliper bracket too. The rubber piece that goes on that pin was stuck inside the bracket and I couldn't get it out. So I nipped the end of the pin (where the rubber bushing goes) off with bolt cutters. I wasn't sure if that would work but it seems to be OK so far.

 

I find I have to grind down the pad 'ears' on all my Subaru's, else the pads are too tight in the bracket. I remember there was a TSB out about that many years back. If you grid too much it will sometimes then make a 'click' when first applying the brakes but it isn't too bad. 






0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users