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Old 12-02-2014, 11:08 PM   #1
ItnStln
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Question "Pulling" after Changing Brakes

Yesterday I changed the brakes on my 2011 Subaru Impreza. It seemed that everything went well. That was until I drove it today. I noticed that my car will "pull" to the left when braking Does anyone have any ideas on how to fix this issue?
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Old 12-03-2014, 09:21 AM   #2
mhoerath
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new pads need to be "bedded" or broken in. Also to conform to the rotors. Drive in city traffic maybe 100 miles.
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Old 12-03-2014, 01:03 PM   #3
ItnStln
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Quote:
Originally Posted by mhoerath View Post
new pads need to be "bedded" or broken in. Also to conform to the rotors. Drive in city traffic maybe 100 miles.
Thanks for the reply! Is this common?
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Old 12-03-2014, 04:13 PM   #4
mhoerath
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Quote:
Originally Posted by ItnStln View Post
Thanks for the reply! Is this common?
Common to bed the brakes.

Pull depends on how flat rotor surfaces are on passenger vs. driver side. Say passenger side rotors surface is curved or has "streaks", this will be a less efficient braking surface for your flat pads to push against. Vs. the other drivers side that has a flatter surface and more efficient surface. Car will pull to the more efficient side.

When the pads wear into the shape of the rotor you will have equally efficient braking surfaces with no pull.

Last edited by mhoerath; 12-03-2014 at 04:19 PM.
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Old 12-04-2014, 12:13 AM   #5
Sir-Knight
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did you remember to clean the storage oil off the new rotors by spraying them with brake cleaner and wiping them down?
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Old 12-04-2014, 12:17 AM   #6
ItnStln
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Quote:
Originally Posted by mhoerath View Post
Common to bed the brakes.

Pull depends on how flat rotor surfaces are on passenger vs. driver side. Say passenger side rotors surface is curved or has "streaks", this will be a less efficient braking surface for your flat pads to push against. Vs. the other drivers side that has a flatter surface and more efficient surface. Car will pull to the more efficient side.

When the pads wear into the shape of the rotor you will have equally efficient braking surfaces with no pull.
Thanks for explaining this. I've changed the brakes in several cars and this is the most I've ever noticed any pulling. Quick question, would this explain the burning smell when I'm driving on the highway?





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Originally Posted by Sir-Knight View Post
did you remember to clean the storage oil off the new rotors by spraying them with brake cleaner and wiping them down?
I didn't change the rotors. Is this something that I should do regardless?
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Old 12-04-2014, 01:55 AM   #7
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Stupid questions - tire pressure even all around? How's the alignment? Car go straight while cruising?

+1 on bedding brakes also, goodluck

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Old 12-04-2014, 06:51 AM   #8
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this may sound dumb...but did you put the friction surface toward the rotor for all the pads???

....that mistake HAS been made.....
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Old 12-04-2014, 01:22 PM   #9
Sir-Knight
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Quote:
Originally Posted by ItnStln View Post
I didn't change the rotors. Is this something that I should do regardless?
depends if the rotors were grooved or pitted or not.

If they are not perfectly flat and 1 has grooves or pits, that one isn't braking as efficiently as one that's flat. It could explain pulling.

Did you service the pins and grease them? Seized pins on 1 side might cause issues as well.
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Old 12-04-2014, 08:08 PM   #10
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...or if there is a 'lip' on the rotor and the pad is grabbing that 'lip' and making it 'pull'
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Old 12-05-2014, 05:55 AM   #11
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Clean out and repack brake caliper slid pins boots. Make sure none are frozen and slide nicely.
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Old 12-07-2014, 08:04 PM   #12
ItnStln
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Quote:
Originally Posted by kelvinzxcv View Post
Stupid questions - tire pressure even all around? How's the alignment? Car go straight while cruising?

+1 on bedding brakes also, goodluck

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The tire pressure was okay, as was the alignment. Yes, the car was going straight when cruising on the highway. And thanks for the good luck!

Quote:
Originally Posted by Uncle Scotty View Post
this may sound dumb...but did you put the friction surface toward the rotor for all the pads???

....that mistake HAS been made.....
That isn't surprising actually! But yes, the friction surface was towards the rotors.
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Old 12-07-2014, 08:10 PM   #13
ItnStln
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Thanks everyone for the help! Two days ago I pulled all four tires off and made sure that everything was tightened correctly. I started at the front driver's side tire and worked my way around counter-clockwise. The problem was on the front passenger's side tire. The line leading to the brake calipers had a bend in it. After fixing that, I drove down the street and instantly noticed a difference when I was braking! While there was a slight pull, it was nothing near what it was and now, two days later, there is no pull. I am assuming that the brakes are now bedded. Thanks again for the input and help!
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Old 12-07-2014, 08:22 PM   #14
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that line should, really, be replaced as it is likely a weak point in the system and a future failure point
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Old 12-08-2014, 01:09 PM   #15
ItnStln
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Quote:
Originally Posted by Uncle Scotty View Post
that line should, really, be replaced as it is likely a weak point in the system and a future failure point
This makes sense, thank you for the advise! I am not trying to be cheap, but since I have not had the brake lines checked under the recall (http://www.autonews.com/article/2014...alt-brake-line) is it possible that they will replace the lines anyway under the recall? I am not trying to come off as cheap, but I do not want to pay to have the lines replaced if they will get replaced anyway.
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Old 12-08-2014, 10:12 PM   #16
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Quote:
Originally Posted by ItnStln View Post
This makes sense, thank you for the advise! I am not trying to be cheap, but since I have not had the brake lines checked under the recall (http://www.autonews.com/article/2014...alt-brake-line) is it possible that they will replace the lines anyway under the recall? I am not trying to come off as cheap, but I do not want to pay to have the lines replaced if they will get replaced anyway.

Quote:
The line leading to the brake calipers had a bend in it.
was this a metal, hard line???

or was this a rubber flex line that you 'bent'?

that 'recall' is for hard, metal lines
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