Rubbing Friction Sound from Brakes? - Kia Forum
 
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post #1 of 9 (permalink) Old 04-19-2017, 10:23 AM Thread Starter
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Rubbing Friction Sound from Brakes?

Hey All,

I have a 2011 Kia Sorento LX.

So I changed my winter wheels/tires back to my stock aluminum wheels/tires and noticed my REAR rotors were beat up and the pads are fairly worn. The front look fine. I changed them in 2013 (no I don't remember the brand) but wow. They look terrible.

Anyway, After I changed the wheels I started noticing a rubbing kind of friction sound. It's more prominent at lower speeds, but is still there at highway speeds. No change when turning. I probably didn't hear it with the winters on because they are VERY chunky tires that cause a lot of road noise to begin with.

Anyway I think I'm going to have to change the brakes again so I'll have it all apart and see if it helps but has anyone seen this kind of wear before? Especially strange that the back wore worse than the front no?

Not great photos, but you can see a bit below.

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post #2 of 9 (permalink) Old 04-19-2017, 11:56 AM
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That's not uncommon at all...once bad spots in the rotors begin they only get worse. I'm about to change my front brakes.
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post #3 of 9 (permalink) Old 04-19-2017, 12:24 PM
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Can you tell where the rubbing sound is coming from?

Dust shield touching something?

One of the rears also has the parking brake. Does it move freely? Parking brake cable stuck or doesn't move freely?

If the brake "service" wasn't done, that could cause the pads to not move as easily as they should. This could cause one or both pads to stay near the rotor. I think the service is just cleaning up the rust and stuff and then putting some lube/grease on the place where the pads move. I'm not sure of the exact material they use but I BELIEVE it is made specifically for the brakes.

I'm at about 110,000km and I'll be doing my brakes soon. Still some material left. I found a place not too far away that provides rotors and pads. I bought the OE version rotors and ceramic pads for about $200-220 Canadian + tax for Canada. They are located in Markham, for those in Toronto area. Free shipping and no taxes for US customers. They ship using UPS.

For those interested:

Max Brakes Site: Brake Kits - OE Replacement Kits

https://www.amazon.ca/Front-Premium-...brakes+sorento

2011 2012 2013 Fits Kia Sorento OE Blank Rotor Max Pads F+R | eBay

These are all for the same OE kit. They also have all black and slotted/cross-drilled versions. Prices vary.

Last edited by VIM; 04-19-2017 at 12:31 PM.
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post #4 of 9 (permalink) Old 04-19-2017, 12:53 PM
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IMO, they look way overheated, it looks like galling on the rotor! You need new rotors. Are they really big tires, and or wheels? If so, you need bigger brakes IMO

Some previous Hyundai/Kia vehicles: 2002 Santa Fe LX V6 AWD, 2005 Tucson LX V6 AWD, 2010 Tucson GLS 2.4L AWD, 2011 Sportage EX 2.4L AWD, 2015 Sorento Ex V6 AWD
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post #5 of 9 (permalink) Old 04-19-2017, 04:05 PM
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Garage

When I saw your post I decided to translate for you my DIY instruction about replacement of rear rotors, thread is here http://www.kia-forums.com/2011-2013-...tors-when.html

Original post in Czech language is here Kia Club CZ/SK ? Zobrazit téma - DIY - Vymena brzdovych kotoucu there is also included DIY for front side (pictures are visible just to registred members there, sorry)

Beda @ Kia-club.org
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post #6 of 9 (permalink) Old 04-20-2017, 05:11 AM
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I have a brand new Sorento and had a rubbing noise coming from the back wheel.I brought it to the dealer who said the dust shield was touching the brake.They adjusted the shield so the noise is gone. I hope that this will not be a reoccurring problem.
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post #7 of 9 (permalink) Old 04-20-2017, 08:14 AM Thread Starter
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Wow. Such quick responses. Thanks all!

I will definitely change both the rotors and pads. Checking the dust shield is a good idea. I may have bent or bumped it when I changed my shocks last year. Also, the E-brake has been loose now for a few years. I was trying to tighten it by bringing the shoes closer and maybe they are too close. Another to check.

Also I tried adjusting the E-brake tensioner under the centre of the vehicle, but that nut is not gonna budge. Wide open to the elements (Canadian winter and salt) it's seized solid. Started bending the bolt from applying too much pressure. So I'll probably change the front half of the cable for good measure.

Thanks for the store suggestion VIM. And thanks for the Guide Beda!

Also as for big tires question MikDee, they're 16" and not really much bigger, but just cheap and chunky. They were great in the snow, but loud and annoying. The dealer once declared I had 4 bad wheel bearings once, but on further testing by the Kia Canada warranty rep they realized it was my winter tires That's what I get for trying to save a penny!
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post #8 of 9 (permalink) Old 04-20-2017, 06:28 PM
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If the tires are a little bigger, it shouldn't matter much, but Maybe your rear brakes for some reason, were taking more of a hit, then the fronts? Good Luck

Some previous Hyundai/Kia vehicles: 2002 Santa Fe LX V6 AWD, 2005 Tucson LX V6 AWD, 2010 Tucson GLS 2.4L AWD, 2011 Sportage EX 2.4L AWD, 2015 Sorento Ex V6 AWD
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post #9 of 9 (permalink) Old 04-21-2017, 07:03 AM Thread Starter
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Exactly. My fronts look great. Nice even wear, smooth rotors. It's the rears that are FUBARed. Will look to see what it was I bought and will avoid using them again.
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