Brake pad issue

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maximus

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I recently did a brake job on my Sonata replacing pads, rotors and all associated hardware. The pads are Duralast Gold from AZ which were exchanged under "warranty." My issue is the pads slide up and down in the caliper bracket and making clunking sounds when going over bumps. I made some shims with a soda can and it helps, but I know this is not ideal. Is this common? Should I try exchanging the pads again? The braking performance and pedal feel are excellent.

screen grab
 
Originally Posted By: edwardh1
mine make noise in an 04 highlandr when hitting road "dots" at 40 MPH


Does it happen repetitively? My gosh it's affecting
your posts.
wink.gif
 
If you're sure it is the brake pads, a brake hardware kit for less than 10 bucks in place of your DIY shims would probably fix that. However, Sonatas are somewhat known for bad ball joints and LCA's acting up after replacing the rotars for some reason.
 
Originally Posted By: ejes
If you're sure it is the brake pads, a brake hardware kit for less than 10 bucks in place of your DIY shims would probably fix that. However, Sonatas are somewhat known for bad ball joints and LCA's acting up after replacing the rotars for some reason.


+1

Try the rubber coated brake abutment clips. i couldnt even get mine to work since it made it too tight to install the pads but it might be the solution to your problem.
 
Originally Posted By: Nick1994
Buy OEM clips and shims, the hardware that comes aftermarket is often junk.

Yup. The issue is with the pad and/or the hardware. Sometimes aftermarket pads and hardware do not fit as tightly as the OE part, so clunking and clicking noises from the pad shifting are not uncommon.

IIRC the dealer pad kit for this car comes with hardware and costs about $65.
 
All hardware is new. I even tried the pads with the old hardware. I'll just source some new pads. The stealer wants $75 for a set. *Sigh*
 
I have always bought my pads from Rockauto. I use Raybestos Advanced pads and they come with brake abutment clips. While installing new pads it's a good thing to use some kind of paste (ie. copper) between the caliper and shims.

But clunking usually means other things... like worn out ball joints, bushings or loose suspension bolts.
 
Originally Posted By: Enumeratum
I have always bought my pads from Rockauto. I use Raybestos Advanced pads and they come with brake abutment clips. While installing new pads it's a good thing to use some kind of paste (ie. copper) between the caliper and shims.

But clunking usually means other things... like worn out ball joints, bushings or loose suspension bolts.


I can put a flathead screwdriver under the pad ear and move it quite a bit. Also, theres no clunking when the brakes are applied, even when going over bumps. I guess ill get OEM pads.
 
Originally Posted By: maximus
All hardware is new. I even tried the pads with the old hardware. I'll just source some new pads. The stealer wants $75 for a set. *Sigh*


Sometimes, aftermarket parts do not fit correctly - especially ones from retail stores.

If you do not have the sports suspension, this may be the correct pad set:

http://www.ebay.com/itm/Genuine-OEM-Fron...2fZ&vxp=mtr
 
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I got some Beck Arnley pads from Rockauto. The box they came in says "Sangsin Brake." They were made in Korea and seem to be high quality. They fit much better than the duralast pads, but I have a slight concern. They have built on shims with a rubberish backing. Was it ok to install them just like that? I think originally the brakes had a metal shim that went on the back of the pads but these are long gone from when I did my first brake job on this car.
 
Rubber backed shims are not uncommon on aftermarket pads. OE usually uses stainless steel. A lot of these "reboxers" will use a material from the OES that is similar but not completely identical to the factory pad, but will use aftermarket hardware to reduce costs.
 
Thanks for the replies, esp Critic. I guess whatever shims a set of pads come with are the correct ones to use, so Im not going to worry about using OEM stainless shims. Im done with this project. The brakes feel good and they're quiet in all aspects.
 
Originally Posted By: maximus
Thanks for the replies, esp Critic. I guess whatever shims a set of pads come with are the correct ones to use, so Im not going to worry about using OEM stainless shims. Im done with this project. The brakes feel good and they're quiet in all aspects.



No problem. Usually if you have the correct pad material, correct chamfers, slots, etc, a non-OE shim should still perform adequately. If they get noisy later on, you can always get the proper shim kit from the dealer.
 
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