help with corolla break squeal

[PoorOwner]

In a pinch I installed these on a 03 corolla in the family, He complains when backing up it squeals at first, and now driving forward also squeals. Otherwise the pads seems nice, low dust with good stopping power.

The clips seems to match the OEM shape and I thought was good quality, and I put the grease supplied on the "tabs" and the clips where it glides, a bit on the back of pad too I think (instruction says) supplied grease was not quite enough.

Anyway it's all coming apart again and I am going to take off the pad shims and spray the blue sticky coating and relube all the tabs with permatex stuff? Anyone knows, I did some research and corolla have squealing issues.. (more to do with owners buying non-OEM stuff I think?)

 

[tomstin]

I have found chamfering the edge of the pad seems to help prevent noise. Along with the clips and lube on the back of the pads.

 

[Kaizen]

when you did it did you use break cleaner on the rotors? was there a lip on the rotor? is the squeal coming from one wheel or all? I have never used factory pads in my life and never had issue. I also never use that blue stuff either. that will only stop a noise applying and releasing the breaks. if he hears it backing up on both wheels something else is wrong or you installed them wrong.

 

[T-Mac]

Make sure those pad shims at the top of your pic aren't touching the rotors-have seen that before

 

[dodgejunkie]

Use this on the backing plate of the pads.

http://www.autozone.com/brake-and-p...s/brake-lube/crc-disc-brake-quiet/348169_0_0/

 

[BradCMSP]

Make sure those pad shims at the top of your pic aren't touching the rotors-have seen that before

I've had this happen, definitely check that.

 

[PoorOwner]

thanks.

I haven't test drove and found which wheel yet.
The car has rear drum brakes and untouched it could but from there.


It was definitely quiet at the time I finished the front pads and test drove.

 

[like2wheel]

Use this on the backing plate of the pads.

http://www.autozone.com/brake-and-p...s/brake-lube/crc-disc-brake-quiet/348169_0_0/

Nobody uses that stuff anymore. In fact, I don't believe it's recommended on pads that use shims on the back (almost all modern quality pads today).

Use the high temp grease as per the instructions that came with the pads

 

[48RON54]

Make sure those pad shims at the top of your pic aren't touching the rotors-have seen that before

ditto.

I would wash pads and rotors with dish soap and water and reinstall. I used to use that goopy antisqueek stuff but I stopped some years ago once I found the dish soap and water idea.

You havent stated anything about what shape the rotors were in either, if they are grooved they will squeek.

 

[Charles (in GA)]

My '04 Vibe (same platform as the Corolla/Matrix) squeek some now that I replaced the pads. I used a ceramic pad, dont recall the brand right now.

 

[PoorOwner]

The rotors had no signs of vibrations, no serious grooves or look wavy across, so didn't put new rotors on.

What the heck is the dish soap good for?

 

[bwringer]

The wash with dish soap and warm water will help remove any dust or stray grease that could be causing the noise. Probably not practical at the moment in much of the US.



Anyway, '02 Corolla with 365,000 miles here.

That said, there's nothing the least bit special about Corolla brakes.

Assuming they're assembled correctly and nothing's touching or anything strange like that, the noise should go away gradually over the next few weeks as the new pads bed in. So telling the relative to just quit griping about the free work and drive the stupid thing may be a good option, depending on your relationship.

If that's not workable, you could clean the rotors thoroughly, maybe even scuff them up a bit with a Scotchbrite pad, then take it out to a lightly travelled road and do some hard stops to bed in the brakes.

Procedures differ, but about ten hard stops from 40mph to a near stop (don't stop all the way unless you have to; if you can, keep rolling and accelerate again between cycles) should make the pads a little more familiar with the rotors so they can stop squealing.

 

[nehog]

Brake stops your car, break damages your car!

 

[ScottsGT]

Nobody uses that stuff anymore. In fact, I don't believe it's recommended on pads that use shims on the back (almost all modern quality pads today).

Use the high temp grease as per the instructions that came with the pads

I use the red stuff all the time, and my brake jobs never squeal. Even with the shims, I use a thin layer on each side of the shim. All you really need to do is keep the pad and the shim from getting dust under them and allowing clearance between the two for vibration. I like the idea of the red "glue" better than a grease.

 

[dodgejunkie]

Nobody uses that stuff anymore. In fact, I don't believe it's recommended on pads that use shims on the back (almost all modern quality pads today).

Use the high temp grease as per the instructions that came with the pads

The same high temp grease which is completely gone the next time you check your brakes?

I'll stick with the red stuff that works.