Brake squeal after installing new rear pads and rotors

[p00flakes]

Hi All,

I recently installed new rear pads, calipers and rotors on my 2006 Sport edition

Rotors: Brembo Part #09.B634.11
Pads: AKEBONO ASP606A Ceramic

I'm experiencing a loud squeal coming from the brakes when I first drive off for the first few brake applications (almost like when the pads are low on material). The squeal goes away completely after a couple of blocks, but returns again every time I leave the house in the morning (I park in an underground garage as well). When performing the brake install, I made sure to lube all the contact surfaces on the pads, but can't help to think that the squeal is perhaps due to the ceramic pad material? Anyone else have this experience, or could point me in the right direction to troubleshoot this issue? Thanks in advance!

P.

 

[OR VietVet]

Why did you install the rear brake components to begin with? Because of the same noise? Where is the squeal coming from, front or rear or both?

 

[88Center]

1. Did you replace all hardware with new, such as pins, clips, and rubber boots?
2. Did you lube slide pins and new brake hardware?
3. Did you lube the other areas properly?
4. Did you use the 30-30-30 rule? It's 30 gradual stops from 30 mph, allowing 30 seconds in between. This allows the pad and rotor to be properly confirmed to one another to increase braking performance.

Is there anything you missed from these vids?

How to Replace Front Brakes 03-09 Toyota 4Runner

https://www.youtube.com/watch?v=jt3V6jXEACA


How to Replace Rear Brakes 03-09 Toyota 4Runner

https://www.youtube.com/watch?v=DYhZU5-yumI


How To Replace Your Brakes on Your Toyota and Lexus Like a Pro

https://www.youtube.com/watch?v=qcGPRntO2Ws

 

[ArthurKotb]

Are the emergency brakes releasing?

 

[Hungryhawk]

Did you follow conventional pad "bed in procedure" after completion of brake job?

 

[SocalSam]

Have to ask. There are two sizes of front brake rotors and calipers for our trucks. Sport uses the larger size. On the original caliper, there is a code 13WH which is the larger size for Sport.

 

[SocalSam]

Please ignore my previous post. Our host software won't allow me to edit.

 

[Drcoffee]

OP said he replaced the rear pads.

There can be several different sources of a squeal.

1) bent slash guard can rub the rotor
2) the stainless clips that hold the pads can be installed wrong or not set properly. You must clean out the dirt and rust before inserting them. Sometimes the aftermarket parts dont fit right. Or they can be too tight not allowing the pads to retract from the rotor.
3) did you bleed correctly buy pressing and holding the brake pedal while turning the key on?

You really need to take it all apart and start over. Make sure the pads move freely. I found that cleaning the original clips and reusing them vs using aftermarket crap.

 

[p00flakes]

Why did you install the rear brake components to begin with? Because of the same noise? Where is the squeal coming from, front or rear or both?

Hi! I installed the brake components because I figured the stock pads (approx. 60k miles on them) would be almost end of life (and wanted to have highest braking performance possible). No noise when the components were replaced. Noise is coming from rear.

 

[p00flakes]

Hi, please see responses below:

1. Did you replace all hardware with new, such as pins, clips, and rubber boots? Pins and clips yes. Rubber boots (assume this is where the calipers are) no.
2. Did you lube slide pins and new brake hardware? Yes.
3. Did you lube the other areas properly? Yes (all contact points between the pads and the calipers, rear of the pad shim).
4. Did you use the 30-30-30 rule? It's 30 gradual stops from 30 mph, allowing 30 seconds in between. This allows the pad and rotor to be properly confirmed to one another to increase braking performance. I actually did not do this as the features on the pad said "no break in required". More Information for AKEBONO ASP606A Maybe I should try to do this?

Is there anything you missed from these vids? I don't believe so.

How to Replace Front Brakes 03-09 Toyota 4Runner

https://www.youtube.com/watch?v=jt3V6jXEACA


How to Replace Rear Brakes 03-09 Toyota 4Runner

https://www.youtube.com/watch?v=DYhZU5-yumI


How To Replace Your Brakes on Your Toyota and Lexus Like a Pro

https://www.youtube.com/watch?v=qcGPRntO2Ws

 

[p00flakes]

Are the emergency brakes releasing?

Yes as far as I can tell, no issues with e brake.

 

[p00flakes]

Hi! Please see responses below:

OP said he replaced the rear pads.

There can be several different sources of a squeal.

1) bent slash guard can rub the rotor. A: Agree, however I do not see any noticeable bending.
2) the stainless clips that hold the pads can be installed wrong or not set properly. You must clean out the dirt and rust before inserting them. Sometimes the aftermarket parts dont fit right. Or they can be too tight not allowing the pads to retract from the rotor. A: Hmm ok. I did run over the clip mounting points with a stiff wire brush to remove rust etc. during the install.
3) did you bleed correctly buy pressing and holding the brake pedal while turning the key on? A: I believe you are referring to perhaps air in the brake line? I am not experiencing a soft or mushy brake pedal.

You really need to take it all apart and start over. Make sure the pads move freely. I found that cleaning the original clips and reusing them vs using aftermarket crap. A: Hmm I think the issue here is that they are *only* squeaky during the first couple of stops after driving the car from cold. The squeal goes away completely after that. I'd imagine that a stuck/rusty clip surface would show the issue consistently?

 

[Drcoffee]

Its been a minute since I did my brakes. Did the rear pads come with springs?

 

[Cezar]

Had this same issue. I let a shop handle it as I was getting tires the next day. I had bent one of the clips during installation.

 

[p00flakes]

Its been a minute since I did my brakes. Did the rear pads come with springs?

Yes came with springs. The strange thing is that they only squeak when first leaving the house in the morning. After a couple of stops, they stop squealing. However, they are quite loud when they do squeal...

 

[p00flakes]

Had this same issue. I let a shop handle it as I was getting tires the next day. I had bent one of the clips during installation.

Hi Cezar, thanks for your response. Did you have a consistent squealing, or only intermittent?