Aggravating brake squeal with new powerstop z26's

[VroomVroom5.0]

Has anyone else experienced the most horrendous ear piercing squealing with powerstop z26's? I put new pads on a few months ago and ever since, if I come to a very slow stop, they let out a bad squeal that sounds like no other. It sounds like someone's playing a hi-pitched sax.

I've researched and heard conflicting information on the pad change procedures, I used new powerstop drilled and slotted rotors, and I have the brembos of course. For the Brembo pad pins, I did not lubricate them since many of the resources said there's no need to, and I only lubricated the pad backing and sides as directed. Do I need to completely take out the brembo pad pins again, lube them and re-lube the pads or is there any easier way?

I also did follow the correct pad break in procedure.

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[AvalancheSVT]

"harmonic resonance"

i know it doesn't seem intuitive at all but its probably the brake pads needing some of this stuff on the back of them. i've bought one bottle in my life and its not anywhere near empty. had it like 20 years

you can get it at any auto parts store and I use it with every brake job. never a peep. i had a powerstop kit on my cobra, everything was always awesome.

 

[VroomVroom5.0]

"harmonic resonance"

i know it doesn't seem intuitive at all but its probably the brake pads needing some of this stuff on the back of them. i've bought one bottle in my life and its not anywhere near empty. had it like 20 years

you can get it at any auto parts store and I use it with every brake job. never a peep. i had a powerstop kit on my cobra, everything was always awesome.

Alright I'll check this out. I'm assuming I need to clear out the grease on the back of the pad first?

 

[paulm1]

Has anyone else experienced the most horrendous ear piercing squealing with powerstop z26's? I put new pads on a few months ago and ever since, if I come to a very slow stop, they let out a bad squeal that sounds like no other. It sounds like someone's playing a hi-pitched sax.

I've researched and heard conflicting information on the pad change procedures, I used new powerstop drilled and slotted rotors, and I have the brembos of course. For the Brembo pad pins, I did not lubricate them since many of the resources said there's no need to, and I only lubricated the pad backing and sides as directed. Do I need to completely take out the brembo pad pins again, lube them and re-lube the pads or is there any easier way?

I also did follow the correct pad break in procedure.

Did you use the little packet of silicone brake lube that came with the pads?

 

[AvalancheSVT]

Alright I'll check this out. I'm assuming I need to clear out the grease on the back of the pad first?

when doing brakes you should always lube the sliders and use that read stuff to help the pad stick to the caliper (it goes on the back side). there probably isn't anything on there if you didn't put it there. its not grease, more like glue.

 

[VroomVroom5.0]

when doing brakes you should always lube the sliders and use that read stuff to help the pad stick to the caliper (it goes on the back side). there probably isn't anything on there if you didn't put it there. its not grease, more like glue.

Yeah I've always lubed the slider bolts when doing brakes and never had any issues, just this was my first time doing Brembos. I did use the grease packet on the sides and pad backing like other pads, just didn't grease the pins that hold the pads since conflicting information recommended not to. Will definitely grease the pins as well in addition to using the red stuff.

 

[Bulutt]

Ed China from “Wheeler Dealer” always used copper grease on the back of new pads to stop squealing.

 

[K4fxd]

I use a moly lube made by Mighty brakes.

 

[AvalancheSVT]

Ed China from “Wheeler Dealer” always used copper grease on the back of new pads to stop squealing.

its the same concept. just some high temp stuff to sort cushion and glue the pad to the thing it rides on (not the rails it slides on)

 

[EFI]

You must have missed adding grease to something, or it's the drilled rotors causing this noise. Although a high pitched squeal is usually the pads and the pistons.

I installed these pads specifically to get rid of the annoying squeals and noises of the stock PP pads and I have been pleasantly surprised about how quiet these are.

 

[stang-man]

upgraded to the z26 rotor pad kit, no dust, no noise

 

[linkysys]

Make sure to transfer the oem shims which are designed to reduce squeal and are not included with Powerstop brake pads. OEM pads have two metal shims per side.

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