Squealing PowerStop Z26 pads

2SS Capt · 04-04-2021, 05:41 PM

So I replaced my stock SS Brembo pads with PowerStop Z26 pads due to the ridiculous amount of dust from the OEM pads... All is good except one brake squeals when at slow speed coming to a stop, usually when it is cold... What can I do to resolve this and what are the common causes of brake squeal?

Jinkx · 04-11-2021, 03:09 AM

Did you lube the pad retaining pins w synth brake grease and the side edges of the pad plates w high temp ceramic or copper brake lube (lightly)? Thats how the factory brembo pads are installed (3M Brake Lube # 08945). Permatex High Temp Brake Lube # 80653 also works great.

Squeaking can be alot of things, from a loose shim backer, to a bent squeak indicator, to the 2 things I mentioned.

2SS Capt · 04-11-2021, 12:42 PM

Quote:

Originally Posted by Jinkx

Did you lube the pad retaining pins w synth brake grease and the side edges of the pad plates w copper antiseize (lightly)? Thats how the factory brembo pads are installed.

Squeaking can be alot of things, from a loose shim backer, to a bent squeak indicator, to the 2 things I mentioned.

I did lube the pins and the sides of the pads, I'll have to take it apart and do it again, drives me nuts, it is only one wheel... Next time I have it up on the QuickJacks I'll pull the wheel and see what is going on...

Jinkx · 04-12-2021, 02:43 PM

Quote:

Originally Posted by 2SS Capt

I did lube the pins and the sides of the pads, I'll have to take it apart and do it again, drives me nuts, it is only one wheel... Next time I have it up on the QuickJacks I'll pull the wheel and see what is going on...

Keep me posted. Very curious to the cause. Harsh/sharp outer edges of the pad can also cause, but thats sort of old school, not sure about these new fangled pads. I used to bevel the outer edges of pads themselves just slightly to ensure pads get a clean break in and establish their own edges.

Jinkx · 04-14-2021, 06:58 PM

As a side note it could also be a slightly bent dust shield touching the rotor. They are paper thin and bend if you look at em wrong

2SS Capt · 04-30-2021, 03:31 PM

Ok, it is my front right brake, took the pads out the other day, cleaned and re-lubed up everything, seemed good, went out today and it is squealing again, only at a crawl with light brake pressure... The dust shields I currently have on are the track deflectors... Thw squealing is intermittent, doesn't do it all the time, so think it is some weird vibration on the spring clip or something...

HELP!!! Driving me nuts!

2SS Capt · 04-30-2021, 05:48 PM

Quote:

Originally Posted by Jinkx

As a side note it could also be a slightly bent dust shield touching the rotor. They are paper thin and bend if you look at em wrong

Ok, I THINK (HOPE) I fixed it, Jinkx you may have been on to something with the dust shield, I was going super slow (barely moving the wheels) and got it to sing, got out and pushed the dust shield inboard a bit and now I can't get it to squeal at all and tried a bunch! I'm guessing it was just close enough and the track dust shields are so tiny that any vibration from the brakes makes the shield vibrate a bit and it was probably hitting the rotor...

Thanks for the suggestion, I'll let you guys know if it returns...

2SS Capt · 05-01-2021, 03:48 PM

Ok, wasn't the dust shield... Only happens when you are just creeping forward or backward with very light brake pressure... I'm pretty sure the squeal is coming from the pad contacting the rotor as the sound does change a bit as the wheel turns... It is driving me nuts and it is only my front right wheel doing this...

Alpha1BC · 05-01-2021, 05:40 PM

Try swapping the front pads from left wheel to right (i.e. take the driver side pad set and put them on the passenger side) and see if it follows the pads or not?

2SS Capt · 05-01-2021, 05:47 PM

Quote:

Originally Posted by Alpha1BC

Try swapping the front pads from left wheel to right (i.e. take the driver side pad set and put them on the passenger side) and see if it follows the pads or not?

Yeah, I might do that, was also thinking of just swapping the inner pad and the outer pad so if that helps at all...

Trochoidal · 05-01-2021, 06:55 PM

Did you try bedding them again since the squeal started?

2SS Capt · 05-01-2021, 06:57 PM

Quote:

Originally Posted by Trochoidal

Did you try bedding them again since the squeal started?

You know, I went out today and got them good and hot after the squeal started again, no squeal after that but didn't drive much, hopefully that will help...

04-04-2021, 05:41 PM	#1
2SS Capt 2020 Shadow Gray 2SS Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019 Location: SoCal Posts: 3,007	Squealing PowerStop Z26 pads So I replaced my stock SS Brembo pads with PowerStop Z26 pads due to the ridiculous amount of dust from the OEM pads... All is good except one brake squeals when at slow speed coming to a stop, usually when it is cold... What can I do to resolve this and what are the common causes of brake squeal? __________________ 2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Camaro Fender Badge, Footwell Lighting *Added after delivery:* - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless Sport Pedals, SS Wheel Caps, Black Lugs/Locks, GM Splash Guards, DD Smoked LED Markers, Smoked Rear Reflectors, Mishimoto Catch Can, Xpel PPF - Full Front, SunTek 35% Tint, CeramicPro coating, RST Stainless Brake Lines, Castrol SRF, MSD Super Conductor Wires *Left: My "fun" ride. Right: My "work" ride: a Gulfstream G600. One's top speed is 180 Mph, the other, 620 Mph...*

04-11-2021, 03:09 AM	#2
Jinkx Drives: 2017 Camaro 2SS Join Date: Feb 2016 Location: St. Louis Posts: 16	Did you lube the pad retaining pins w synth brake grease and the side edges of the pad plates w high temp ceramic or copper brake lube (lightly)? Thats how the factory brembo pads are installed (3M Brake Lube # 08945). Permatex High Temp Brake Lube # 80653 also works great. Squeaking can be alot of things, from a loose shim backer, to a bent squeak indicator, to the 2 things I mentioned. Last edited by Jinkx; 04-18-2021 at 04:26 PM.

04-30-2021, 03:31 PM	#6
2SS Capt 2020 Shadow Gray 2SS Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019 Location: SoCal Posts: 3,007	Ok, it is my front right brake, took the pads out the other day, cleaned and re-lubed up everything, seemed good, went out today and it is squealing again, only at a crawl with light brake pressure... The dust shields I currently have on are the track deflectors... Thw squealing is intermittent, doesn't do it all the time, so think it is some weird vibration on the spring clip or something... HELP!!! Driving me nuts! __________________ 2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Camaro Fender Badge, Footwell Lighting *Added after delivery:* - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless Sport Pedals, SS Wheel Caps, Black Lugs/Locks, GM Splash Guards, DD Smoked LED Markers, Smoked Rear Reflectors, Mishimoto Catch Can, Xpel PPF - Full Front, SunTek 35% Tint, CeramicPro coating, RST Stainless Brake Lines, Castrol SRF, MSD Super Conductor Wires *Left: My "fun" ride. Right: My "work" ride: a Gulfstream G600. One's top speed is 180 Mph, the other, 620 Mph...* Last edited by 2SS Capt; 04-30-2021 at 04:04 PM.

05-01-2021, 03:48 PM	#8
2SS Capt 2020 Shadow Gray 2SS Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019 Location: SoCal Posts: 3,007	Ok, wasn't the dust shield... Only happens when you are just creeping forward or backward with very light brake pressure... I'm pretty sure the squeal is coming from the pad contacting the rotor as the sound does change a bit as the wheel turns... It is driving me nuts and it is only my front right wheel doing this... __________________ 2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Camaro Fender Badge, Footwell Lighting *Added after delivery:* - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless Sport Pedals, SS Wheel Caps, Black Lugs/Locks, GM Splash Guards, DD Smoked LED Markers, Smoked Rear Reflectors, Mishimoto Catch Can, Xpel PPF - Full Front, SunTek 35% Tint, CeramicPro coating, RST Stainless Brake Lines, Castrol SRF, MSD Super Conductor Wires *Left: My "fun" ride. Right: My "work" ride: a Gulfstream G600. One's top speed is 180 Mph, the other, 620 Mph...*

05-01-2021, 05:40 PM	#9
Alpha1BC Drives: 2017 1SS 1LE Join Date: Jun 2016 Location: Detroit, MI Posts: 1,001	Try swapping the front pads from left wheel to right (i.e. take the driver side pad set and put them on the passenger side) and see if it follows the pads or not? __________________ 2017 SS 1LE.

04-14-2021, 06:58 PM	#5
Jinkx Drives: 2017 Camaro 2SS Join Date: Feb 2016 Location: St. Louis Posts: 16	As a side note it could also be a slightly bent dust shield touching the rotor. They are paper thin and bend if you look at em wrong

05-01-2021, 06:55 PM	#11
Trochoidal Drives: 2017 Camaro 2SS A8 Join Date: May 2019 Location: USA Posts: 1,656	Did you try bedding them again since the squeal started? __________________ Roto-Fab w/sound tube delete, Katech ported TB, Pray IM, Velossa, DD side markers, DSX FF, UPR Catch can, Halo brace, My custom vent gauge pod Originally Posted by arpad_m - “Aww, yet another oil thread with almost the same question in the OP“

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