03-24-2024, 03:21 PM | #1 |
Brake squeal when coming to stop
I have installed Power Stop Z26 pads on the front of my 2020 Chevy Camaro 2SS with 4-piston Brembo brakes. I am having an issue with brake squeal at low speeds when coming to a stop. I have applied CRC Industries Disc Brake Quiet on the following: 1-top edge & side edge of the pads (on the metal part, not on the pad material of course); 2-back of the pad where they contact the pistons; 3-the 2 spring retention pins; and 4-the parts of the springs that contact the pins, and the pads. Am I missing some spot(s)? Am I using the wrong brake lube? I sure don't like using this brake lube anyway, it's very messy and I would be fine removing it all, cleaning everything up, and re-applying different brake lube, if that's what it takes.
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2020 Camaro 2SS - Riverside Blue, NPP, Magnetic Ride, Sunroof
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03-24-2024, 04:08 PM | #2 | |
2020 Shadow Gray 2SS
Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019
Location: SoCal
Posts: 3,191
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2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Fender Badge, Footwell Lighting
After delivery: - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless 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... BOTH are a lot of fun to operate... |
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03-25-2024, 10:54 AM | #3 | |
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,296
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Quote:
The squeal theoretically originates with the pad and some other surface, usually the rotor. I would order new front and rear pads from amazon. Swap out the front ones first and see if the noise goes away. if not, then swap the rears. At the very least you will get to see what the face of your old pads looks like and maybe find the noise source. There is always the possibility that the pads themselves are squealing due to a weak rivet or adhesive. You will never see that. I swapped my stock pads for z26's and I'm not sure I used any assembly lube when I reinstalled. Never had a squeal. And, please, no one flame me for saying I'm telling the Capt to "rip off" amazon. I'm saying to (maybe) return the unused rear pads if he doesn't need them. That's part of why prime offers free returns. it is a service you are paying for! |
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03-25-2024, 12:00 PM | #4 | |
2020 Shadow Gray 2SS
Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019
Location: SoCal
Posts: 3,191
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Interesting that you didn't use any brake lube. Are the Brembo's different and don't need lube (I was under the impression that pretty much all brake pad should be lubed where they move. I may not have bedded mine enough, it really hard to find somewhere out here where you can do that many stops in relatively quick succession and not having to sit a light or get interrupted by other traffic...
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2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Fender Badge, Footwell Lighting
After delivery: - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless 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... BOTH are a lot of fun to operate... |
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03-25-2024, 01:23 PM | #5 |
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,296
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I can't remember what exactly I did. Over years of doing this, sometimes I lube certain parts sometimes I don't. pretty sure i am SUPPOSED to be lubing contact points. Frankly, I now do a more thorough job on my kids' cars than my own!
In my defense, I will say that every brake system I have worked on was bone dry lube-wise when I took it apart. One exception being caliper slide pins protected by a boot. And I'm usually replacing pads for thickness, not squeal. That tells me that the overall design (spring clips, etc.) is pretty noise free. As an aside, some of these designs are pretty tricky with how spring tabs have to hook through certain bits. And you can't always trust a youtuber to have done it 100% correct. A lot of pads will seem to go in fine by jamming them, but best to pay attention to the details! |
03-25-2024, 02:37 PM | #6 |
Drives: 2016 Camaro 2SS Join Date: Apr 2017
Location: Stansbury Park, Utah
Posts: 1,098
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I had the exact same issue with those Z26's. That along with inferior braking. I'm sticking with the OEM Brembos. Better stopping power and no noise.
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03-27-2024, 10:45 PM | #7 |
Drives: Audi RS3 Join Date: Aug 2022
Location: Melbourne Australia
Posts: 73
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Hello from Aussie, I suggest you try this.
Get yourself onto a suitable stretch of road, & then do TEN HARD STOPS IN QUICK SUCCESSION, BUT DON'T STOP, from 60 mph to zero, but like I said, don't stop, this'll probably get ém smok'n, but it shouuld remove the film from discs/pads causing your squeal! After you've done your ten stops, drive around for 15 mins or so to let the brakes cool. |
03-27-2024, 11:10 PM | #8 | |
2020 Shadow Gray 2SS
Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019
Location: SoCal
Posts: 3,191
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Quote:
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2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Fender Badge, Footwell Lighting
After delivery: - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless 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... BOTH are a lot of fun to operate... |
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03-28-2024, 12:21 AM | #9 |
Drives: Audi RS3 Join Date: Aug 2022
Location: Melbourne Australia
Posts: 73
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Hello, yeah, for sure you need a deserted bit of road,...I got this procedure from the Aussie distributer of AP Racing (brakes), & it's worked for me with a few big braked cars. The problem is that these brakes need to be worked hard, but with ordinary driving this doesn't happen, hence the "workout" as described should assist.
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03-28-2024, 07:17 AM | #10 |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 12,022
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Continuing on Pickles's theme, you can try the official GM brake burnishing procedure on a low traffic road (or at 3am in the morning ), see below.
Not sure if ths process works as well with non-metallic brake pads as it does with the stock Ferodos, but definitely worth a try. I burnish the brakes every time I change pads using my favorite "private road" early in the morning or after hours, and the brakes are eerily quiet despite being oh so powerful. The other day I was traveling at about 60 mph when some moron suddenly decided to hook a left in front of me just past a hill crest with no turn signals except in the last second, and of course there was oncoming traffic, so he had to come to a full stop. I'd left a good bit of distance between him and me, as is my wont, but the hill threw a small wrench; however, the car stopped in a pinch just fine with zero brake squeal. Must have been scary for him, if he even looked in his rearview mirror, that is.
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735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 Last edited by arpad_m; 03-28-2024 at 12:57 PM. |
03-28-2024, 11:50 AM | #11 |
2020 Shadow Gray 2SS
Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019
Location: SoCal
Posts: 3,191
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Thanks guys, I'm really starting to think that is the problem, since the brakes are so big, when you are just doing regular casual driving the pads may build up spots that squeal on occasion...
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2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Fender Badge, Footwell Lighting
After delivery: - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless 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... BOTH are a lot of fun to operate... |
03-28-2024, 09:01 PM | #12 | |
Somewhere in the Kalahari
Drives: 2021/18 (de-fresh) 3LT RS Join Date: Dec 2017
Location: California
Posts: 711
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Quote:
No squeaks on stops at all. The only thing I have noticed is an infrequent one-time squeak pulling out of the garage in the morning, which seems to be related to cold temperatures more than anything else. Edit: One additional note - I wasn't sure if I got the wrong hardware with my Z26 kit, as it didn't seem to fit right, so I ended up reusing the "like new" stock hardware with the Z26 pads. Doesn't seem like that would play any part in these issues, but figured I would mention it. Last edited by The Maverick; 03-28-2024 at 09:15 PM. |
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03-29-2024, 04:16 PM | #13 | |
2020 Shadow Gray 2SS
Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019
Location: SoCal
Posts: 3,191
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Quote:
__________________
2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Fender Badge, Footwell Lighting
After delivery: - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless 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... BOTH are a lot of fun to operate... |
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03-29-2024, 08:58 PM | #14 | |
Quote:
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2020 Camaro 2SS - Riverside Blue, NPP, Magnetic Ride, Sunroof
RUXIFEY Smoked LED Side Marker Lights / Black SS emblem on rear bumper / Blue SS vinyl overlay on front bumper emblem / Wildhammer Rear Dark Reflectors / Trim Illusion Gloss Black Door Handle Covers / eBay Black Fuel Door / Screaming Chicken Fender Hash Marks / Color-Matched G2 Caliper Paint RE Audio RFX10D4 10" Sub / Hand-made sub enclosure / Hifonics Zeus ZRX1200.1D amp / JL Audio LoC-22 line output converter / Sub Thump Plug N Play T-Harness With ANC Defeat Harness Kit My Camaro Journal Last edited by DamonZ28; 03-29-2024 at 09:13 PM. |
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