Brake Squeal While Stopping ?
- Thread starter ChrisD46
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The wear indicators will only squeal when you hit the brakes. If they're squealing all the time, you have other issues.
Yeah, you'll have to take apart the brake that you suspect and check the pad thickness & wear sensor plus, check the sliders for enough lube & free movement as well as, the groove where the pads slide into the hold down bar and the anti-rattle springs/clips and the piston. I lube everything except the friction material and remove any rust. Often it's rust.
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I thank God I do not live in the rust belt !
On the " common cars " we own , pads are not expensive . I purchase the cheap pads that have life time warranty .
If I am going to jack up the car , pull the wheel / tire and take the brakes apart , I am going to slap pads on it . Which means I am going to source new pads before hand .
I usually also source the slime that you put on the back side / metal side of the pads and apply that before installing the pads .
On the " common cars " we own , pads are not expensive . I purchase the cheap pads that have life time warranty .
If I am going to jack up the car , pull the wheel / tire and take the brakes apart , I am going to slap pads on it . Which means I am going to source new pads before hand .
I usually also source the slime that you put on the back side / metal side of the pads and apply that before installing the pads .
Kestas
Staff member
If they are Pagid brakes they'll squeal.
They wont if you use this type of product on the back of the pads.
https://www.amazon.com/CRC-05016-Disc-Brake-Quiet/dp/B000CINV88
This is one from Permatex.
https://www.permatex.com/products/lubricants/specialty-lubricants-brakes/permatex-disc-brake-quiet/
https://www.amazon.com/CRC-05016-Disc-Brake-Quiet/dp/B000CINV88
This is one from Permatex.
https://www.permatex.com/products/lubricants/specialty-lubricants-brakes/permatex-disc-brake-quiet/
Originally Posted by Trav
They wont if you use this type of product on the back of the pads.
https://www.amazon.com/CRC-05016-Disc-Brake-Quiet/dp/B000CINV88
This is one from Permatex.
https://www.permatex.com/products/lubricants/specialty-lubricants-brakes/permatex-disc-brake-quiet/
How do those compare to the copper based antiseize for the back of the pads? I seem to get squeals twice a year requiring me to take apart and relube the slides and backing. Debating the disc brake quiet vs copper anti seize. Hoping one will actually last me a full year...
They wont if you use this type of product on the back of the pads.
https://www.amazon.com/CRC-05016-Disc-Brake-Quiet/dp/B000CINV88
This is one from Permatex.
https://www.permatex.com/products/lubricants/specialty-lubricants-brakes/permatex-disc-brake-quiet/
How do those compare to the copper based antiseize for the back of the pads? I seem to get squeals twice a year requiring me to take apart and relube the slides and backing. Debating the disc brake quiet vs copper anti seize. Hoping one will actually last me a full year...
Much better, it last until you disturb the pads by removing them. This is technically a membrane, it does not harden but does skin and become a semi firm film that cushions the vibration that causes squealing.
Put a thin film over the whole rear of the pad that contacts the piston and a 1/2" wide strip across the back of the outside pad, let it skin for 15-20 min and install. They will be quiet permanently.
Edit: BTW RTV or greases are not a substitute for this this type of product.
Put a thin film over the whole rear of the pad that contacts the piston and a 1/2" wide strip across the back of the outside pad, let it skin for 15-20 min and install. They will be quiet permanently.
Edit: BTW RTV or greases are not a substitute for this this type of product.
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Brake squeal is from something vibrating at high frequency, usually the pad itself. It is an inherent characteristic of disc brakes, and the number one complaint from car owners.
You need to eliminate the metal on metal contact points, preferably with a specialized brake quiet type product, like mentioned earlier.
And some pads, in my experience more aggressive high performance pads, or super cheap metallic pads, just squeal, period.
You need to eliminate the metal on metal contact points, preferably with a specialized brake quiet type product, like mentioned earlier.
And some pads, in my experience more aggressive high performance pads, or super cheap metallic pads, just squeal, period.
The secret to quiet OEM brake pads is anti-squeal shims that cover the back of the pad, and a fine layer of Moly grease in between that and the pad. Lubing the pad ears is less likely to help squealing, but keeps the pad wearing more evenly.
Certain brake/pad/rotor combinations are more squeal prone than others. Resurfacing the rotor and breaking in/bedding again can sometimes help. With some combos it's a crapshoot how long it takes until it comes back again.
Certain brake/pad/rotor combinations are more squeal prone than others. Resurfacing the rotor and breaking in/bedding again can sometimes help. With some combos it's a crapshoot how long it takes until it comes back again.
Originally Posted by WyrTwister
I thank God I do not live in the rust belt !
On the " common cars " we own , pads are not expensive . I purchase the cheap pads that have life time warranty .
If I am going to jack up the car , pull the wheel / tire and take the brakes apart , I am going to slap pads on it . Which means I am going to source new pads before hand .
I usually also source the slime that you put on the back side / metal side of the pads and apply that before installing the pads .
Lube everything indeed!
I thank God I do not live in the rust belt !
On the " common cars " we own , pads are not expensive . I purchase the cheap pads that have life time warranty .
If I am going to jack up the car , pull the wheel / tire and take the brakes apart , I am going to slap pads on it . Which means I am going to source new pads before hand .
I usually also source the slime that you put on the back side / metal side of the pads and apply that before installing the pads .
Lube everything indeed!
Originally Posted by Trav
Much better, it last until you disturb the pads by removing them. This is technically a membrane, it does not harden but does skin and become a semi firm film that cushions the vibration that causes squealing.
Put a thin film over the whole rear of the pad that contacts the piston and a 1/2" wide strip across the back of the outside pad, let it skin for 15-20 min and install. They will be quiet permanently.
Edit: BTW RTV or greases are not a substitute for this this type of product.
Very true Trav. I took your advice and the critics and used this. Worked well
Thanks
Much better, it last until you disturb the pads by removing them. This is technically a membrane, it does not harden but does skin and become a semi firm film that cushions the vibration that causes squealing.
Put a thin film over the whole rear of the pad that contacts the piston and a 1/2" wide strip across the back of the outside pad, let it skin for 15-20 min and install. They will be quiet permanently.
Edit: BTW RTV or greases are not a substitute for this this type of product.
Very true Trav. I took your advice and the critics and used this. Worked well
Thanks
Kestas
Staff member
Originally Posted by Trav
They wont if you use this type of product on the back of the pads.
https://www.amazon.com/CRC-05016-Disc-Brake-Quiet/dp/B000CINV88
This is one from Permatex.
https://www.permatex.com/products/lubricants/specialty-lubricants-brakes/permatex-disc-brake-quiet/
You can treat the backs of pads all you want, this will never help Pagid brakes. I traced the squeal to the pad/rotor interface. This is a known problem for these brakes. A Google search will tell you all you need to know.
They wont if you use this type of product on the back of the pads.
https://www.amazon.com/CRC-05016-Disc-Brake-Quiet/dp/B000CINV88
This is one from Permatex.
https://www.permatex.com/products/lubricants/specialty-lubricants-brakes/permatex-disc-brake-quiet/
You can treat the backs of pads all you want, this will never help Pagid brakes. I traced the squeal to the pad/rotor interface. This is a known problem for these brakes. A Google search will tell you all you need to know.
I have 30K on Pagid pads on a VW right now, not a peep out of them and have used Pagid for many years on many other cars. All the vibration that causes squeal comes from the pad/rotor interface regardless of brand, the membrane deadens the frequencies that cause squeal. Try it if you still have the problem.
Kestas
Staff member
I agree not all Pagid brakes will squeal. Mine do. I have twice buttered the pad backs with the red compound and got no relief. That is when I googled Pagid brakes and found squealing is a systematic problem for many cars with these pads, and no amount of anti-squeal paste will solve the problem.
Did you use the CRC stuff (not the red spray), let it set up for 20 min then install? Sorry I never had any problems with these pads.
Kestas
Staff member
Good for you. Yes, I was patient and let the CRC paste set up before installation. Did it again two years later. As mentioned before, there are many high-performance semimetallic pads that are simply prone to squealing and there is little that can be done about it.
Just out of curiosity I wonder how many of these people "bedded" in the pads.
Originally Posted by Char Baby
Originally Posted by WyrTwister
I thank God I do not live in the rust belt !
On the " common cars " we own , pads are not expensive . I purchase the cheap pads that have life time warranty .
If I am going to jack up the car , pull the wheel / tire and take the brakes apart , I am going to slap pads on it . Which means I am going to source new pads before hand .
I usually also source the slime that you put on the back side / metal side of the pads and apply that before installing the pads .
Lube everything indeed!
As stated , I do not live in the rust belt .
I have lubed the pins that the parts slide on . I have used slime on the back side of the pads . I have never lubed anything else , except the mounting bolts and lug nuts .
I do not own , nore never have purchased any of the disk brake caliper lube .
My brakes do not squal . We own 3 GM vehicles .
Originally Posted by WyrTwister
I thank God I do not live in the rust belt !
On the " common cars " we own , pads are not expensive . I purchase the cheap pads that have life time warranty .
If I am going to jack up the car , pull the wheel / tire and take the brakes apart , I am going to slap pads on it . Which means I am going to source new pads before hand .
I usually also source the slime that you put on the back side / metal side of the pads and apply that before installing the pads .
Lube everything indeed!
As stated , I do not live in the rust belt .
I have lubed the pins that the parts slide on . I have used slime on the back side of the pads . I have never lubed anything else , except the mounting bolts and lug nuts .
I do not own , nore never have purchased any of the disk brake caliper lube .
My brakes do not squal . We own 3 GM vehicles .
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