inconsistent brake squeaking, only happens with light brake - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

szjalo · 09-18-2020, 11:50 AM

Hi I have experienced a situation a couple thousand miles ago. My rear brakes start to make a squeaking noise when brake lightly. Hard brakes (brake pedal all the way down) are completely silent. Light brakes (<1/3 brake down) makes a high pitch noise. This is also much more frequent at low-medium speed (30-50 mph). When brake over 60mph, this rarely happens. This also only happen in the first few brakes in a period of time.

For example, I drive on freeway (>70mph), no noise--> hard brake into ramp, no noise) --> drive on local roads (~40mph), lots of noise on light braking --> continue to drive on local roads (more than 4-5 stops later), noise goes away.

Brake pads not brand new but should still have some life left. No visible wear/loose on brake clips.

Any insight?

Thanks

humfrz · 09-18-2020, 12:35 PM

Hi ya, szjalo -

How many miles on those brake pads?

Are they OEM pads, if not what kind?

Do you track your car much?

Have you had your wheels off and inspected the pads?

Maybe they are worn down to the wear indicators (whatever they are called)?

Maybe the pads are glazed?

Come back.

Tcoat · 09-18-2020, 02:11 PM

Quote:

Originally Posted by szjalo

Brake pads not brand new but should still have some life left.

Thanks

"Should" or do?
Start with and actual check of the pads and then move on from there.

RToyo86 · 09-18-2020, 03:57 PM

Visual inspection.

Then I'd apply some grease to the back of the pad.

PetrolioBenzina · 09-18-2020, 04:49 PM

Quote:

Originally Posted by szjalo

Hi I have experienced a situation a couple thousand miles ago. My rear brakes start to make a squeaking noise when brake lightly.
Any insight?
Thanks

Don't wait "a couple thousand miles"?

milanojess · 09-19-2020, 09:27 AM

Try repeat a brake pad bedding procedure, that usually clears minor noises when light braking, often caused by slight glacing of pad/rotor

JD001 · 09-19-2020, 09:33 AM

I have an urge to say something... Something to do with design, shit and can't see the pads.. But I can't place it into a sentence..

soundman98 · 09-19-2020, 10:20 AM

i love when my brakes squeal for a second on that initial pad contact. it helps me know that they're still there.

Tcoat · 09-19-2020, 11:18 AM

Quote:

Originally Posted by milanojess

Try repeat a brake pad bedding procedure, that usually clears minor noises when light braking, often caused by slight glacing of pad/rotor

Dude doesn't even know how much pad (if any) is left so what good is bedding it going to do?

Quote:

Originally Posted by JD001

I have an urge to say something... Something to do with design, shit and can't see the pads.. But I can't place it into a sentence..

JD001 · 09-19-2020, 11:33 AM

Quote:

Originally Posted by Tcoat

Dude doesn't even know how much pad (if any) is left so what good is bedding it going to do?

I'm struggling.. really, really struggling.. my brain in reverse gear...

bcj · 09-19-2020, 12:09 PM

PetrolioBenzina · 09-19-2020, 12:54 PM

Any updates, OP?

humfrz · 09-19-2020, 03:12 PM

Quote:

Originally Posted by soundman98

i love when my brakes squeal for a second on that initial pad contact. it helps me know that they're still there.

Sort of like back-in-the-day, when we used to "pump" the brakes, to make sure they were "up" to the task.

humfrz · 09-19-2020, 03:14 PM

Quote:

Originally Posted by JD001

I'm struggling.. really, really struggling.. my brain in reverse gear...

oh, just leave it be!

09-18-2020, 11:50 AM	#1
szjalo Junior Member Join Date: Jan 2017 Drives: 2014 Scion FR-S Location: galveston Posts: 9 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 1 Post(s) Tagged: 0 Thread(s)	inconsistent brake squeaking, only happens with light brake Hi I have experienced a situation a couple thousand miles ago. My rear brakes start to make a squeaking noise when brake lightly. Hard brakes (brake pedal all the way down) are completely silent. Light brakes (<1/3 brake down) makes a high pitch noise. This is also much more frequent at low-medium speed (30-50 mph). When brake over 60mph, this rarely happens. This also only happen in the first few brakes in a period of time. For example, I drive on freeway (>70mph), no noise--> hard brake into ramp, no noise) --> drive on local roads (~40mph), lots of noise on light braking --> continue to drive on local roads (more than 4-5 stops later), noise goes away. Brake pads not brand new but should still have some life left. No visible wear/loose on brake clips. Any insight? Thanks

09-19-2020, 10:20 AM	#8
soundman98 ProCrastinationConsultant Join Date: Sep 2013 Drives: '14 Ranger, '18 Tacoma 4Dr LB Location: chicago-ish Posts: 11,330 Thanks: 35,240 Thanked 13,673 Times in 6,781 Posts Mentioned: 98 Post(s) Tagged: 0 Thread(s)	i love when my brakes squeal for a second on that initial pad contact. it helps me know that they're still there. __________________ "The time you enjoy wasting is not wasted time"

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09-18-2020, 12:35 PM	#2
humfrz Senior Member Join Date: May 2013 Drives: 2013 FR-S, white, MT Location: Puyallup, WA Posts: 29,868 Thanks: 28,790 Thanked 31,816 Times in 16,425 Posts Mentioned: 708 Post(s) Tagged: 2 Thread(s)	Hi ya, szjalo - How many miles on those brake pads? Are they OEM pads, if not what kind? Do you track your car much? Have you had your wheels off and inspected the pads? Maybe they are worn down to the wear indicators (whatever they are called)? Maybe the pads are glazed? Come back.

09-18-2020, 03:57 PM	#4
RToyo86 Senior Member Join Date: Mar 2018 Drives: 17 Asphalt 86 Location: Ottawa Posts: 2,168 Thanks: 1,709 Thanked 2,211 Times in 1,129 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	Visual inspection. Then I'd apply some grease to the back of the pad.

09-19-2020, 09:33 AM	#7
JD001 Senior Member Join Date: Apr 2015 Drives: Subaru BRZ Location: UK Posts: 6,028 Thanks: 7,652 Thanked 6,187 Times in 3,474 Posts Mentioned: 25 Post(s) Tagged: 2 Thread(s)	I have an urge to say something... Something to do with design, shit and can't see the pads.. But I can't place it into a sentence..

09-19-2020, 12:54 PM	#12
PetrolioBenzina Senior Member Join Date: Sep 2016 Drives: 17 86 Location: Oregon Posts: 1,671 Thanks: 75 Thanked 1,133 Times in 647 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	Any updates, OP?

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