rattle and vibration when braking? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

dokterdewe · 03-13-2014, 09:53 AM

hello there,

folks, i have a problem that have been plaguing me since 1500 km ago, that is :

when braking at high speed (more than 100 km/h) there will be a continuous rattle/vibration coming from front (right) end. it felt directly at steering wheel and brake pedal.

the rattle/vibration will be greater if the speed is more/braking stronger... it will come up if i brake at more than half pedal travel... apparently it won't come out if i brake the pedal just a tiny bit.

it happens first when it was raining, i have had my brake cleaned twice at 6000 km and 12000 km (odometer now 13000 km), and alse get the brake setup checked (disc surface, pad surface, caliper cleaning, etc) and also the front tires are OK.. no bump.. surface is OK..

when this vibration happen, the brake stopping power is not fading, no changing direction whatsoever.. handling is stll there.. its just there is this vibration and it is annoying

made me a bit scared.. especially recently this happened at much slower speed, more than 70 km/h and brake it will keep vibrating until i reach 60 km/h and below...

the dealer now decided to change the front strut, both left and right (waiting for the part now) because they found abnormalities at the right front strut, saying something is loose at the inner part...

i have tried to re-align the wheels and it is still there... oh yes my setup is all standard, no mods, except a scorpion ex and beatsonic antenna..

any kind of info would help me.. thanks folks!

humfrz · 03-13-2014, 11:05 AM

Quote:

Originally Posted by dokterdewe

hello there,

folks, i have a problem that have been plaguing me since 1500 km ago, that is :

when braking at high speed (more than 100 km/h) there will be a continuous rattle/vibration coming from front (right) end. it felt directly at steering wheel and brake pedal.

Well, dokterdewe, ......that sounds like it could be a warped front brake rotor.

humfrz

jdubz13frs · 03-13-2014, 03:37 PM

@humfrz is right... you have a front rotor with excessive run-out. a new pair will remedy the problem. Toyota probably won't warranty brake parts, so you may be on your own for this one...

dokterdewe · 03-17-2014, 09:25 AM

Quote:

Originally Posted by humfrz

Well, dokterdewe, ......that sounds like it could be a warped front brake rotor.

humfrz

Quote:

Originally Posted by jdubz13frs

@humfrz is right... you have a front rotor with excessive run-out. a new pair will remedy the problem. Toyota probably won't warranty brake parts, so you may be on your own for this one...

the reaplacement front strut has come.. if this didn't change anything then i will ask for a new disc.. it is still under warranty.. if not then i'll just change to aftermarket one.. maybe dixcel..

lickitysplit · 03-17-2014, 09:34 AM

do you recall braking very hard and then hitting a puddle of water?

rabbit86_ · 08-18-2019, 06:37 PM

Quote:

Originally Posted by humfrz

Well, dokterdewe, ......that sounds like it could be a warped front brake rotor.

humfrz

I’ve had all brakes and rotors changed and I have the same issue

humfrz · 08-18-2019, 07:11 PM

Quote:

Originally Posted by rabbit86_

I’ve had all brakes and rotors changed and I have the same issue

Welcome to our forum, rabbit86 -

Tell us more about how your car is acting - maybe we can help.

When you had "all the brakes and rotors changed" did they change the brake pads and calipers?

humfrz

Ultramaroon · 08-18-2019, 08:33 PM

Time to consider things like worn rod end, ball joint, or even a torn/worn control arm bushing. I hope the dealer has inspected the tire, wheel, and hub.

Capt Spaulding · 08-18-2019, 09:03 PM

I'd also take a look at the rotors to see if the bedding layer is wearing off. The wife's Camry will judder braking from speed (actually all the time but most noticeably from higher speeds) if it gets granny driven around town for a long time. The rotor develops a blotchy look to it were the transfer layer is wearing off. 10 minutes on an empty back road, half a dozen threshold stops from 70 to 10 to bed the pads back in and all's good. It stinks for a while, but stops very well (until it doesn't again).

humfrz · 08-18-2019, 11:13 PM

Quote:

Originally Posted by Capt Spaulding

I'd also take a look at the rotors to see if the bedding layer is wearing off. The wife's Camry will judder braking from speed (actually all the time but most noticeably from higher speeds) if it gets granny driven around town for a long time. The rotor develops a blotchy look to it were the transfer layer is wearing off. 10 minutes on an empty back road, half a dozen threshold stops from 70 to 10 to bed the pads back in and all's good. It stinks for a while, but stops very well (until it doesn't again).

Is that called a South Texas brake job? -

humfrz

Capt Spaulding · 08-20-2019, 11:15 AM

Quote:

Originally Posted by humfrz

Is that called a South Texas brake job? -

humfrz

Not just down here. It's like an Italian tune up, but for brakes.

rabbit86_ · 09-01-2019, 01:44 AM

Quote:

Originally Posted by humfrz

Welcome to our forum, rabbit86 -

Tell us more about how your car is acting - maybe we can help.

When you had "all the brakes and rotors changed" did they change the brake pads and calipers?

humfrz

Here’s a video of what is doing

rabbit86_ · 09-01-2019, 01:45 AM

Quote:

Originally Posted by rabbit86_

Here’s a video of what is doing

Yes the pads and rotors were all changed

soundman98 · 09-01-2019, 01:52 AM

Do you have aftermarket wheels?

03-13-2014, 09:53 AM	#1
dokterdewe Senior Member Join Date: Dec 2012 Drives: an automatic lightning red 86 Location: Indonesia Posts: 137 Thanks: 90 Thanked 15 Times in 15 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	rattle and vibration when braking? hello there, folks, i have a problem that have been plaguing me since 1500 km ago, that is : when braking at high speed (more than 100 km/h) there will be a continuous rattle/vibration coming from front (right) end. it felt directly at steering wheel and brake pedal. the rattle/vibration will be greater if the speed is more/braking stronger... it will come up if i brake at more than half pedal travel... apparently it won't come out if i brake the pedal just a tiny bit. it happens first when it was raining, i have had my brake cleaned twice at 6000 km and 12000 km (odometer now 13000 km), and alse get the brake setup checked (disc surface, pad surface, caliper cleaning, etc) and also the front tires are OK.. no bump.. surface is OK.. when this vibration happen, the brake stopping power is not fading, no changing direction whatsoever.. handling is stll there.. its just there is this vibration and it is annoying made me a bit scared.. especially recently this happened at much slower speed, more than 70 km/h and brake it will keep vibrating until i reach 60 km/h and below... the dealer now decided to change the front strut, both left and right (waiting for the part now) because they found abnormalities at the right front strut, saying something is loose at the inner part... i have tried to re-align the wheels and it is still there... oh yes my setup is all standard, no mods, except a scorpion ex and beatsonic antenna.. any kind of info would help me.. thanks folks!

03-17-2014, 09:34 AM	#5
lickitysplit Don't care Join Date: Aug 2013 Drives: 2013 Whiteout FRS Location: Texas Posts: 233 Thanks: 3 Thanked 62 Times in 48 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	do you recall braking very hard and then hitting a puddle of water? __________________

08-18-2019, 08:33 PM	#8
Ultramaroon 義理チョコ Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 31,872 Thanks: 52,141 Thanked 36,522 Times in 18,923 Posts Mentioned: 1107 Post(s) Tagged: 9 Thread(s)	Time to consider things like worn rod end, ball joint, or even a torn/worn control arm bushing. I hope the dealer has inspected the tire, wheel, and hub. __________________ service manuals

08-18-2019, 09:03 PM	#9
Capt Spaulding Persona Non Grata Join Date: Nov 2015 Drives: '15 BRZ (WRB) Location: On the Border Posts: 1,882 Thanks: 2,016 Thanked 2,780 Times in 1,200 Posts Mentioned: 10 Post(s) Tagged: 1 Thread(s)	I'd also take a look at the rotors to see if the bedding layer is wearing off. The wife's Camry will judder braking from speed (actually all the time but most noticeably from higher speeds) if it gets granny driven around town for a long time. The rotor develops a blotchy look to it were the transfer layer is wearing off. 10 minutes on an empty back road, half a dozen threshold stops from 70 to 10 to bed the pads back in and all's good. It stinks for a while, but stops very well (until it doesn't again). __________________ Slow is smooth, and smooth is fast

09-01-2019, 01:52 AM	#14
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)	Do you have aftermarket wheels? __________________ "The time you enjoy wasting is not wasted time"

03-13-2014, 03:37 PM	#3
jdubz13frs Member Join Date: Jul 2013 Drives: 2013 Scion FR-S 6MT Location: Canandaigua, NY Posts: 45 Thanks: 25 Thanked 18 Times in 14 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	@humfrz is right... you have a front rotor with excessive run-out. a new pair will remedy the problem. Toyota probably won't warranty brake parts, so you may be on your own for this one...

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