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Strange brake feeling in my Accord #4442737
06/27/17 11:12 AM
06/27/17 11:12 AM
Joined: Dec 2008
Posts: 3,119
Occupied Virginia
Bottom_Feeder Offline OP
Bottom_Feeder  Offline OP
Joined: Dec 2008
Posts: 3,119
Occupied Virginia
Car is a 2015 Honda Accord Sport. The brakes on this thing are the best I've ever used in any car before (coming from someone who has driven nothing but G-bodies, minivans and econoboxes for the last 30 years). Pedal is high and firm, with lots of feel, and It'll stop hard and straight without any drama. They are one of the things I love about this car.

But they are also one of the things I hate about this car. I've noticed in the last few months that when at a slower rate of speed, like when applying the brakes somewhat lightly to eventually come to a stop at a light or whatever, the brakes make the car 'chug' noticeably. The only way I can describe how it feels is like half the rotors' surfaces are less grabby than the other half. It's definitely in time with wheel rotation. But the strange thing is that you feel it in your body and NOT through the pedal like you would if the rotors were warped or had pad buildup. The brakes feel nice and smooth through the pedal but the car does not come to a smooth stop. It's not bad enough to see from watching it from the outside, it is all felt through your butt in the seat.

So what could cause this? Did I overheat them somehow creating hard spots that are less grabby or something? Did I get them hot then get them wet? I've never felt this before and it drives me nuts every time I come to stop.

The car has only 25k miles on it. The rotors are nice and smooth and pads have plenty of meat on them. It's still under warranty so taking it to the dealer is always an option but I don't want to be charged for diagnosing wear items like brakes. I've also tried putting it in Neutral to see if it might have something to do with the CVT but that does not appear to change the way it feels while braking. I'm considering replacing the rotors and scuffing the pads a bit and see if that changes/helps/fixes it but them I'm afraid of losing the fantastic brakes this car has otherwise.

Anyone else experience this before?

Re: Strange brake feeling in my Accord [Re: Bottom_Feeder] #4442767
06/27/17 11:40 AM
06/27/17 11:40 AM
Joined: Apr 2013
Posts: 2,425
The Northeast
mclasser Offline
mclasser  Offline
Joined: Apr 2013
Posts: 2,425
The Northeast
Try re-bedding the brakes by SAFELY doing ten 60-10 mph stops.


2018 Hyundai Elantra VE -- 6K
2013 Honda Pilot EX-L 4WD -- 57K
2002 Honda Accord EX-L -- 212K

Re: Strange brake feeling in my Accord [Re: Bottom_Feeder] #4442789
06/27/17 11:59 AM
06/27/17 11:59 AM
Joined: Sep 2016
Posts: 168
MN
Tman220 Offline
Tman220  Offline
Joined: Sep 2016
Posts: 168
MN
The problem described is most likely an uneven transfer layer between the pads and rotors. Mclasser is right, the thing to try is re-bedding the brakes with the object being getting them dang hot and trying to redistribute the transfer layer evenly across the rotor surface.

When doing this be mindful not to make any complete stops with the rotors and pads so hot, otherwise that will lead to brake pad imprinting on the rotor which is probably what caused the issues in the first place.

In the future when making frequent and/or hard stops in traffic for a stoplight or what not, rather than coming to a complete stop the entire time, which cooks your pad onto you rotor, try creeping slightly and that will help prevent the problem from re-occurring.

Last edited by Tman220; 06/27/17 12:00 PM.

2012 Regal GS Turbo PP 5w30
1994 Camaro Z28 LT1 355 CI, 430 RWHP PP 5W30
Re: Strange brake feeling in my Accord [Re: Bottom_Feeder] #4442818
06/27/17 12:24 PM
06/27/17 12:24 PM
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
re: material transfer: this has to be A RACING ONLY PROPOSITION with certain metallurgy.

My Nissan suffers from horrendous brake shake that make the front end walk off the road at the end of a high speed stop (I have a daily 85-15 mph slow down over 1/4 mile at exit 2 onto rt 97W in Salem).


2014 Nissan Rogue S CVT, OC#10 47272mi-QSUD10W30+5w20 Toughguard Filter; '17 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter
Re: Strange brake feeling in my Accord [Re: ARCOgraphite] #4442830
06/27/17 12:38 PM
06/27/17 12:38 PM
Joined: Dec 2005
Posts: 10,355
Upper Midwest
kschachn Offline
kschachn  Offline
Joined: Dec 2005
Posts: 10,355
Upper Midwest
Originally Posted By: ARCOgraphite
My Nissan suffers from horrendous brake shake that make the front end walk off the road at the end of a high speed stop (I have a daily 85-15 mph slow down over 1/4 mile at exit 2 onto rt 97W in Salem).

I'll say this, after reading your incessant and seemingly never-ending posts about the chronic and ongoing issues you have with ALL your vehicles, I'd never, ever want to buy a car from you.

I mean come on. Assuming the Nissan actually does what you say, then that is a mechanical failure that can be determined and rectified. Why do you persist on driving it like that and feel the need to document your lack of maintenance here on BITOG?

Or are you somehow blaming this issue on the oil which is your usual culprit?


1994 BMW 530i, 238K
1996 Honda Accord, 266K
1999 Toyota Sienna, 407K
2000 Toyota ECHO, 280K
Re: Strange brake feeling in my Accord [Re: Bottom_Feeder] #4442849
06/27/17 12:55 PM
06/27/17 12:55 PM
Joined: Aug 2009
Posts: 577
Modesto,CA
mehullica Offline
mehullica  Offline
Joined: Aug 2009
Posts: 577
Modesto,CA
Sounds like the rear rotors have excessive thickness variation.

Re: Strange brake feeling in my Accord [Re: mehullica] #4442952
06/27/17 03:02 PM
06/27/17 03:02 PM
Joined: Feb 2009
Posts: 225
NY, USA
windeye Offline
windeye  Offline
Joined: Feb 2009
Posts: 225
NY, USA
Originally Posted By: mehullica
Sounds like the rear rotors have excessive thickness variation.


This is my diagnosis as well, if the car has had no other "incidents" in the 25k miles run. The front rotor warp is felt through the paddle and steering; and the rear rotor warp is felt through the entire car, esp. at high speed.

Last edited by windeye; 06/27/17 03:03 PM.

2000 Mazda MPV LX, 202,500 miles
2007 Mazda 3 Touring, 112,800 miles
2013 Toyota Camry XLE, 100,800 miles
Re: Strange brake feeling in my Accord [Re: kschachn] #4443727
06/28/17 10:19 AM
06/28/17 10:19 AM
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
Originally Posted By: kschachn
Originally Posted By: ARCOgraphite
My Nissan suffers from horrendous brake shake that make the front end walk off the road at the end of a high speed stop (I have a daily 85-15 mph slow down over 1/4 mile at exit 2 onto rt 97W in Salem).

I'll say this, after reading your incessant and seemingly never-ending posts about the chronic and ongoing issues you have with ALL your vehicles, I'd never, ever want to buy a car from you.

I mean come on. Assuming the Nissan actually does what you say, then that is a mechanical failure that can be determined and rectified. Why do you persist on driving it like that and feel the need to document your lack of maintenance here on BITOG?

Or are you somehow blaming this issue on the oil which is your usual culprit?
Id be happy to oblige by not selling you anything ... Even my vintage audio stuff.

Went to the dealer for remedy, and they would not fix it under warranty. Brake are not worn
I have MORE IMPORTANT stuff to deal with, currently.


THIS IS A COMMON NISSAN COMPLAINT

Last edited by ARCOgraphite; 06/28/17 10:27 AM.

2014 Nissan Rogue S CVT, OC#10 47272mi-QSUD10W30+5w20 Toughguard Filter; '17 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter
Re: Strange brake feeling in my Accord [Re: Bottom_Feeder] #4444023
06/28/17 02:23 PM
06/28/17 02:23 PM
Joined: Apr 2017
Posts: 1,481
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline
Joined: Apr 2017
Posts: 1,481
Ontario, Canada
Sounds like uneven pad transfer or corrosion on the rotors. Most likely on the rear if you are not feeling the steering wheel vibrate when braking at highway speeds.

A light machine of the rear rotors would most likely fix both of those issues.


Mighty Mouse Tech
BMW Tech, Former Acura Tech
2010 Civic Si Castrol 0W40, Redline MTL
2013 BMW 135i M Sport Edition Castrol 0W40, Redline MTL
Re: Strange brake feeling in my Accord [Re: Bottom_Feeder] #4444047
06/28/17 02:46 PM
06/28/17 02:46 PM
Joined: Jun 2011
Posts: 1,803
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,803
Crawfordville FL
My fusion had some shake with high speed braking. Installed a strut tower reinforcing bar and it was eliminated. I think the towers were flexing inward toward each other from the weight transfer. Slap a steel bar across the tops and they can't do that anymore.

Do you have shake/judder at low speeds as well?


2010 Ford Fusion SE 3.0L V6, 181 miles M1 HM 10w-30
Re: Strange brake feeling in my Accord [Re: Bottom_Feeder] #4642628
01/22/18 08:31 AM
01/22/18 08:31 AM
Joined: Dec 2008
Posts: 3,119
Occupied Virginia
Bottom_Feeder Offline OP
Bottom_Feeder  Offline OP
Joined: Dec 2008
Posts: 3,119
Occupied Virginia
In case anyone cares, I replaced the rear pads and rotors about a month ago and it didn't fix the issue. But then I did the fronts yesterday and it solved the problem. Go figure. I'm just glad it feels like a new(er) car again.

Parts used were Centric Premium e-coated rotors and Posi-Quiet Ceramic pads and I'm very happy with the results. The brakes feel subtly different but they still feel great, and the pulsation is gone.

An observation: The new Centric front rotors appeared to be slightly thicker then the OEM Honda parts with more meat but slightly less venting for the same overall width. They even felt a little heavier. And the hats may have been gray phosphate coated but vanes and the rear face sure weren't. Everything was covered with rust. Pretty disappointing for original Honda parts.

Re: Strange brake feeling in my Accord [Re: Bottom_Feeder] #4642884
01/22/18 12:31 PM
01/22/18 12:31 PM
Joined: Feb 2007
Posts: 3,704
Southeast
meep Offline
meep  Offline
Joined: Feb 2007
Posts: 3,704
Southeast
Nice job on the fix. Yes, we actually do like to know if and how problems are resolved.
-m


2018 F150
2015 crv (wifey!)

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