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No break pressure. Shuddering and noise vibration when pressure is applied to break in park and drive


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Cape cod 12
New User

Aug 20, 2018, 10:21 AM

Post #1 of 7 (131 views)
No break pressure. Shuddering and noise vibration when pressure is applied to break in park and drive Sign In

Hi all I have an 05toyota Highlander. T thought it need new pads. So I got prepared and started. Pads are in great shape. Soo symptoms are while in park as soon as pressure is applied to the pedal there is a loud shaking vibrating noise which I can feel in the pedal this happens about a third of the way to the floor. And now currently since this has all started brakes go to the floor. Pads and rotors are good. Any ideas guys?


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Aug 20, 2018, 10:45 AM

Post #2 of 7 (118 views)
Re: No break pressure. Shuddering and noise vibration when pressure is applied to break in park and drive Sign In

From MA myself. Quote you, ">Pads and rotors are good.<"
Now the question is just how did you check them? Glance or take calipers OFF and pads a real good look? Rust belt as you know doesn't take long inside rotors and pads can separate not so bad on brake lines on these but never know.


You've probably blown the master cylinder now with some age they don't like traveling to the floor. It doesn't end with any one thing it need EVERYTHING checked about brakes, rust situation and know you have a warning light on but check for another for ABS prior to this bad messing up,


T



Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 20, 2018, 11:41 AM

Post #3 of 7 (112 views)
Re: No break pressure. Shuddering and noise vibration when pressure is applied to break in park and drive Sign In

If you are hearing/feeling a hum and vibration it sounds like the ABS is activating but that is very unusual to happen in Park.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Tom Greenleaf
Ultimate Carjunky / Moderator
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Aug 20, 2018, 1:35 PM

Post #4 of 7 (98 views)
Re: No break pressure. Shuddering and noise vibration when pressure is applied to break in park and drive Sign In

I've seen rust flakes pack magnets of them. Sometimes just high power blow it clean?
OP: Real brake checking if it's been a while take rotors OFF too. They rust inside where they meet the hubs and drop flakes. Doesn't have to be an ancient vehicle if that type clear all that out till nice and flush fit then smear only of grease or that just changing tires around can drop flakes and they go all out of whack. Cape Cod - both road salt and possible ocean salt it's bad enough where I am - brakes - anything it can find,


T



Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 20, 2018, 1:39 PM

Post #5 of 7 (96 views)
Re: No break pressure. Shuddering and noise vibration when pressure is applied to break in park and drive Sign In

None of that matters if this is happening while the car is in Park.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Aug 20, 2018, 2:19 PM

Post #6 of 7 (92 views)
Re: No break pressure. Shuddering and noise vibration when pressure is applied to break in park and drive Sign In

Your right is why I said it could have wrecked the master cylinder going deeper into bore tears up seals if crusted bore inside. None of this uncommon to me,


T



Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 20, 2018, 2:41 PM

Post #7 of 7 (90 views)
Re: No break pressure. Shuddering and noise vibration when pressure is applied to break in park and drive Sign In

No. it's not uncommon but but it doesn't create a loud vibrating noise.


I don't know if it applies here but there is a recall for the seals in the master.


RECALL 10V499000: BRAKE MASTER CYLINDER SEAL
VEHICLE MAKE/MODEL: MODEL YEAR(S):

Lexus/GS 2006

Lexus/IS 2006

Lexus/RX 2004-2006

Toyota/Avalon 2005-2006

Toyota /Highlander 2004-2006

MANUFACTURER: Toyota Motor Corporation

MFR'S REPORT DATE: October 21, 2010

NHTSA CAMPAIGN ID NUMBER: 10V499000

NHTSA ACTION NUMBER: N/A

COMPONENT: Service Brakes, Hydraulic:Foundation Components: Master Cylinder

POTENTIAL NUMBER OF UNITS AFFECTED: 728544

SUMMARY:
Toyota is recalling certain model year 2005-2006 Avalon, model year 2004-2006 Highlander, model year 2004-2006 Lexus RX, and model year 2006 Lexus GS and IS vehicles. Brake fluid containing polymers is used that acts as lubricants for certain brake system components. If replacement brake fluid is used that does not contain such polymers, or that contains only small amounts, a part of the rubber seal located at the rear of the brake master cylinder may become dry, and the seal may curl during movement of the piston. If this occurs, a small amount of brake fluid could slowly leak from the seal into the brake booster.

CONSEQUENCE:
A leak of brake fluid could lead to a change in brake pedal feel and overtime a degradation in braking performance increasing the risk of a crash.

REMEDY:
Dealers will replace the seal with a newly designed one. This service will be performed free of charge. The safety recall is expected to begin during November 2010. Owners may contact Toyota at 1-800-331-4331 and Lexus at 1-800-255-3987.

NOTES:
Owners may also contact The National Highway Traffic Safety Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to http://www.safercar.gov.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Aug 20, 2018, 2:47 PM)






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