oldsmobile forums   oldsmobile forums


Go Back   Oldsmobile Forums > Older Requested Oldsmobile Models > Oldsmobile Toronado

Oldsmobile Toronado Forum specifically intended for Oldsmobile Toronado based discussions.

Oldsmobile Forum: 90 Trofeo brake question
Reply
 
Thread Tools
  #1  
Old January 6th, 2013
LoganW20 LoganW20 is offline
Member
 
Join Date: Dec 2011
Location: Iowa
Posts: 51
LoganW20 is on a distinguished road
90 Trofeo brake question

This last time I drove my Trofeo I noticed when I started pressing down on my brake pedal I feel this continuous vibration on the pedal, I also have a fairly new accumulator so I don't think that should be it. Could someone help me out here and tell me what could possibly going wrong here, and if its something I should worry about? Thanks!
Reply With Quote

  #2  
Old January 6th, 2013
retroren retroren is offline
Senior Member
 
Join Date: Nov 2011
Location: SE Michigan
Posts: 130
retroren is on a distinguished road
I have experienced a vibration coming through the brake pedal due to warped front rotors. Also loose, broken or missing bushing, bolts and other steering related parts can send a shudder through the brake pedal. Hope this helps.
Reply With Quote
  #3  
Old January 7th, 2013
LoganW20 LoganW20 is offline
Member
 
Join Date: Dec 2011
Location: Iowa
Posts: 51
LoganW20 is on a distinguished road
I forgot to add that it vibrates a lot more when the car is in park and I just barely press down on the pedal... this really has me worried..
Reply With Quote
  #4  
Old January 7th, 2013
retroren retroren is offline
Senior Member
 
Join Date: Nov 2011
Location: SE Michigan
Posts: 130
retroren is on a distinguished road
Broken motor mount(s)? If the same sensation is coming through the pedal in park then something holding the engine or front end is transferring to the rotors/caliper then up to the brake pedal. Is it more pronounced when you are driving?
Reply With Quote
  #5  
Old January 7th, 2013
LoganW20 LoganW20 is offline
Member
 
Join Date: Dec 2011
Location: Iowa
Posts: 51
LoganW20 is on a distinguished road
I just noticed there's this loud buzzing notice right below the accumulator and this is actually draining my voltage quite a bit especially at a stop or braking at low speeds. So do you think this would be some kind of pump going bad? Seems like it to me but I'm not a mechanic or good with cars at all.
Reply With Quote
  #6  
Old January 7th, 2013
retroren retroren is offline
Senior Member
 
Join Date: Nov 2011
Location: SE Michigan
Posts: 130
retroren is on a distinguished road
Do you notice any momentary "hardness" feel to the brake pedal under normal braking? Maybe the electronically controlled booster is beginning to fail? Is your braking experience otherewise normal beyond the issues you have already mentioned? Do you know if you have the Teves brake system? The main clue is the Teves system has a black ball that is the accumulator.
Reply With Quote
  #7  
Old January 7th, 2013
LoganW20 LoganW20 is offline
Member
 
Join Date: Dec 2011
Location: Iowa
Posts: 51
LoganW20 is on a distinguished road
Yes its teves like I said before the buzzing is happening below the accumulator I had replaced the accumulator like 5 months ago. The braking seems normal but its just the pedal is vibrating while I brake and half the time my battery voltage is barely at 13 while I'm braking it even drops to 11 volts when I'm at a stop light. I have always had some kind of electrical short that i can't figure out but this new problem has been making it worse.
Reply With Quote
  #8  
Old January 8th, 2013
retroren retroren is offline
Senior Member
 
Join Date: Nov 2011
Location: SE Michigan
Posts: 130
retroren is on a distinguished road
Would you consider unplugging the ABS harness and going for a short test drive to see if the noise goes away and/or the voltage drain stops? Electrical drains can also be rooted in the serpentine belt, the tensioner or a failing alternator. Sorry I cannot be more specific. I'm just brainstorming.
Reply With Quote
  #9  
Old January 8th, 2013
LoganW20 LoganW20 is offline
Member
 
Join Date: Dec 2011
Location: Iowa
Posts: 51
LoganW20 is on a distinguished road
Where exactly is the ABS harness?
Reply With Quote
  #10  
Old January 8th, 2013
retroren retroren is offline
Senior Member
 
Join Date: Nov 2011
Location: SE Michigan
Posts: 130
retroren is on a distinguished road
Maybe it would wiser and safer to take it to the mechanic that installed the accumulator and explain this new development since it was installed. Also, you may want to order a service manual from ebay. They are about $15 and will provide you with tons of info.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT -4. The time now is 01:25 AM.


Advertising



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
oldsmobileforums.com recognizes that "Oldsmobile", it's logos and various model names and numbers are registered trademarks of the General Motors Corporation. These terms are used for identification purposes only. oldsmobileforums.com is not affiliated in any way with the General Motors Corporation, Oldsmobile or any other company listed herein. All information on this site is the opinion of its members and not the opinion of the site itself. ©2019 oldsmobileforums.com. All rights reserved.
MADISON ROSS MEDIA GROUP MARKETPLACE
Need products for your Oldsmobile? Check out your options at the links below:

Miss that Olds 442? Believe it or not, Kia may have something for you. The Kia Stinger is a large sport-oriented hatchback sedan in the mold of the Audi A7. Interested in an affordable, reliable luxury SUV? Check out the Kia Telluride.