It is currently Sun Oct 21, 2018 5:57 pm

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 21 posts ]  Go to page 1, 2  Next
Author Message
PostPosted: Sat May 12, 2018 6:39 pm 
Offline
SLE Member
SLE Member

Joined: Mon Aug 11, 2014 2:40 am
Posts: 68
Year and Trim: 1998 pontiac bonneville se
1999 Pontiac Bonneville. Purchased everything brand new for the rear brakes and even had the work done by gm garage and when I'm close to 5mph and under getting ready to stop I start hearing metal on metal. .... it's associated with the rear brakes only. ..
They've looked at it twice and cleaned the system, but .nobody can figure it out. ... I don't know what to do. ...brand new parts, springs, wheel cylinders, new rorors... everything new... the pads are equal in length for both sides.


Top
 Profile  
 
PostPosted: Sun May 13, 2018 12:09 am 
Offline
Certified Bonneville Nut
Certified Bonneville Nut
User avatar

Joined: Tue May 27, 2008 8:53 am
Posts: 5343
Location: Las Cruces, NM
Year and Trim: 1993 Buick Park Avenue
1994 Buick Regal Custom
Look for other parts rubbing. There was a point my EBrake cable was rubbing on the center hub, but it was hap. Also check to make sure they are properly adjusted, and centered.

Also check for a failing hub bearing in the rear.

_________________
~Randall~
ImageImage

1993 Buick Park Avenue - 197k - Some odds and ends done - Simply won't die
1994 Buick Regal - 78k - Bone stock - Always ready for a good kicking
1990 Oldsmobile 88 - Gone to a better place


Top
 Profile  
 
PostPosted: Sun May 13, 2018 2:13 am 
Offline
Posts like an L67
Posts like an L67

Joined: Sun Aug 22, 2010 11:11 pm
Posts: 1588
Location: Ontario, Canada
Year and Trim: 2000 Bonniville SSEi L67
if its drum, there may be some sort of backing plate mud guard - may be bent and touching the drum.

take wheel off and spin it by hand - get helper to brake and find the issue - back off the adjuster and see if it helps.

_________________
poverty forces one to do unorthodox things

2000 SSEi
past rides:
1996 SSEi
1992 GTP
1987 Grand Am


Top
 Profile  
 
PostPosted: Sun May 13, 2018 3:39 pm 
Offline
SLE Member
SLE Member

Joined: Sat Dec 10, 2011 9:24 pm
Posts: 34
Year and Trim: 1992 SSE
2005 GXP
I'd check the dust shield for rubbing where it fits into the "groove" of the brake drum.


Top
 Profile  
 
PostPosted: Mon May 14, 2018 6:47 am 
Offline
Posts like an L67
Posts like an L67

Joined: Thu May 01, 2014 9:37 pm
Posts: 1277
Year and Trim: 1993 SLE
1998 SE
2001 SSEI
2002 SSEI
Did the problem occur before the rear brakes were serviced or did it begin immediately after the work was done?


Top
 Profile  
 
PostPosted: Mon May 14, 2018 8:01 am 
Offline
Certified Bonneville Nut
Certified Bonneville Nut
User avatar

Joined: Wed May 21, 2008 11:47 pm
Posts: 5999
Location: Philly
Year and Trim: 95 SLE
RJolly87 wrote:
Also check for a failing hub bearing in the rear.


x2

_________________
Image
95 SLE... a keeper. 241k miles. Low and Slow.
98 Infiniti vq35'd i30: 13.3@104mph, 30MPG Hwy
07 Infiniti G35s 6MT
07 Ducati Monster S2R 800 with DS1000 swap
05 Suzuki DRZ400S
83 Yamaha IT175K
74 Yamaha DT175: brap brap, brap
72 Yamaha DS7: '74 RD250 swap, JL chambers

Info on dropping a 92-99: Here.


Top
 Profile  
 
PostPosted: Mon May 14, 2018 12:27 pm 
Offline
SLE Member
SLE Member

Joined: Mon Aug 11, 2014 2:40 am
Posts: 68
Year and Trim: 1998 pontiac bonneville se
The problem was occurring before I bought all new parts. I bought all new parts and had them installed. Took car back cause same noise from 20mph to stop. They replaced brake shoes with new ones for free. .. left and problem started again. I'm taking it back Wednesday again. I even watched them do the work. I'm just totally lost.


Top
 Profile  
 
PostPosted: Mon May 14, 2018 12:30 pm 
Offline
SLE Member
SLE Member

Joined: Mon Aug 11, 2014 2:40 am
Posts: 68
Year and Trim: 1998 pontiac bonneville se
Dumb question but how do you back off the adjuster? What direction?


Top
 Profile  
 
PostPosted: Mon May 14, 2018 1:16 pm 
Offline
Posts like an L67
Posts like an L67

Joined: Thu May 01, 2014 9:37 pm
Posts: 1277
Year and Trim: 1993 SLE
1998 SE
2001 SSEI
2002 SSEI
The very first thing that should be done is to pinpoint which wheel the sound is coming from.
Once in a while, people are fooled by front brake noise seeming to come from the rear.

From the hole in the backing plate, the adjuster would be moved upward AFTER pushing the adjuster lever slightly away from the adjuster with a very thin screwdriver.
Of course, with the drum removed...from the hub side, the adjuster would be moved downward after pulling the adjuster lever away to allow the adjuster teeth to pass it.
Illustrations here:
https://www.justanswer.com/pontiac/1x0w ... -rear.html

I hope it's correct to assume that the points on the backing plate where the shoes pivot and slide have been cleaned and lubricated.
Did you replace the drums (you mentioned rorors?) ?
Assuming the drums were replaced or machined, then it should either be a bad wheel bearing or the parking brake cable is improperly positioned or there's a bend in the backing plate that scrapes against the drum.
The latter should be repairable with pliers.
If the drums were not replaced or machined, an out of round drum will cause issues.
If it's the drum scraping on the backing plate or the parking brake cable contacting the hub, any mechanic should easily find the problem by first isolating it to a single wheel and then looking for shiny metal.
In either instance, I'd expect the noise to be present whether the brakes are applied or not. Same for the wheel bearing, if worn.
The only other possibilities that I can think of are a parking brake cable hanging up which this should be noticeable by considerable heat emanating from one wheel.

Best to have the mechanic take a drive with you, so you can point out the noise, in case he hasn't heard it.


Top
 Profile  
 
PostPosted: Mon May 14, 2018 8:11 pm 
Offline
Posts like an L67
Posts like an L67

Joined: Sun Aug 22, 2010 11:11 pm
Posts: 1588
Location: Ontario, Canada
Year and Trim: 2000 Bonniville SSEi L67
wpbrink wrote:
Dumb question but how do you back off the adjuster? What direction?


I spin the drum - see the resistance

turn the gear one way - put back drum and spin - is it looser than before?

if yes, keep spinning in same direction.

_________________
poverty forces one to do unorthodox things

2000 SSEi
past rides:
1996 SSEi
1992 GTP
1987 Grand Am


Top
 Profile  
 
PostPosted: Mon May 14, 2018 8:43 pm 
Offline
Certified Bonneville Nut
Certified Bonneville Nut
User avatar

Joined: Wed May 21, 2008 11:47 pm
Posts: 5999
Location: Philly
Year and Trim: 95 SLE
So wheel bearing tho?

_________________
Image
95 SLE... a keeper. 241k miles. Low and Slow.
98 Infiniti vq35'd i30: 13.3@104mph, 30MPG Hwy
07 Infiniti G35s 6MT
07 Ducati Monster S2R 800 with DS1000 swap
05 Suzuki DRZ400S
83 Yamaha IT175K
74 Yamaha DT175: brap brap, brap
72 Yamaha DS7: '74 RD250 swap, JL chambers

Info on dropping a 92-99: Here.


Top
 Profile  
 
PostPosted: Sun May 20, 2018 9:34 am 
Offline
SLE Member
SLE Member

Joined: Mon Aug 11, 2014 2:40 am
Posts: 68
Year and Trim: 1998 pontiac bonneville se
Update. So they put new pads on the rear but now the abs light is on. Could a sensor be bad in the rear wheels or I see something about an abs module located in the engine area. How do I test these points?


Top
 Profile  
 
PostPosted: Mon May 21, 2018 2:15 am 
Offline
Posts like an L67
Posts like an L67

Joined: Sun Aug 22, 2010 11:11 pm
Posts: 1588
Location: Ontario, Canada
Year and Trim: 2000 Bonniville SSEi L67
there should be brake pressure proportioners on both rear lines -is the one for that drum there?

small metal canister mounted inline

_________________
poverty forces one to do unorthodox things

2000 SSEi
past rides:
1996 SSEi
1992 GTP
1987 Grand Am


Top
 Profile  
 
PostPosted: Mon May 21, 2018 3:31 am 
Offline
SLE Member
SLE Member

Joined: Mon Aug 11, 2014 2:40 am
Posts: 68
Year and Trim: 1998 pontiac bonneville se
I will have to check. .. thanks for the tip


Top
 Profile  
 
PostPosted: Mon May 21, 2018 4:01 am 
Offline
SLE Member
SLE Member

Joined: Mon Aug 11, 2014 2:40 am
Posts: 68
Year and Trim: 1998 pontiac bonneville se
I wanna throw a question out there on the rear brakes and the abs light coming on. Let's say I completely disable the abs system. Is it harder on the rear brake system with it disabled? I know the importance of the abs system but I'm trying to do a process of elimination before I buy parts. One reader suggested the wheel bearing be replaced due to a rear bad sensor. I honestly don't know where to start between the abs module or the bearing. Would auto zone be able to pull the exact code?


Top
 Profile  
 
PostPosted: Mon May 21, 2018 10:30 am 
Offline
Posts like an L67
Posts like an L67

Joined: Thu May 01, 2014 9:37 pm
Posts: 1277
Year and Trim: 1993 SLE
1998 SE
2001 SSEI
2002 SSEI
Disabling the ABS system will cause your car to fail an annual safety inspection in some states.
You will also then have the brake warning light on ALL the time, potentially failing to alert you if a brake issue arises.
As far as brake operations go, your brakes are most often operating without ABS.
ABS only operates when it senses that one wheel is turning at a different speed than the others

Auto Zone can probably retrieve the code with their scan tool.

The dealership put new shoes on and returned the car to you with the ABS light on OR did the ABS light come on a few days later?
Take it back and tell them to fix it for free, if it's the former.
Repairs are not supposed to create new problems---and when they do, it is the repairer's responsibility to determine what the cause is and how to fix it.
If the ABS light was off before and left the shop with the ABS light on, they may have broken a wire to an ABS sensor.
The dealer can very easily read the code that is causing the ABS light to stay on.
The TECH2 will list which wheel, if any, is causing the ABS code.

I'm sure the dealer did not remove your proportioning valves.
Those are attached in-line to the brake lines just before each rear wheel
https://www.rockauto.com/en/catalog/pon ... valve,1888

It is possible that a wheel bearing is going bad---causing the noise and the ABS light to come on.
Get the code read, check the wires and connector at the wheel sensor that the code indicates, if it's a wheel sensor code.
If the wires/connector look OK, replacing that wheel bearing should solve the troubles..


Top
 Profile  
 
PostPosted: Mon May 21, 2018 11:16 am 
Offline
Administrator
Administrator
User avatar

Joined: Mon May 19, 2008 7:01 pm
Posts: 16772
Location: Central Illinois
Year and Trim: 1992 SSE
2009 G8 GT
There are separate lights for ABS failures and other brake failures, such as low fluid. I've seen them both in action.

_________________
Image
WHITE WHINE - IT'S INTOXICATING. 1992 SSE Supercharged 236.26 ci (.040 Over)
15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Easy Performance Gen 3 Air/Fuel Calibrator, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers and 10" Subs, 1300 watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, McCoy Motorsports Ceramic Coated Ported Exhaust Manifolds, Fan Override, PowerSlot Slotted Rotors.
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim Trailblazer mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser


Top
 Profile  
 
PostPosted: Mon May 21, 2018 7:41 pm 
Offline
Posts like an L67
Posts like an L67

Joined: Thu May 01, 2014 9:37 pm
Posts: 1277
Year and Trim: 1993 SLE
1998 SE
2001 SSEI
2002 SSEI
J Wikoff wrote:
There are separate lights for ABS failures and other brake failures, such as low fluid. I've seen them both in action.


Yes, but I believe that disabling the ABS will trigger more than just the ABS light--as it does on the 2000 +up Bonnevilles.
"Service Stability System – TRAC OFF, ABS & BRAKE lights are on" taken from 2000-2005-other-than-gxp/topic25362.html
If I'm wrong, then I hope someone who knows for certain will chime in.


Top
 Profile  
 
PostPosted: Mon May 21, 2018 7:50 pm 
Offline
Administrator
Administrator
User avatar

Joined: Mon May 19, 2008 7:01 pm
Posts: 16772
Location: Central Illinois
Year and Trim: 1992 SSE
2009 G8 GT
It only triggers the abs light on 92s, I can tell you that much. We didn't have stability control to worry about.

_________________
Image
WHITE WHINE - IT'S INTOXICATING. 1992 SSE Supercharged 236.26 ci (.040 Over)
15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Easy Performance Gen 3 Air/Fuel Calibrator, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers and 10" Subs, 1300 watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, McCoy Motorsports Ceramic Coated Ported Exhaust Manifolds, Fan Override, PowerSlot Slotted Rotors.
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim Trailblazer mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser


Top
 Profile  
 
PostPosted: Tue May 22, 2018 11:09 am 
Offline
Posts like an L67
Posts like an L67

Joined: Sun Aug 22, 2010 11:11 pm
Posts: 1588
Location: Ontario, Canada
Year and Trim: 2000 Bonniville SSEi L67
J Wikoff wrote:
It only triggers the abs light on 92s, I can tell you that much. We didn't have stability control to worry about.



my 92 GTP had abs and traction control only.......

check to see if the wheel sensors are unplugged or damaged for abs light

_________________
poverty forces one to do unorthodox things

2000 SSEi
past rides:
1996 SSEi
1992 GTP
1987 Grand Am


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 21 posts ]  Go to page 1, 2  Next

All times are UTC - 5 hours [ DST ]


Related topics
 Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Rear Drum Brakes to Disc Brakes

Goodfellow

14

1783

Wed Jul 27, 2016 9:45 pm

MattStrike View the latest post

There are no new unread posts for this topic. 98 SE rear drum brakes

Djkthegame

0

671

Sat Oct 05, 2013 10:46 am

Djkthegame View the latest post

There are no new unread posts for this topic. Sticking Drum brakes

skregal

1

778

Thu Jan 24, 2013 7:53 pm

MattStrike View the latest post

There are no new unread posts for this topic. Drum Brakes Change On This Gen. Bonneville Difficult?

GotBonneBWitMe

14

1445

Mon Sep 23, 2013 9:30 pm

Tim's Buick View the latest post

There are no new unread posts for this topic. rear drum brake inspection plug

floor

8

1855

Sat Nov 29, 2008 2:38 am

Bugsi View the latest post

 


Who is online

Users browsing this forum: Google [Bot] and 4 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group


phpBB SEO