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Pontiac Bonneville Brakes

10 messages,  Last post on Oct 30, 2007 at 6:07 PM

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#1 of 10 grinding brakes by donnell_thomas Jan 31, 2007 (8:50 am)
I am the owner of a pontiac bonniville, it has been a great car even though it is very old ('89 ) a few months ago the brakes started to grind badly. but the funny thing is, is that there was no sqeeking of any kind before the grinding. I'm very concerned because it makes me wonder how well the previous owners took care of the car, or how well the brake shop fixed the brakes the first time. depending on the temp. of the day sometimes they don't grind at all, but then sometimes they are super loud. I need to know if it is too late to just get the brakes fixed or if it is going to be a costly repair.   frusterated and very concerned car owner. Replies to this message: imidazol97 (Feb 15, 2007 7:12 pm) kell3039 (May 08, 2007 4:25 pm)
#2 of 10 1958 pontiac chieftain 2 dr sedan by jojo3587 Feb 15, 2007 (4:39 pm)
I have a 1958 pontiac with tri power and t has 330 horses. It has 55000 actual on it. I have restored all but the brakes, and i want to know what kind of disc brakes i can use to modify it. I have 14 inch wheels. I have been told by some that i would have to put 15 inch wheels on it, but i would hate to do that. Is the 1958 chevrolet spindal and brake linings the same also. It would be a blessing if they were.
#3 of 10 Re: grinding brakes [donnell_thomas] by imidazol97 Feb 15, 2007 (7:12 pm)
Replying to: donnell_thomas (Jan 31, 2007 8:50 am) If it's the front brakes which are disk brakes that might be a problem. You didn't mention the mileage.   If it's the rear drums and they're not grinding all the time with medium brake application, it may just be dust. I've had sounds from my rears on 98 LeSabre and I found it was just dust. It seemed worse when first starting out slowing and especially backing. And it was noisier when there was more humidity like dew or raining or high nightime humidity.
#4 of 10 Re: grinding brakes [donnell_thomas] by kell3039 May 08, 2007 (4:25 pm)
Replying to: donnell_thomas (Jan 31, 2007 8:50 am) glad to know i am not the only one who has experienced the grinding noise never did it till i replaced the entire hub assembly and put a good set of pads on it u r experiencing a hard pad clamping down on a very smooth rotor as they get over time i recently had the rotors turned just a little and the noise went away thy that first..........
#5 of 10 Brakes on 2001 Bonnie by bjessen Jun 30, 2007 (4:35 pm)
I have a 2001 Bonneville. First time have ever own one. It is a great car. We need to replace the back disc brakes. My husband has never worked on one before only chevys and buicks. How do you get the brake pads off? Someone said you need a special tool to do it? does anyone know what that is and how to? sure could use some help. thanks
#6 of 10 93 Bonneville spongy brake pedal by myer1 Jul 10, 2007 (6:41 pm)
The orignal master cylinder started leaking in the brake booster. Replaced the master cyl and flushed brake hydraulics. After a few days of driving the brake pedal would slowly go to floor. Replaced master cyl again and bled again and again using vacuumn, brake pedal with engine running and not running nothing worked, still same problem. I feel the master cyl is bypassing internaly but not sure. Anyone else have this problem? The car only has 40,000 miles and no rust or leaks at calipers or wheel cylinders. Replies to this message: myer1 (Aug 01, 2007 10:45 am) imidazol97 (Aug 01, 2007 12:31 pm)
#7 of 10 Re: 93 Bonneville spongy brake pedal [myer1] by myer1 Aug 01, 2007 (10:45 am)
Replying to: myer1 (Jul 10, 2007 6:41 pm) The problem was finally cured after many postings and phone calls to dealers. The car was taken to a gravel parking lot and made a couple of panic stops to engage the ABS. End result is that the Bonneville now has a full brake pedal with no fading of the pedal. The ABS must have gotten an obstruction on the first master cylinder change. Replies to this message: imidazol97 (Aug 01, 2007 12:31 pm)
#8 of 10 Re: 93 Bonneville spongy brake pedal [myer1] by imidazol97 Aug 01, 2007 (12:31 pm)
Replying to: myer1 (Aug 01, 2007 10:45 am) Thanks to you for coming back and telling us what you found. You probably have helped someone who will remember this post or find it by searching for spongy brake in the future.   I would have thought the ABS check the system does where it cycles the brakes at each start up of the motor would have burped the air out!
#10 of 10 Brakes on 03 Bonneville by afbryant Oct 30, 2007 (6:07 pm)
I have a 2003 and I am thinking of putting on brakes myself.,front and rear.. Have any of you done this yourself? Any special tools needed? Any info would be appreciated I do have general knowledge of putting on brakes but on up to a 1990 model that I owned.

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