Auto-Bleed? I Keep Killing Master Cylinders - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 08-10-2008, 01:05 PM   #1
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Jul 2008
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
95SE is on a distinguished road
Default Auto-Bleed? I Keep Killing Master Cylinders

I have always simply done the RR, LR, RF, and LF brake bleed, only opening the bleeder with pressure on the pedal and have never had a problem but according to Auto Zone'* tech pages for the Bonneville, that is not the correct procedure for all Bonnes with ABS.

One brake system, the Delco Vi and Bosch V, calls for a pressure bleed while the ABS valves are being actuated via a scan tool.

From the Auto Zone Home Page, select 95 Bonneville, then vehicle repair guides, then brakes...lots of stuff on several different brake systems for the cars covered.

TIA
95SE is offline   Reply With Quote
Old 08-10-2008, 02:36 PM   #2
Administratus Emeritus
Certified Car Nut
 
GXP Venom's Avatar
 
Join Date: Jan 2006
Location: Purgatory, Pennsylvania
Posts: 16,538
Thanked 7 Times in 4 Posts
GXP Venom is on a distinguished road
Default

Not a brake expert. I like you have always done bleeding "old school" and didnt realize so much trouble and the use of a scanner was needed to do it properly.

Still I cant think of any reason the master cylinder should fail like this, regardless of the bleeding procedure used. I am apt to think the store you bought these from is sourcing substandard parts.

Sundays are slow here, but a couple moderators here know brakes well. I'm sure they will pipe in.
GXP Venom is offline   Reply With Quote
Old 08-12-2008, 03:54 PM   #3
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Jul 2008
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
95SE is on a distinguished road
Default

I was messing around and noticed some oil-like drops on the floor - I think it may just be a rusted brake line..now to find my flare kit...and bleed again.

Also a public apology for the copy writed info I posted in the other thread.

If I do find a rusted line that should be the smoking gun.
95SE is offline   Reply With Quote
Old 08-13-2008, 12:36 PM   #4
Administratus Emeritus
Certified Car Nut
 
GXP Venom's Avatar
 
Join Date: Jan 2006
Location: Purgatory, Pennsylvania
Posts: 16,538
Thanked 7 Times in 4 Posts
GXP Venom is on a distinguished road
Default

Dont give it a second thought, I have done the same in the past. As mentioned, commercial businesses are getting anal about it. So posting a link, then copy/pasting an entire procedure as well just isn't prudent.
GXP Venom is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
To bench bleed or not to bench bleed? SweetSeventy9 Chevrolet 6 06-06-2013 04:10 PM
ABS Brake "Auto Bleed" needed if brake system empt PaulDFixr 1992-1999 7 03-30-2007 04:28 PM
Brakes "Auto Bleed" procedure Vas62 1992-1999 6 12-23-2006 10:11 PM
3 master cylinders failed in 3 years - why? billha 1992-1999 3 10-06-2006 11:49 AM
Different Master Cylinders opensourceguy 1987-1991 23 06-01-2005 05:35 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 08:27 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.