full brake fluid flush / replacement with VDC - Subaru Outback - Subaru Outback Forums
 
LinkBack Thread Tools Rate Thread
post #1 of 9 (permalink) Old 11-19-2009, 06:12 PM Thread Starter
Registered User
 
driveby's Avatar
 
Join Date: Oct 2009
Location: sunny california
Car: 2001 OBW H6 VDC
Posts: 828
Feedback Score: 0 reviews
full brake fluid flush / replacement with VDC

It's time to flush the brake fluid on my 2001 OBW VDC...

...and I'm a detail-oriented kinda guy........so I want to flush ALL the brake fluid from the system, including the old stuff in the VDC unit valves & chambers & reservoirs...

So I need to ask the brake gurus in this forum:

1) Should I run the VDC sequence control (pressure increase) or the ABS sequence control (pressure decrease) or both?

2) How long / how many cycles should I run the sequence control?

3) When should I run sequence control? After a partial bleed? During bleeding? After a full flush?

I'm leaning towards partial flush + VDC sequence control + full flush, but I'm not sure. Are there any expert Suby mechanics here who could dispense their wisdom?

Thanks very much in advance...

-Jeff
driveby is offline  
Sponsored Links
Advertisement
 
post #2 of 9 (permalink) Old 11-19-2009, 06:52 PM
Super Moderator
 
Join Date: Jan 2007
Location: Oceanside, NY
Car: 2005 OBW 2.5L, 1989 Subaru Justy, RIP Blu
Posts: 7,346
Feedback Score: 0 reviews
Send a message via AIM to nipper
www.endwrench.com in the archives covers brake flush/bleeding procedure.


nipper
nipper is offline  
post #3 of 9 (permalink) Old 11-19-2009, 06:56 PM Thread Starter
Registered User
 
driveby's Avatar
 
Join Date: Oct 2009
Location: sunny california
Car: 2001 OBW H6 VDC
Posts: 828
Feedback Score: 0 reviews
Quote:
Originally posted by nipper
www.endwrench.com in the archives covers brake flush/bleeding procedure.
I've read the endwrench articles already. They cover some of the stuff from the service manual, but they don't answer these questions. Unless I missed something...

-Jeff
driveby is offline  
post #4 of 9 (permalink) Old 11-19-2009, 07:02 PM
Super Moderator
 
Join Date: Jan 2007
Location: Oceanside, NY
Car: 2005 OBW 2.5L, 1989 Subaru Justy, RIP Blu
Posts: 7,346
Feedback Score: 0 reviews
Send a message via AIM to nipper
http://endwrench.com/images/pdfs/BrakeFluidSumm02.pdf

Is it just me. or does that contradict itself in spots?


nipper
nipper is offline  
post #5 of 9 (permalink) Old 11-19-2009, 07:09 PM Thread Starter
Registered User
 
driveby's Avatar
 
Join Date: Oct 2009
Location: sunny california
Car: 2001 OBW H6 VDC
Posts: 828
Feedback Score: 0 reviews
To clarify...

1) The Winter 2001 "Brake System Flushing & Bleeding" article mentions a detailed procedure for TCS systems, which I think (??) predate my VDC system??

2) The Summer 2002 "Brake Fluid Change" article mentions ABS sequence control to test the ABS unit (with a pressure gauge) after you have changed the fluid.

...but neither of them talks about how to flush the ABS or VDC control unit valves/chambers/reservoir.

I also took a look at Subaru's training module for brake systems. No luck.

Is there another article that I should read? Or, should I just forget about this and let the VDC unit stew in its old juices?

Thanks for your help!

-Jeff
driveby is offline  
post #6 of 9 (permalink) Old 11-19-2009, 07:15 PM
Super Moderator
 
Join Date: Jan 2007
Location: Oceanside, NY
Car: 2005 OBW 2.5L, 1989 Subaru Justy, RIP Blu
Posts: 7,346
Feedback Score: 0 reviews
Send a message via AIM to nipper
I'm getting attacked by flying pigs, so i will let someone else answer. I would just do a normal bleed/flush starting at the closest wheel first.


someone send chicken soup.

**** pigs with wings.




nipper
nipper is offline  
post #7 of 9 (permalink) Old 11-19-2009, 07:39 PM Thread Starter
Registered User
 
driveby's Avatar
 
Join Date: Oct 2009
Location: sunny california
Car: 2001 OBW H6 VDC
Posts: 828
Feedback Score: 0 reviews
Hehe...I hear ya. Still dreaming of a world without flying pigs.

It all changes so sloooowly. Maybe in 2 or 3 more generations. I hope we live to see it.

-Jeff
driveby is offline  
post #8 of 9 (permalink) Old 11-19-2009, 07:59 PM
Super Moderator
 
Join Date: Jan 2007
Location: Oceanside, NY
Car: 2005 OBW 2.5L, 1989 Subaru Justy, RIP Blu
Posts: 7,346
Feedback Score: 0 reviews
Send a message via AIM to nipper
Quote:
Originally posted by driveby
Hehe...I hear ya. Still dreaming of a world without flying pigs.

It all changes so sloooowly. Maybe in 2 or 3 more generations. I hope we live to see it.

-Jeff
i wonder what is next *cough cough* the buffalo flu, or did we de-wing all of them.


(apologies if i sounded irked before, i really feel like biomass)
nipper is offline  
post #9 of 9 (permalink) Old 11-21-2009, 10:57 AM Thread Starter
Registered User
 
driveby's Avatar
 
Join Date: Oct 2009
Location: sunny california
Car: 2001 OBW H6 VDC
Posts: 828
Feedback Score: 0 reviews
bump!

Has anyone out there done a full ABS/VDC flush like this?

No buffalo, please.

-Jeff
driveby is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Subaru Outback - Subaru Outback Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Random Question

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Rate This Thread
Rate This Thread:



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome