Soft/sinking brake pedal - Ford Powerstroke Diesel Forum
Wheels, Tires, and Brakes Here's where you can post all your topics and questions about wheels, tires and brakes.
Sponsored by Discount Tire

Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 09-13-2013, 08:11 PM
Member
 

Join Date: Jul 2009
Posts: 70
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Soft/sinking brake pedal

97 F350. NEW rear drums & shoes. front pads/rotors less than 8 months old. Bled the crap out of brakes and installed a new master cylinder. I still have a squishy pedal, which when pressed hard, sinks almost to the floor. When pedal goes down, the brakes still hold. I've seen one post where the member put the truck on a sever down angle, nose down and bled brakes. This angle caused the master cylinder to be level allowing the air to finally escape.

Anybody have this issue? I'm going to try to bleed them Monday after my weekend night shifts.....Tired of this situation.

Also - there is no way the vacuum booster can cause this issue? I know it can cause brakes to apply if the internal spring breaks, but I see no way it can cause this issue..
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 09-13-2013, 09:43 PM
Powerstroke.org Sponsor

 

Join Date: Apr 2010
Location: Defiance
Posts: 3,963
Thanks: 267
Thanked 69 Times in 67 Posts
Feedback Score: 1 reviews
I think you have a bad reman Master cylinder.

Booster wouldnt make any difference with your symptoms. Did you bench bleed the MC?
Sent from AutoGuide.com Free App
Reply With Quote Quick reply to this message
  #3  
Old 09-13-2013, 10:04 PM
RollinEarly05...now


 

Join Date: May 2008
Location: Klamath Falls
Posts: 3,292
Thanks: 26
Thanked 22 Times in 21 Posts
Feedback Score: 9 reviews
Might have bench bleed the master cylinder wrong... Or not at all.
Reply With Quote Quick reply to this message
  #4  
Old 09-14-2013, 02:59 PM
Member
 

Join Date: Jul 2009
Posts: 70
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Bench bleed mc real well. Symptoms are EXACTLY as they were with old mc as they are with NEW (not reman) mc. After doing more reading I'm leaning to the ABS sensor. It does it ONLY when running.
Thanks!
Reply With Quote Quick reply to this message
  #5  
Old 05-22-2014, 06:21 PM
Powerstroke.org Rookie
 

Join Date: Nov 2009
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Did you resolve the issue? I am having the same problem.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

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



All times are GMT -8. The time now is 11:55 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors