Braking issue on a 99' - Ford Powerstroke Diesel Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 3 Old 10-25-2012, 07:08 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Feb 2012
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Braking issue on a 99'

I have a "99" super duty 250 quad cab with 340K on it. Recently while driving it around my brakes locked on after lightly using my brakes. They didnt lock up but they were on and the brake pedal was solid when touched. Could barely pull it onto a trailer under it's own power. Forward and reverse was the same. It sat for a day and all brakes released and hasnt locked up again. I took off all the wheels and checked the rotors for discoloring due to heat from a bad caliper but all were looking about the same. Now I'm thinking possibly a bad master cylinder. It has a hydraulic boost off of the power steering pump. Any ideas? Much appreciated.
shadmcd is offline  
Sponsored Links
Advertisement
 
post #2 of 3 Old 10-25-2012, 10:33 PM
Compression Ignition Addict
 
LakiPolitis's Avatar
 
Join Date: Dec 2011
Posts: 248
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Check your slider pins, too. They get rusted up and they stick. I don't think it will cause the complete problem you're having. I think you're on the right path, I'd check the master cylinder, fluids, etc.
LakiPolitis is offline  
post #3 of 3 Old 03-26-2013, 01:54 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Feb 2012
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Found a leaky hydrobooster and replaced it. Thought that cured the problem but once again when I drove continuous for more than about 25-30 miles it locked up on me again, this time without applying the brakes at all. I'm at a loss here. Starting to think maybe faulty calipers? Maybe a soft line collapsing? Read about the ABS control unit and module, could that be the problem. Without a direction to go this could get spendy and time consuming to start replacing parts......
shadmcd is offline  
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:
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









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
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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