No Power Brakes - Ford Powerstroke Diesel Forum

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 11 Old 05-28-2010, 12:29 PM Thread Starter
Member
 
mcdizzle's Avatar
 
Join Date: Jan 2010
Posts: 77
Thanks: 1
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
No Power Brakes

Well last weekend I replace the rear brakes calipers, pad and rotors bled it and drove it all week long about 300 miles with no issues. Then last night I jumped in the truck and started it and took off and hit the pedal and nothing pedal went to the floor before I got very little pedal to stop. So I released the pedal and hit it again it was fine then repeated the process nothing hit it again fine, so I parked it. Came home from work today drove it around the block nothing at all this time....... I looked under the truck no leaks of brake fluid, checked the fluid level it was full so what going on? Is it my vacuum pump?
mcdizzle is offline  
post #2 of 11 Old 05-28-2010, 12:43 PM
Compression Ignition Addict
 
symbols's Avatar
 
Join Date: Oct 2007
Location: Pasadena, TX
Posts: 6,505
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Feedback Score: 0 reviews
Your brakes are hydraulic assist not vacuum. If the pedal went to the floor then it's either a leak, air in the system, or a bad master cylinder. Since you say you have fluid and no leaks I am going to say master cylinder. If it was a hydraulic problem the pedal would be real hard.

Jason

"Using a thug's murderous rampage to call for gun control is like using Barack's reckless spending to call for higher taxes."

--Michael Berry, American philosophizer & Talk Radio Czar, 1970-?
symbols is offline  
post #3 of 11 Old 05-28-2010, 12:55 PM Thread Starter
Member
 
mcdizzle's Avatar
 
Join Date: Jan 2010
Posts: 77
Thanks: 1
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Could it be my Hydroboost? or would i loose power steering also if that were the case?

2000 F-350 XLT 7.3L
200K miles
4" MBRP Turboback Exhaust
MBRP Muffler Delete Pipe
Airaid CAD intake
Edge Evolution Programmer
4.5" Icon Lift
285/75/16 Toyo Open Country AT
mcdizzle is offline  
post #4 of 11 Old 05-28-2010, 01:01 PM
Compression Ignition Addict
 
symbols's Avatar
 
Join Date: Oct 2007
Location: Pasadena, TX
Posts: 6,505
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Feedback Score: 0 reviews
If your power steering wasn't working which supplies the hydraulic power then you wouldn't have steering and your pedal would be hard. If just your hydroboost was bad just your pedal would be hard.

A brake pedal going to the floor means 1 or more of the following things. You have a leak and/or low on fluid, you have air in the system, or you have a bad master cylinder.

Jason

"Using a thug's murderous rampage to call for gun control is like using Barack's reckless spending to call for higher taxes."

--Michael Berry, American philosophizer & Talk Radio Czar, 1970-?
symbols is offline  
post #5 of 11 Old 05-28-2010, 01:04 PM Thread Starter
Member
 
mcdizzle's Avatar
 
Join Date: Jan 2010
Posts: 77
Thanks: 1
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Thanks symbols

2000 F-350 XLT 7.3L
200K miles
4" MBRP Turboback Exhaust
MBRP Muffler Delete Pipe
Airaid CAD intake
Edge Evolution Programmer
4.5" Icon Lift
285/75/16 Toyo Open Country AT
mcdizzle is offline  
post #6 of 11 Old 06-01-2010, 05:59 AM
Compression Ignition Addict
 
symbols's Avatar
 
Join Date: Oct 2007
Location: Pasadena, TX
Posts: 6,505
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Feedback Score: 0 reviews
No problem. Let us know how it turns out

Jason

"Using a thug's murderous rampage to call for gun control is like using Barack's reckless spending to call for higher taxes."

--Michael Berry, American philosophizer & Talk Radio Czar, 1970-?
symbols is offline  
post #7 of 11 Old 06-01-2010, 06:02 PM Thread Starter
Member
 
mcdizzle's Avatar
 
Join Date: Jan 2010
Posts: 77
Thanks: 1
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Well came home from this weekend and figured id try and bleed the brakes...... that wasn't gonna happen. Upon further review I found the hose from the power steering pump to the hydroboost to have a hole worn in it from the shock tower. So what is happening that is causing me to have no brakes? What fluid runs through it? Symbols was right about a leak being one of the three thing that could be wrong. Since I didnt loose brake fluid is it power steering in that line?

2000 F-350 XLT 7.3L
200K miles
4" MBRP Turboback Exhaust
MBRP Muffler Delete Pipe
Airaid CAD intake
Edge Evolution Programmer
4.5" Icon Lift
285/75/16 Toyo Open Country AT
mcdizzle is offline  
post #8 of 11 Old 06-01-2010, 06:39 PM Thread Starter
Member
 
mcdizzle's Avatar
 
Join Date: Jan 2010
Posts: 77
Thanks: 1
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
im still wondering why i have power steering and no brakes if its a power steering line....... wouldnt i loose both?

2000 F-350 XLT 7.3L
200K miles
4" MBRP Turboback Exhaust
MBRP Muffler Delete Pipe
Airaid CAD intake
Edge Evolution Programmer
4.5" Icon Lift
285/75/16 Toyo Open Country AT
mcdizzle is offline  
post #9 of 11 Old 06-02-2010, 11:07 AM
Compression Ignition Addict
 
symbols's Avatar
 
Join Date: Oct 2007
Location: Pasadena, TX
Posts: 6,505
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Feedback Score: 0 reviews
I don't see how you have power steering. I would think the pump would drain itself pretty quick with a hole in the line unless it's tiny.

Jason

"Using a thug's murderous rampage to call for gun control is like using Barack's reckless spending to call for higher taxes."

--Michael Berry, American philosophizer & Talk Radio Czar, 1970-?
symbols is offline  
post #10 of 11 Old 06-02-2010, 12:48 PM Thread Starter
Member
 
mcdizzle's Avatar
 
Join Date: Jan 2010
Posts: 77
Thanks: 1
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
could the hydroboost lock itself if air got in it?

2000 F-350 XLT 7.3L
200K miles
4" MBRP Turboback Exhaust
MBRP Muffler Delete Pipe
Airaid CAD intake
Edge Evolution Programmer
4.5" Icon Lift
285/75/16 Toyo Open Country AT
mcdizzle is offline  
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