Notices
1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
Sponsored by:
Sponsored by: Moser

Brakes won't bleed?

Thread Tools
 
Search this Thread
 
Old Oct 7, 2010 | 03:22 PM
  #1  
74f2502wd's Avatar
74f2502wd
Thread Starter
|
Junior User
Joined: Apr 2010
Posts: 70
Likes: 0
From: Sacramento
Brakes won't bleed?

Ok so i lost my brakes driving home yesterday so i just tried to bleed my brakes because the front (smaller) reservoir was empty of all fluid. I bled the passenger side rear first, then the drivers side rear. Then i moved to the front and neither side would produce any fluid. What am i doing wrong. Its a 74 f250 camper special ranger xlt with a 460 c6 and it has power front disc brakes. All stock. Any help is super appreciated seeing as this is my daily driver and i need brakes haha.
 
Reply
Old Oct 7, 2010 | 03:32 PM
  #2  
doug70's Avatar
doug70
Senior User
Joined: Feb 2010
Posts: 305
Likes: 1
prop valve

once you let one reservoir go empty, the prop valve closes that side. Push the pin back in on the valve and repeat what you have done. You should get fluid.

Doug
 
Reply
Old Oct 7, 2010 | 03:41 PM
  #3  
74f2502wd's Avatar
74f2502wd
Thread Starter
|
Junior User
Joined: Apr 2010
Posts: 70
Likes: 0
From: Sacramento
Thanks for the reply. Sorry which pin are you referring to? The threaded stud? If so it is already threaded all the way down.
 
Reply
Old Oct 7, 2010 | 03:50 PM
  #4  
doug70's Avatar
doug70
Senior User
Joined: Feb 2010
Posts: 305
Likes: 1
pin

On your proportioning valve mounted on the frame below the drivers seat. It will have a pin that sticks out from one end. That has to be reset.

Doug
 
Reply
Old Oct 7, 2010 | 04:13 PM
  #5  
jim collins's Avatar
jim collins
Cargo Master
Joined: Apr 2009
Posts: 3,038
Likes: 4
From: South west Idaho
Club FTE Silver Member

Originally Posted by doug70
On your proportioning valve mounted on the frame below the drivers seat. It will have a pin that sticks out from one end. That has to be reset.

Doug
Good information, I allways have trouble with that little job. I never had anybody tell me about how to reset it. Brake shops just say " we can fix it" .
 
Reply
Old Oct 7, 2010 | 05:02 PM
  #6  
bkaul's Avatar
bkaul
Posting Guru
Joined: Aug 2010
Posts: 1,761
Likes: 8
From: Knoxville, TN
If he was able to bleed the rear, that's not likely the problem, since the smaller front reservoir is for the rear brakes, and the valve would be moved to give all the fluid to the front already.

I'm going over the brakes on my '74, and I found that my front bleed screws were plugged up - had to remove them and clean out the holes with a dentist-style pick. (Could just replace 'em, but I didn't need to.)
 
Reply
Old Nov 16, 2010 | 08:58 PM
  #7  
74f2502wd's Avatar
74f2502wd
Thread Starter
|
Junior User
Joined: Apr 2010
Posts: 70
Likes: 0
From: Sacramento
Ok so after a few weeks still no brakes. I made a video to help try and describe the problem in better detail. Hopefully this will help you guys to help me haha.




<embed src="http://www.youtube.com/v/06uRlg-MQ2U?fs=1&hl=en_US" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385">
 
Reply
Old Nov 16, 2010 | 09:44 PM
  #8  
Bullitt390's Avatar
Bullitt390
Certified Thread Hijacker
20 Year Member
Photogenic
Liked
Joined: Aug 2001
Posts: 14,441
Likes: 60
Club FTE Silver Member

Sounds like the front calipers could possibly be mounted on the wrong side and upside down.

Josh
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-1

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-2

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-3

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-4

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
story-5

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-6

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-7

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-8

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-9

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
Old Nov 16, 2010 | 09:45 PM
  #9  
fmc400's Avatar
fmc400
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
Club FTE Gold Member
Originally Posted by doug70
once you let one reservoir go empty, the prop valve closes that side. Push the pin back in on the valve and repeat what you have done.
This is not true. The pin is to bypass the metering portion of the valve when bleeding the front brakes. It does not re-center the valve. The centering mechanism is part of the differential valve and is isolated from the metering valve. The two have nothing to do with each other.

To the OP: if the master cylinder ever takes in air (which can happen if you lose all the fluid), you may need to bench bleed it again. Are you positive that the master cylinder is actually delivering fluid? It's possible that the master cylinder is bad, and won't deliver fluid - or it's full of air, and can't push any fluid out. Either one of those would describe the pedal travel you've shown. If the front reservoir is puking fluid all over, it could be a sign of a defective master cylinder, or air in the lines. Master cylinders can come bad out of the box, even new ones. Remanufactured ones especially.

I second Josh's note about the calipers; I've seen another person have that same issue on here once before.
 
Reply
Old Nov 17, 2010 | 12:49 AM
  #10  
74f2502wd's Avatar
74f2502wd
Thread Starter
|
Junior User
Joined: Apr 2010
Posts: 70
Likes: 0
From: Sacramento
Thanks for the replies. Tomorrow i will do the following:

Check the calipers to make sure they are correct.
Take off the MC and return it ( i got a LTW)
Bench bleed it and re install it.
Bleed all 4 corners again.

If this does not fix the problem i don't know what else to do. Thanks a lot for the help. I'll keep ya'll posted.
 
Reply
Old Nov 17, 2010 | 01:05 PM
  #11  
cj06's Avatar
cj06
Posting Guru
Joined: Feb 2010
Posts: 2,006
Likes: 2
From: CASA GRANDE AZ
if the reservoir was dry where did the fluid go ? did you look for any signs of leaks ?
you may have to replace the master cylinder
 
Reply
Old Nov 17, 2010 | 07:59 PM
  #12  
Bullitt390's Avatar
Bullitt390
Certified Thread Hijacker
20 Year Member
Photogenic
Liked
Joined: Aug 2001
Posts: 14,441
Likes: 60
Club FTE Silver Member

Also check the vacuum line for any moisture...

Josh
 
Reply
Old Nov 18, 2010 | 04:51 AM
  #13  
seventysevenF150's Avatar
seventysevenF150
Senior User
Joined: Oct 2010
Posts: 173
Likes: 0
From: British Columbia, Canada
Originally Posted by bkaul
If he was able to bleed the rear, that's not likely the problem, since the smaller front reservoir is for the rear brakes, and the valve would be moved to give all the fluid to the front already.
The smaller reservior is the rear brakes, not the front. My 77 F150 had rear brake issues when I bought it. Inside the frame rail the dirt was so heavy that it had made a pin hole in the rear brake line. So small that u couln't see it until I climbed under and inspected the line front to back and found this pinhole that made a fine stream that was evident after cleaning this area to see the stream. Replaced the rear brakeline from the prop. valve ,back.
 
Reply
Old Nov 19, 2010 | 10:46 PM
  #14  
bkaul's Avatar
bkaul
Posting Guru
Joined: Aug 2010
Posts: 1,761
Likes: 8
From: Knoxville, TN
Originally Posted by seventysevenF150
The smaller reservior is the rear brakes, not the front.
Yeah, that's what I was trying to say: the smaller reservoir, which on the master cylinder is towards the front of the truck, is for the rear brakes. Thanks for clarifying.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
regidog
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
28
Nov 18, 2020 05:26 PM
1oldlongbed
1973 - 1979 F-100 & Larger F-Series Trucks
7
Jun 14, 2017 08:57 PM
Tylus
1987 - 1996 F150 & Larger F-Series Trucks
4
Sep 3, 2016 11:16 AM
cjben
1987 - 1996 F150 & Larger F-Series Trucks
5
Oct 20, 2015 01:55 PM
szilagyic
1973 - 1979 F-100 & Larger F-Series Trucks
20
Jun 10, 2010 08:24 AM




All times are GMT -5. The time now is 10:18 PM.

story-0
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-1
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-2
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-3
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-4
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-5
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-6
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-7
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-8
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-9
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE