Notices
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

vacuum improvement

Thread Tools
 
Search this Thread
 
Old Nov 19, 2011 | 09:28 PM
  #16  
86f2504x2's Avatar
86f2504x2
Thread Starter
|
New User
Joined: Jul 2011
Posts: 16
Likes: 0
Also I changed 1 of the e-brake cables but did not hook it up to the pedal cable yet. Could the spring at the end of the new cable in the drum be stopping me from bleeding that side fully because its putting pressure on the shoes away from the drum?
 
Reply
Old Nov 19, 2011 | 09:32 PM
  #17  
Gary Lewis's Avatar
Gary Lewis
FTE Legend
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Originally Posted by 86f2504x2
Should the truck be on the bleed them.
Say what? I understood well until that. Please explain.

You did the bleeding in the right order. However, I've had many instances where it took several rounds to get all the air out.

Ahhh, I've re-re-re-read. You mean "should the truck be on to bleed them?". It isn't necessary. All the vacuum does is to multiply your leg muscles. But, you do need someone to bleed while you pump or vice versa. Or, use a bleeder like a Mityvac, but I have one and don't like using it.
 
Reply
Old Nov 19, 2011 | 09:36 PM
  #18  
Gary Lewis's Avatar
Gary Lewis
FTE Legend
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Don't think the e-brake will cause a problem like that as my cables are slack unless the e-brake is on and I was able to bleed it nicely.
 
Reply
Old Nov 19, 2011 | 09:40 PM
  #19  
86f2504x2's Avatar
86f2504x2
Thread Starter
|
New User
Joined: Jul 2011
Posts: 16
Likes: 0
Well wtf. Don't know what else it could be. Why pressure when its off but not when its on
 
Reply
Old Nov 19, 2011 | 09:47 PM
  #20  
ctubutis's Avatar
ctubutis
Moderator
15 Year Member
Liked
Loved
Community Favorite
Joined: Nov 2007
Posts: 22,415
Likes: 92
From: Denver Metro Area, CO
Club FTE Gold Member
My suspicion is a problem with the brake booster.

Disconnect & plug the vacuum line to the booster, start it up and see how things behave.
 
Reply
Old Nov 19, 2011 | 09:48 PM
  #21  
Gary Lewis's Avatar
Gary Lewis
FTE Legend
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Originally Posted by 86f2504x2
Why pressure when its off but not when its on
Are you saying you have good pedal when the engine is off, but not when it is running? That the pedal is up and very firm when off but goes to the floor when running?

If so, maybe we need to back up a step. Did you say that "the light is on"? IIRC, the light is telling you that one side of the master cylinder has more pressure than the other, which should mean that either one side of you master cylinder isn't working properly or that you still have a lot of air in that side and it is compressing and not bringing the pressure up.

So, tell me about the light.
 
Reply
Old Nov 19, 2011 | 09:55 PM
  #22  
86f2504x2's Avatar
86f2504x2
Thread Starter
|
New User
Joined: Jul 2011
Posts: 16
Likes: 0
Its just a brake light but I'll bleed them again tomorrow. Thanks for the help. I'll post again after that.
 
Reply
Old Nov 19, 2011 | 09:59 PM
  #23  
Gary Lewis's Avatar
Gary Lewis
FTE Legend
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Oh, brake light. My bad. Ok, tomorrow.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

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

 Joe Kucinski
story-1

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

 Brett Foote
story-2

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-3

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

 Brett Foote
story-4

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

 Michael S. Palmer
story-5

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

 Verdad Gallardo
story-6

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-7

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-8

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-9

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
Old Nov 20, 2011 | 07:42 AM
  #24  
Franklin2's Avatar
Franklin2
Moderator
25 Year Member
Photogenic
Community Builder
Community Influencer
Joined: Jan 2001
Posts: 56,980
Likes: 2,735
From: Virginia
Club FTE Gold Member
Did you adjust the shoes? If you just stuck them on there, that could be your low pedal. You need to manually adjust them out while turning the tire till you can't turn it anymore, and then back them off till it turns with a little bit of rubbing. This is only for the rear, the front discs adjust themselves.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jeffreyclay
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
4
Jul 3, 2019 07:00 PM
bsraborn
1973 - 1979 F-100 & Larger F-Series Trucks
39
Jun 21, 2017 01:30 PM
yankeerebel
1973 - 1979 F-100 & Larger F-Series Trucks
8
Nov 10, 2009 06:56 PM
geodiggr
1987 - 1996 F150 & Larger F-Series Trucks
2
Aug 13, 2009 04:06 PM
northerndave
1967 - 1972 F-100 & Larger F-Series Trucks
4
Feb 22, 2008 11:35 PM




All times are GMT -5. The time now is 09:13 AM.

story-0
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-1
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-2
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

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


VIEW MORE
story-3
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-4
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-5
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-6
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
story-7
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-8
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-9
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE