Notices
1994.5 - 1997 7.3L Power Stroke Diesel  

bad brake booster?

Thread Tools
 
Search this Thread
 
Old Dec 16, 2008 | 08:00 PM
  #1  
2 stroke man's Avatar
2 stroke man
Thread Starter
|
Postmaster
Joined: Nov 2006
Posts: 2,609
Likes: 0
From: somerset KY
bad brake booster?

for sometime now, my brakes have been really mushy. the pedal will go all the way to the floor, and in the past year i've done 2 new brake jobs on the front, one new one on the back, and adjusted the back. about a month ago my brake job included new borg-warner pads and rotors. sometimes the brakes are really hard, like you hit them, nothing, and you hit them again and it goes real far down, but stops the truck, and it got better for a while after the new brake job up front and rear adjustment, but is mushy again. so, what can it be? bad brake booster?
 
Reply
Old Dec 16, 2008 | 08:09 PM
  #2  
tjbeggs's Avatar
tjbeggs
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
Club FTE Silver Member

Double check the adjustment on the rear. Could also be air in the system as well as a bad RABS valve, master cylinder or booster. Lots of possibilities
 
Reply
Old Dec 16, 2008 | 08:11 PM
  #3  
2 stroke man's Avatar
2 stroke man
Thread Starter
|
Postmaster
Joined: Nov 2006
Posts: 2,609
Likes: 0
From: somerset KY
darn, i was afriad lots of possibilities

the adjustment is good, i just dont know where to go now
 
Reply
Old Dec 16, 2008 | 08:11 PM
  #4  
2 stroke man's Avatar
2 stroke man
Thread Starter
|
Postmaster
Joined: Nov 2006
Posts: 2,609
Likes: 0
From: somerset KY
and would it be possible to put a brake lock on thhis truck like my dump truck's hydraulic locker?
 
Reply
Old Dec 16, 2008 | 08:15 PM
  #5  
IDMooseMan's Avatar
IDMooseMan
Cargo Master
15 Year Member
Liked
Loved
Community Favorite
Joined: Jul 2006
Posts: 2,756
Likes: 38
From: Nampa, ID
After my accident, the mechanics found that my front brake hoses were deteriorating from the inside out. There was no visual indication that the hoses were going bad. I often wonder, if the brake hoses were good prior to the accident, would I have gotten into the accident in the first place?

The only symptoms I was having were exactly as you describe. Pedal would go to the floor ("soft pedal" feel) no matter how much the brakes were adjusted.

The "hard pedal" feel was due to my vacuum pump going out. When it went out, it the power booster with it.

IMHO, you have TWO issues that need to be addressed quickly.
 
Reply
Old Dec 16, 2008 | 08:33 PM
  #6  
2 stroke man's Avatar
2 stroke man
Thread Starter
|
Postmaster
Joined: Nov 2006
Posts: 2,609
Likes: 0
From: somerset KY
ok, what do i need to do?
 
Reply
Old Dec 16, 2008 | 08:41 PM
  #7  
putz54143's Avatar
putz54143
Senior User
Joined: Sep 2008
Posts: 217
Likes: 0
From: marinette wi
do you have the micro brake lock on the dump? as parking brake?
 
Reply
Old Dec 16, 2008 | 08:46 PM
  #8  
madpogue's Avatar
madpogue
Lead Driver
20 Year Member
Liked
Joined: Oct 2003
Posts: 8,476
Likes: 37
From: Madison, WI
Does pumping the brake pedal increase the resistance / pedal feel?
 
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 Dec 16, 2008 | 08:49 PM
  #9  
2 stroke man's Avatar
2 stroke man
Thread Starter
|
Postmaster
Joined: Nov 2006
Posts: 2,609
Likes: 0
From: somerset KY
the dump has a **** on the dash and you pull it and ur foots on the brake pedal, u can pull the pedal push back up, and it gets real firm. i wonder what it would take to put a locker like that on it?
 
Reply
Old Dec 16, 2008 | 08:50 PM
  #10  
spazinweasel's Avatar
spazinweasel
Senior User
15 Year Member
Joined: Apr 2007
Posts: 254
Likes: 0
From: elizabeth,co
i would start with bleeding the entire system then if no improvement master cylender then break lines
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
SuperDuty93
1973 - 1979 F-100 & Larger F-Series Trucks
15
Dec 26, 2012 05:47 PM
blloyd
Explorer, Sport Trac, Mountaineer & Aviator
3
Jan 16, 2011 03:12 PM
Q in Sac
1987 - 1996 F150 & Larger F-Series Trucks
19
Aug 22, 2009 09:19 PM
broncobilly66
2004 - 2008 F150
10
Aug 22, 2009 04:53 PM
mikenusaf
Brakes, Steering, Suspension, Tires, & Wheels
3
Apr 9, 2005 10:10 AM




All times are GMT -5. The time now is 06:42 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