Notices
1999 - 2016 Super Duty 1999 to 2016 Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines
Sponsored by:
Sponsored by: Real Truck

I've got Brake Problem.

Thread Tools
 
Search this Thread
 
Old Jan 2, 2012 | 10:04 AM
  #1  
Curt Bates's Avatar
Curt Bates
Thread Starter
|
Freshman User
Joined: Dec 2008
Posts: 26
Likes: 0
I've got Brake Problem.

I have a 97 250 4x4 diesel, I believe the problem is the brake power booster, but wanted to get some feed back from fellow members to see if any one else has run across this before.
When I apply the brakes pedal it's soft and goes to the floor with some brake stoppage then if you immediatly hit the pedal again as if pumping the pedal it's hard only goes down an inch and there is no brakes at all,
also you can hear an air noise when you hit the pedal.
Any input is appreciated and thanks in advance for any responses.
 
Reply
Old Jan 2, 2012 | 10:11 AM
  #2  
PA-Mark's Avatar
PA-Mark
Posting Guru
Joined: Sep 2011
Posts: 1,076
Likes: 0
From: Mt. Holly Springs, PA
Club FTE Silver Member

Originally Posted by Curt Bates
I have a 97 250 4x4 diesel, I believe the problem is the brake power booster, but wanted to get some feed back from fellow members to see if any one else has run across this before.
When I apply the brakes pedal it's soft and goes to the floor with some brake stoppage then if you immediatly hit the pedal again as if pumping the pedal it's hard only goes down an inch and there is no brakes at all,
also you can hear an air noise when you hit the pedal.
Any input is appreciated and thanks in advance for any responses.
with it running in park, put your head under the dash on the drivers side, hit the brake pedel with your hand, if you get a hisssss with the operation of this pedal. i do believe this is a classic booster problem. what your hearing is a ripped diaphram leaking vacuum
Hope this helps
 
Reply
Old Feb 3, 2012 | 08:55 PM
  #3  
mechanicmom's Avatar
mechanicmom
New User
Joined: Mar 2011
Posts: 5
Likes: 0
My brake pedal started making a wierd noise; I have a 2000 explorer with the V-8, 5.0L. The brake pads are ceramic and like new. I have bled the brakes, put in new fluid, and just replaced the front brake lines to try to fix this. I still have a weird noise like a Ksssshhh sound if I push the brakes really hard and quick. The pedal does not go all the way to the floor, and it doesn't do this all the time. Anybody have any ideas what else I can try?
 
Reply
Old Feb 5, 2012 | 07:02 AM
  #4  
PA-Mark's Avatar
PA-Mark
Posting Guru
Joined: Sep 2011
Posts: 1,076
Likes: 0
From: Mt. Holly Springs, PA
Club FTE Silver Member

need more info...

Originally Posted by mechanicmom
My brake pedal started making a wierd noise; I have a 2000 explorer with the V-8, 5.0L. The brake pads are ceramic and like new. I have bled the brakes, put in new fluid, and just replaced the front brake lines to try to fix this. I still have a weird noise like a Ksssshhh sound if I push the brakes really hard and quick. The pedal does not go all the way to the floor, and it doesn't do this all the time. Anybody have any ideas what else I can try?
Do you have a drop in braking performance while this noise is happening?

Also, is it only when cold, or after warm up? How audible is the noise? I know the last question is hard to describe over the internet, but maybe describe as; its loud enough for my passengers to look at me and say what is that, or its only something you hear...
 
Reply
Old Feb 17, 2012 | 11:59 AM
  #5  
mechanicmom's Avatar
mechanicmom
New User
Joined: Mar 2011
Posts: 5
Likes: 0
Re: Brake Problems

The sound is loud enough for everyone to hear...it goes "cushhh" if that makes sense? The problem occurs all the time (cold or warmed up). In fact, the noise used to be intermittent, but now is every time & the pedal also gets mushy. And yes, the brake performance is affected (slower to stop the vehicle).
 
Reply
Old Feb 17, 2012 | 12:02 PM
  #6  
mechanicmom's Avatar
mechanicmom
New User
Joined: Mar 2011
Posts: 5
Likes: 0
By the way, sorry, I think I've posted in the diesel area and mine is not a diesel.
 
Reply
Old Feb 17, 2012 | 08:15 PM
  #7  
PA-Mark's Avatar
PA-Mark
Posting Guru
Joined: Sep 2011
Posts: 1,076
Likes: 0
From: Mt. Holly Springs, PA
Club FTE Silver Member

well you posted in the superduty forum, we have diesels, but also gas engines too. if the noise sounds like sucking air then its a brake booster.

with engine at idle trans in park, put you head in the foot well near the pedels and hit the brake with your hand. if you hear the whoosh really loud, its definately the power brake booster.
Good luck,
 
Reply
Old Apr 16, 2012 | 01:25 PM
  #8  
mechanicmom's Avatar
mechanicmom
New User
Joined: Mar 2011
Posts: 5
Likes: 0
Smile Got brakes fixed...finally!

did every test we could, finally took to shop. Ended up being faulty SENSOR on LEFT FRONT WHEEL. Couldn't have detected it ourselves, they used specialized software.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

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

 Verdad Gallardo
story-1

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-2

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

 Brett Foote
story-3

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

 Michael S. Palmer
story-4

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-5

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-6

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
story-7

Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

 Joe Kucinski
story-8

Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

 Michael S. Palmer
story-9

The Best F-150 Deal of Every Trim Level (XL through Raptor)

 Joe Kucinski
Old Apr 16, 2012 | 07:25 PM
  #9  
PA-Mark's Avatar
PA-Mark
Posting Guru
Joined: Sep 2011
Posts: 1,076
Likes: 0
From: Mt. Holly Springs, PA
Club FTE Silver Member

good to hear! Now dont just dissapear, hang around a bit and make some friends here
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
greagin
1999 - 2003 7.3L Power Stroke Diesel
10
Apr 25, 2007 08:19 PM
gitane59
1999 - 2016 Super Duty
8
Jun 12, 2006 01:42 AM
reguy
Brakes, Steering, Suspension, Tires, & Wheels
1
Oct 17, 2004 11:17 PM
pitakit
Escape & Escape Hybrid
1
Sep 5, 2002 03:09 AM




All times are GMT -5. The time now is 06:58 AM.

story-0
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-1
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-2
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-3
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-4
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
story-5
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-6
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE
story-7
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

Slideshow: Ranking the 5 things owners love about their Super Duty and 5 things they don't

By Joe Kucinski | 2026-04-29 16:36:49


VIEW MORE
story-8
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

Slideshow: Ranking all 12 Ford truck engines available in 2026.

By Michael S. Palmer | 2026-04-22 13:32:20


VIEW MORE
story-9
The Best F-150 Deal of Every Trim Level (XL through Raptor)

Slideshow: The best Ford F-150 deal for every trim level (XL through Raptor)

By Joe Kucinski | 2026-04-21 15:59:01


VIEW MORE