Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 1997 - 2003 F150
Sign in using an external account
Register Forgot Password?


1997 - 2003 F150 1997-2003 F150, 1997-1999 F250LD, 7700 & 2004 F150 Heritage SPONSORED BY:

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 01-03-2013, 11:33 AM
CAPTUPER CAPTUPER is offline
New User
 
Join Date: Sep 2005
Posts: 8
CAPTUPER is starting off with a positive reputation.
Question 1999 F150 ANOTHER SOFT PEDAL PROBLEM, HELP!!

I HAVE A 1999 F150 4X4 THAT HAS HAD SOFT PEDAL PROBLEMS EVER SINCE I CHANGED THE BRAKES THE FIRST TIME. TRUCK HAD NICE FIRM PEDAL AT THE TOP WHEN I BOUGHT THE TRUCK, BUT WHEN IT CAME TIME TO CHANGE THE BRAKES, THE PEDAL WENT SOFT AND HAS NEVER REGAINED THAT NICE FIRM PEDAL. I HAVE CHANGED EVERYTHING ON THE TRUCK...BRAKE PADS - ROTORS - BRAKE LINES - MASTER CYLINDER, EVERYTHING SEVERAL TIMES!! BLED THE BRAKES A HUNDRED TIMES. TOOK IT INTO 3 DIFFERENT BRAKE SHOPS AND THEY ALL SAID THAT IS JUST THE WAY THIS YEARS BRAKES ARE. BULL..I SAY. ROTORS WERE GETTING EATEN UP OVER AND OVER...HAVING CHANGED THEM 6 OR 8 TIMES BEFORE I UNPLUGED THE ABS UNIT UNDER THE HOOD. I AM CURRENTLY ON THE SAME ROTORS FOR THE PAST 3 YEARS NOW. BUTTTTTTTT.....I STILL HAVE A SOFT PEDAL THAT GOES TO THE FLOOR AND DOES NOT LOCK UP THE BRAKES WHICH SCARES ME TO DEATH!! CAN ANYONE WHO MIGHT HAVE HAD THIS PROBLEM HELP ME?????? PLEASSSSSE??
Reply With Quote
  #2  
Old 01-03-2013, 02:27 PM
Bluegrass 7 Bluegrass 7 is offline
Postmaster
 
Join Date: Sep 2006
Posts: 4,851
Bluegrass 7 has a good reputation on FTE.Bluegrass 7 has a good reputation on FTE.
Don't drive the truck until you get this straightened out.
First thing to do is check the master cylinder push rod length.
If missadjusted the cylinder piston seals are not in the correct location over the ports.
It's terrible for a brake shop to tell you what they did knowing full well no brake system is supposed to work like that.
If they were to let a vehichle out of their shop and it resulted in an accident, guess who's a@@ would be in a sling, liability wise.
.
There has to be an answer to this because liquids do not compress, only air and gasses unless mechanically the pressure is being lost.
Hope it's your answer.
Good luck.
Reply With Quote
  #3  
Old 01-03-2013, 03:23 PM
CAPTUPER CAPTUPER is offline
New User
 
Join Date: Sep 2005
Posts: 8
CAPTUPER is starting off with a positive reputation.
Cool Thanks for the help...

I GOT YOUR ANSWER AND I AGREE WITH YOU WHOLE HARDEDLY, THE SHOPS SHOULDN'T BE ABLE TO GET AWAY WITH IT. I HAVE BEEN BILKED FOR OVER $600 TRYING TO FIX THIS PROBLEM. I AM SO GUN SHY NOW THAT I AM AFRAID TO TAKE IT INTO ANOTHER SHOP.
WHAT IS REALLY WIERD IS THAT WHEN THE CARD IS SHUT OFF, I HAVE A HARD PEDAL ALL THE WAY AT THE TOP, BUT AS SOON AS I START THE ENGINE, THE PEDAL DROPS TO THE FLOOR.
Reply With Quote
  #4  
Old 01-03-2013, 03:47 PM
Lime1GT Lime1GT is offline
Elder User
 
Join Date: Jul 2010
Posts: 515
Lime1GT is starting off with a positive reputation.
I assume this is a full disc brake system, not rear drums. Have you checked all 8 caliper slide pins for seizing?
Reply With Quote
  #5  
Old 01-03-2013, 05:01 PM
CAPTUPER CAPTUPER is offline
New User
 
Join Date: Sep 2005
Posts: 8
CAPTUPER is starting off with a positive reputation.
1999 F150

YES, IN FACT ALL FOUR CALIPERS ARE BRAND NEW AND FUNCTIONING CORRECTLY. KINDA WIERD EH??
Reply With Quote
  #6  
Old 01-03-2013, 06:12 PM
Lime1GT Lime1GT is offline
Elder User
 
Join Date: Jul 2010
Posts: 515
Lime1GT is starting off with a positive reputation.
I've always bled brakes rr, lr, rf and lf. I know if abs is involved and fluid was lost from that unit some require a scanner to activate the abs to bleed air from the abs module. Now recently I watched this Motorweek video and Pat Goss had changed the bleed sequence. I don't know if it has any relevance to your problem but it's worth a look. Bleeding Brakes |*MotorWeek
Reply With Quote
  #7  
Old 01-03-2013, 08:02 PM
Bluegrass 7 Bluegrass 7 is offline
Postmaster
 
Join Date: Sep 2006
Posts: 4,851
Bluegrass 7 has a good reputation on FTE.Bluegrass 7 has a good reputation on FTE.
I might add that in rare instances the brake booster can be defective and pull the pedal down and not let it return.
Look at he actuating rod length.
Good luck.
Reply With Quote
  #8  
Old 01-03-2013, 10:07 PM
Lime1GT Lime1GT is offline
Elder User
 
Join Date: Jul 2010
Posts: 515
Lime1GT is starting off with a positive reputation.
If this is a 4 wheel abs system not rabs, my manual says to bleed master cylinder first. Then RR, LR, ABS control module, RF, LF. It says a diagnostic scanner is needed to command the abs module to cycle. I wouldn't think the module needs bleeding for caliper or hose changing as long as the master cylinder resevoir wasn't allowed to drain dry, however a master cylinder or steel lines to the module being changed might, depending on how new fluid was added. Before I do any brake pedal pushing I usually add fluid and let it gravity feed the lines I changed until fluid runs freely from them before final tightening of the fittings.
Reply With Quote
  #9  
Old 01-03-2013, 11:36 PM
fordguy2236's Avatar
fordguy2236 fordguy2236 is offline
Senior User
 
Join Date: Oct 2011
Posts: 215
fordguy2236 is starting off with a positive reputation.
i am having this same problem and have since day one with my 1997 f150 4x4 with abs. i bout the truck a little over a year ago. a local mechanic (who i trust and he does good work) replaced all the brakes and shoes (has rear drums) and all the rusted out lines. and still have very soft break peddle. it goes all the way to the floor before i have anything. but i can lock up my wheels. also my abs light is on could that cause anything?
Reply With Quote
  #10  
Old 03-22-2013, 12:17 AM
bvanover bvanover is offline
New User
 
Join Date: Mar 2013
Posts: 1
bvanover is starting off with a positive reputation.
I had a problem with my truck rotors and pads wearing out in 25000 miles, so I thought that I would change the brake calabers and brake lines alone with the pads and rotors. After I blead the brakes I had a soft pedal that went all the way to the floor. I blead the brakes 4 times still same problem. with the help of three different mecantics the soft pedal was still there. I gave up and took the truck to a brake shop. he had the problem solved in about one hour. come to find out that I had put the calabers on the wrong wheels. I know now to always work on one wheel at a time and make sure the bleeder valve is at the top of the calaber. also I have a teenager that was driving my truck could be the reason that the breaks wore out so fast hope this helps some one like me that trys to do ther own breaks
Reply With Quote
  #11  
Old 03-24-2013, 09:28 AM
David Porath David Porath is offline
New User
 
Join Date: Mar 2013
Posts: 4
David Porath is starting off with a positive reputation.
Quote:
Originally Posted by fordguy2236 View Post
i am having this same problem and have since day one with my 1997 f150 4x4 with abs. i bout the truck a little over a year ago. a local mechanic (who i trust and he does good work) replaced all the brakes and shoes (has rear drums) and all the rusted out lines. and still have very soft break peddle. it goes all the way to the floor before i have anything. but i can lock up my wheels. also my abs light is on could that cause anything?

i to have a 97 f150 that had the same problem all i had to do to it was adjust the rear brakes as the rear brakes are pedal height once i adjusted the rear brakes my pedal came right back to the top
Reply With Quote
  #12  
Old 03-24-2013, 12:26 PM
70f100longbed's Avatar
70f100longbed 70f100longbed is online now
Elder User
 
Join Date: Aug 2002
Location: Raleigh USA
Posts: 982
70f100longbed has a good reputation on FTE.70f100longbed has a good reputation on FTE.
I have seen a few ABS units cause this problem. The dump valve gets stuck and all the brake pressure gets dumped into the accumulator. Make some plugs for the master cylinder and plug both ports. The pedal should be rock hard and not move more than an inch. If it does move then the problem is in the master cylinder or booster. If it does not move then the problem is the ABS unit.
__________________
Ford senior master tech
Every 5.4 3V owner should have Lisle tool #65600
8L3Z-6M280-B updated VCT solenoids for 5.4 3V rattle
Reply With Quote
  #13  
Old 03-26-2013, 10:12 PM
rrenelopez rrenelopez is offline
New User
 
Join Date: Oct 2012
Location: El paso tx
Posts: 16
rrenelopez is starting off with a positive reputation.
Ok here is my problem, on my 1999 4x4 it has been twice that im going around 5 to 10 mph and when trying to brake my pedal gets blocked or just stuck at the top doesn't go down at all, my brakes sound like metal to metal grinding and pressing and releasing the pedal several times get rid of the problem. The first time it happened i was so woried i went straight to the brake shop and got all the brake pads replaced. My abs light has turned on a few times after that but i have not felt that terrible grinding any more. Allso my brakes have never worked the way the peddal is always low and when i slam on them the abs kicks in but the truck doesn't stop fast enough i dont trust my brakes. so far i changed only pads rotos and discs. Some one has experience this or has suggestions
Reply With Quote
  #14  
Old 03-27-2013, 09:00 PM
pdqford pdqford is offline
Posting Guru
 
Join Date: Jan 2001
Location: Central NYS
Posts: 1,807
pdqford is gaining momentum as a positive member of FTE.pdqford is gaining momentum as a positive member of FTE.
I'd check for a bad wheel bearing assembly. If they get too worn, the hub lays over a little bit and the wheel speed sensor doesn't get a good reading from the tone ring, and, the PCM then thinks that wheel has stoped turning and initiates the ABS.
__________________
Jim in Central NY
'79 2WD F-150 Lariet w/302,4spd OD, 228,965 mi. (Original Owner!)
'02 4X4 Navigator w/5.4L DOHC 32v Intech V-8 (VIN R).
http://www.fuelly.com/sig-us/50500.png
Reply With Quote
  #15  
Old 03-27-2013, 09:53 PM
rrenelopez rrenelopez is offline
New User
 
Join Date: Oct 2012
Location: El paso tx
Posts: 16
rrenelopez is starting off with a positive reputation.
Ok great thanks for the advise pdqford
Reply With Quote
Old 03-27-2013, 09:53 PM
 
 
 
Reply

Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 1997 - 2003 F150

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Brake Problems 88idigray Super Duty & Heavy Duty 4 03-18-2014 11:04 AM
Brakes arent holding pressure Truck Guy99 1987 - 1996 F150 & Larger F-Series Trucks 4 12-09-2013 03:33 PM
2000 F-150 Soft Brake pedal stonerboys 1997 - 2003 F150 2 08-05-2013 09:33 AM
Brake booster for soft pedal Chasvan 1987 - 1996 F150 & Larger F-Series Trucks 0 11-10-2012 10:00 PM
Soft Brakes vtjvt 1987 - 1996 F150 & Larger F-Series Trucks 11 09-30-2012 04:06 PM



All times are GMT -5. The time now is 06:43 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup