Notices
1997 - 2003 F150 1997-2003 F150, 1997-1999 F250LD, 7700 & 2004 F150 Heritage
Sponsored by:
Sponsored by: Auxito

Front ABS issue?

Thread Tools
 
Search this Thread
 
Old Oct 31, 2016 | 08:36 AM
  #1  
keyul's Avatar
keyul
Thread Starter
|
Logistics Pro
20 Year Member
Photogenic
Joined: Dec 2004
Posts: 3,920
Likes: 2
From: Carson City, NV
Front ABS issue?

2003 F150 5.4L 4x4

I recently replaced my entire front end, new calipers, pads, rotors, steering knuckles, shocks, upper & lower control arms, inner & outer tie rods.

During the last few MPH before coming to a complete stop, the front left pulses, feels like the abs is activating on that wheel. It only does it probably from 3 mph down to a stand still.

The abs sensor was a bit stubborn taking out during the front end rebuild, I'm wondering if it got damaged, or if there could be something else going on?
 
Reply
Old Oct 31, 2016 | 10:45 AM
  #2  
Bluegrass 7's Avatar
Bluegrass 7
Lead Driver
15 Year Member
Joined: Sep 2006
Posts: 7,907
Likes: 143
Over torquing the front discs can distort them and cause this problem.
Or one disc is out of spec.
Good luck.
 
Reply
Old Oct 31, 2016 | 05:08 PM
  #3  
keyul's Avatar
keyul
Thread Starter
|
Logistics Pro
20 Year Member
Photogenic
Joined: Dec 2004
Posts: 3,920
Likes: 2
From: Carson City, NV
Originally Posted by Bluegrass 7
Over torquing the front discs can distort them and cause this problem.
Or one disc is out of spec.
Good luck.
I think you're referring to brake shudder. Abs sensors read from a ring that is not attached to the disc.

I found my problem, the little wire is severed, time for a new sensor:
Name:  abs_zpsm2jkqq3f.jpg
Views: 3947
Size:  131.7 KB
 
Reply
Old Oct 31, 2016 | 05:53 PM
  #4  
steve(ill)'s Avatar
steve(ill)
Hotshot
20 Year Member
Joined: Jul 2005
Posts: 11,931
Likes: 180
you should have had an ABS light on if the wire was broken... would not pass startup continuity test.
 
Reply
Old Oct 31, 2016 | 06:56 PM
  #5  
keyul's Avatar
keyul
Thread Starter
|
Logistics Pro
20 Year Member
Photogenic
Joined: Dec 2004
Posts: 3,920
Likes: 2
From: Carson City, NV
Originally Posted by steve(ill)
you should have had an ABS light on if the wire was broken... would not pass startup continuity test.
True but there are two ends to that broken wire, and if they're both touching the metal inside the knuckle, it'll still make a complete circuit. Safe bet I need a new one though!
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Bluef2.5.0
1999 - 2016 Super Duty
2
May 28, 2019 05:17 PM
edsheridan
Excursion - King of SUVs
1
Aug 25, 2014 02:39 PM
atesvn
Brakes, Steering, Suspension, Tires, & Wheels
3
Aug 11, 2008 11:01 AM
7700Rob
1997 - 2003 F150
8
Nov 13, 2007 06:52 AM




All times are GMT -5. The time now is 02:00 PM.

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