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: 3951
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 12:09 AM.

story-0
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-1
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-2
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-3
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-4
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-5
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-6
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-7
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-8
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-9
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

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


VIEW MORE