steering wheel jerks under braking - Ford Powerstroke Diesel Forum
99-03 Ford Excursion Forum This forum is for topics relating to the Ford Excursion only.

Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 11-18-2012, 07:26 AM
Member
 

Join Date: Aug 2012
Posts: 54
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
steering wheel jerks under braking

So when I hit the brakes my steering wheel jerks right. Stuck caliper or something else? I have done brakes many times on cars but never on a truck (excursion). Easy to fix?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 11-27-2012, 09:07 PM
Member
 

Join Date: Aug 2012
Posts: 54
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
update

so I replaced the pads, clips, and springs as well as lubricated the pistons, sliders, and boots with caliper grease and the issue still exists. I also flushed the system and refilled with DOT 4 fluid. The vehicle still pulls right under braking.

Am I missing anything?

Next step will be new calipers (SSBC) with new pads and braided brake lines. I plan to keep stock rotors.

Thoughts?

Also, I noticed 3 lines near the hub (brake line into caliper, 2 others-one is rotted); Are the other 2 lines for 4x4???
Reply With Quote Quick reply to this message
  #3  
Old 11-28-2012, 01:19 AM
Compression Ignition Addict
 

Join Date: Aug 2012
Posts: 169
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I've seen proportioning valves cause this but rare. Most likely the caliper so your on the right track I believe.


Sent from my iPhone using AutoGuide.com App
Reply With Quote Quick reply to this message
  #4  
Old 11-28-2012, 05:32 AM
Compression Ignition Addict
 

Join Date: Oct 2012
Posts: 232
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
check the flex line to the caliper. I have seen these on other cars swell shut causing the symptom you describe.

SM
Reply With Quote Quick reply to this message
  #5  
Old 12-02-2012, 06:47 PM
Powerstroke.org Rookie
 

Join Date: May 2012
Location: Bloomington,mn
Posts: 28
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I had the same problem and the inner tie rods were bad.
Reply With Quote Quick reply to this message
  #6  
Old 01-18-2013, 07:35 AM
Member
 

Join Date: Aug 2012
Posts: 54
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
update - still have pull under braking

So here is a quick update on my situation:

I was experiencing a hard pull (right) under braking and assumed it was my brakes. So I changed my brake pads with all new clips and lubricated the slider pins and piston boots. This did not fix the problem. Next, I replaced my front brake calipers with an SSBC big brake kit, flushed fluid and added new DOT 4 fluid, and installed SS braided brake lines in the front. This did not fix the problem. The rotors look brand new and have plenty of material still so I did not replace. Next, I looked into the suspension, thinking I may have some weak spots in my suspension causing the pull. I had installed a 4” Pro-Comp lift kit (complete with shocks, front springs, add-a-leaf rear spring, dropped pitman arm), dual steering stabilizer kit, Hellwig rear sway bar kit, and warn premium hubs. I also had the suspension shop check the ball joints, tie rod ends, drag link, front sway bar, steering box, etc. and align. They said all looked fine except for some play in the steering box. None of these suspension upgrades fixed the brake pull problem. What is weird is that the shop installed a ball joint cam to adjust the caster and the brake pull still occurs, only now to the LEFT. Next, I had the steering box replaced at the dealership. I also had the dealership check the ball joints, tie rod ends, drag link, front sway bar, wheel bearings, etc. and align. Dealership said all looked fine. The new steering box fixed my slight road wander and constant steering wheel adjustment, but brake pull (left) still exists. I have a firm pedal so I assume my booster and master cylinder is good. I do not have any brake vibration/shutter so I assume my rotors are good. I have not looked at my rear brakes yet. I have no CEL codes/lights. It seems like the pull worsens as the brake system gets warmer.

I don’t know what to look into next…. Any ideas?? What am I missing??

My Excursion is a 2001 4x4 with ~60k miles.
Reply With Quote Quick reply to this message
  #7  
Old 01-25-2013, 03:59 PM
Member
 

Join Date: Aug 2012
Posts: 54
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Pull changed sides today

So here's a quick update. The brake pull has changed sides today!

I decided to get my stock rotors turned at a brake shop today as well as my recently installed pads sanded Thinking that it was worth a shot to see if this would solve my Brake pull. As soon as I left the brake shop and bedded in the brakes, the brake pull became Extremely noticeable – this time to the right!

This is good news, I think? I believe this tells me that the pull is not hydraulic in nature but based on the friction characteristics of the pad and rotor.

I purchased a new set of powers stop Cryo rotors and will install them tomorrow and hopefully this will fix my issue.
Reply With Quote Quick reply to this message
  #8  
Old 01-26-2013, 12:45 PM
Member
 

Join Date: Aug 2012
Posts: 54
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Picture attached

I've attached a picture of the new rotors installed.
Attached Thumbnails
steering wheel jerks under braking-image.jpg  
Reply With Quote Quick reply to this message
  #9  
Old 01-26-2013, 01:45 PM
Compression Ignition Addict
 

Join Date: Jan 2010
Posts: 387
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Nice set up. What was the estimated price for your set up. Did you change anything in the rear? Let us know the results as well.
Reply With Quote Quick reply to this message
  #10  
Old 01-26-2013, 03:11 PM
Compression Ignition Addict
 

Join Date: Oct 2012
Posts: 232
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by explosionFTL View Post
so I replaced the pads, clips, and springs as well as lubricated the pistons, sliders, and boots with caliper grease and the issue still exists. I also flushed the system and refilled with DOT 4 fluid. The vehicle still pulls right under braking.

Am I missing anything?

Next step will be new calipers (SSBC) with new pads and braided brake lines. I plan to keep stock rotors.

Thoughts?

Also, I noticed 3 lines near the hub (brake line into caliper, 2 others-one is rotted); Are the other 2 lines for 4x4???
the "rotted" line is likely the vacuum line for the automatic hubs. the hubs on my ex were changed out to manual warn hubs sometime before I bought it.

SM
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 12:14 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors