2012 Titanium Front Strut Low Speed Noise (Clunk/Rattle) - Page 193 - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus Third Generation > MK3 TSB, Recall & Problems Archive

MK3 TSB, Recall & Problems Archive The place to chat about TSB and Known Issues for the 2012 Focus.

Search This Forum | Image Search | Advanced Search    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 01-26-2013, 01:52 PM   #1921
thejordan
Focus Addict
 
thejordan's Avatar
 
Join Date: Dec 2012
Fan#: 107706
Location: Southern, CA
What I Drive: 2013 SGM Focus 5 Speed

Posts: 647
Points 974, Level 16
Points: 974, Level: 16 Points: 974, Level: 16 Points: 974, Level: 16
Level Up 74% Completed
Level up: 74% Level up: 74% Level up: 74%
Forum Activity 1%
Activity: 1% Activity: 1% Activity: 1%
FF Reputation: 4 thejordan Good Standing Member
Buy-Sell-Trade Rating: (1)
Quote:
Originally Posted by revhigh View Post
Zillion is 100% correct ... otherwise it would rip the halfshaft out of the trans as it moved up and down with the bumps in the road.

Every halfshaft I've ever seen has that lateral play.

REV
Lateral play when you pull on the wheel? I still don't think so. Maybe if you disconnect it from the hub assembly and get the play, but not while everything is attached. The wheel shouldn't move.
thejordan is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 01-26-2013, 03:35 PM   #1922
revhigh
Focus Enthusiast
 
Join Date: May 2012
Fan#: 98516
Location: Bangor, PA
What I Drive: 2012 Mazda 3 SkyActiv 6A Touring

Posts: 341
FF Reputation: 1 revhigh Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by thejordan View Post
Lateral play when you pull on the wheel? I still don't think so. Maybe if you disconnect it from the hub assembly and get the play, but not while everything is attached. The wheel shouldn't move.
If the car were suspended on a lift with the wheels free, you can generally get some lateral play by grasping the halfshaft and moving it in and out of the trans slightly. Never seen one NOT like that.

OR ... if you move the wheel up and down while it's on a lift, you'll see the halfshaft move in and out of the trans slightly. IT has to be like that ... if there were no play, up and down movement of the wheel on the road would pull it out of the transmission.

If you've ever replaced a half shaft ... you'd see what I mean. There is play in the splined area BEFORE it hits the retaining ring.

REV
revhigh is offline  
    Reply With Quote Quick reply to this message
Old 01-26-2013, 04:30 PM   #1923
thejordan
Focus Addict
 
thejordan's Avatar
 
Join Date: Dec 2012
Fan#: 107706
Location: Southern, CA
What I Drive: 2013 SGM Focus 5 Speed

Posts: 647
Points 974, Level 16
Points: 974, Level: 16 Points: 974, Level: 16 Points: 974, Level: 16
Level Up 74% Completed
Level up: 74% Level up: 74% Level up: 74%
Forum Activity 1%
Activity: 1% Activity: 1% Activity: 1%
FF Reputation: 4 thejordan Good Standing Member
Buy-Sell-Trade Rating: (1)
Quote:
Originally Posted by revhigh View Post
If the car were suspended on a lift with the wheels free, you can generally get some lateral play by grasping the halfshaft and moving it in and out of the trans slightly. Never seen one NOT like that.

OR ... if you move the wheel up and down while it's on a lift, you'll see the halfshaft move in and out of the trans slightly. IT has to be like that ... if there were no play, up and down movement of the wheel on the road would pull it out of the transmission.

If you've ever replaced a half shaft ... you'd see what I mean. There is play in the splined area BEFORE it hits the retaining ring.

REV
I've only replaced axles on AWD vehicles, and I understand everything up until you pull the wheel laterally (not up/down). When the wheel is attached, the wheel itself should not be moving laterally (outwards/inwards). Unless there's some difference in design that I am not aware of...

Like I said, I'm speculating based on my experience (not with a 2012 Focus). There has to be some sort of difference between '12 axles and '13 axles since they're different part numbers from different build dates.
thejordan is offline  
    Reply With Quote Quick reply to this message
Old 01-26-2013, 04:52 PM   #1924
jsr72
Focus Enthusiast
 
Join Date: Apr 2012
Fan#: 97393
Location: n/a, United States
What I Drive: 2012 Focus SE

Posts: 283
Points 150, Level 2
Points: 150, Level: 2 Points: 150, Level: 2 Points: 150, Level: 2
Level Up 50% Completed
Level up: 50% Level up: 50% Level up: 50%
Forum Activity 2%
Activity: 2% Activity: 2% Activity: 2%
FF Reputation: 5 jsr72 Good Standing Member
Buy-Sell-Trade Rating: (0)
Wheel end motion is accommodated by plunge within the inner cv joints. The halfshaft can slide laterally inside this joint housing. It can also articulate in angle.

This is needed for steering because the outer cv joint center isn't completely coincident with the steer axis. It is also needed for suspension travel because the arc of the wheel end motion isn't centered on the inner cv joint center. It is also needed to accommodate movement of the powertrain on its mounts.
jsr72 is online now  
    Reply With Quote Quick reply to this message
Old 01-26-2013, 05:28 PM   #1925
thejordan
Focus Addict
 
thejordan's Avatar
 
Join Date: Dec 2012
Fan#: 107706
Location: Southern, CA
What I Drive: 2013 SGM Focus 5 Speed

Posts: 647
Points 974, Level 16
Points: 974, Level: 16 Points: 974, Level: 16 Points: 974, Level: 16
Level Up 74% Completed
Level up: 74% Level up: 74% Level up: 74%
Forum Activity 1%
Activity: 1% Activity: 1% Activity: 1%
FF Reputation: 4 thejordan Good Standing Member
Buy-Sell-Trade Rating: (1)
Quote:
Originally Posted by jsr72 View Post
Wheel end motion is accommodated by plunge within the inner cv joints. The halfshaft can slide laterally inside this joint housing. It can also articulate in angle.

This is needed for steering because the outer cv joint center isn't completely coincident with the steer axis. It is also needed for suspension travel because the arc of the wheel end motion isn't centered on the inner cv joint center. It is also needed to accommodate movement of the powertrain on its mounts.
Okay that makes sense if the CV joint is allowing for this change at the wheel.

So the CV could be a likely candidate for the clunking sound? I'm wondering if the CV part of the axle is what they changed from '12 to '13 resulting in different part numbers then.

I'd like to see someone put in a '13 axle in their clunking '12.
thejordan is offline  
    Reply With Quote Quick reply to this message
Old 01-26-2013, 06:22 PM   #1926
Shade-010
Sonic Crew # 010
 
Shade-010's Avatar
 
Join Date: Jul 2011
Fan#: 87369
Location: Noblesville, IN
What I Drive: 2012 Ford Focus SE Sport - 5 Speed

Posts: 10,121
Points 14,537, Level 78
Points: 14,537, Level: 78 Points: 14,537, Level: 78 Points: 14,537, Level: 78
Level Up 22% Completed
Level up: 22% Level up: 22% Level up: 22%
Forum Activity 22%
Activity: 22% Activity: 22% Activity: 22%
FF Reputation: 10 Shade-010 Great Standing Member
Buy-Sell-Trade Rating: (3)
Quote:
Originally Posted by thejordan View Post
Okay that makes sense if the CV joint is allowing for this change at the wheel.

So the CV could be a likely candidate for the clunking sound? I'm wondering if the CV part of the axle is what they changed from '12 to '13 resulting in different part numbers then.

I'd like to see someone put in a '13 axle in their clunking '12.
Sounds like something to try, couldn't hurt
__________________
2012 Ford Focus SE Sport-5 speed-203A package
Basline 1 -155.48hp 145.80 tq 93 oct. Lunchbox delete & K-N Drop in filter.
Dyno 4 -177.17 hp 157.28 tq - 93 oct. RDC 2.5" Catback & RD-X Prototype CAI + Tune.
http://www.rebeldevil.com
Shade-010 is online now  
    Reply With Quote Quick reply to this message
Old 01-26-2013, 06:39 PM   #1927
thejordan
Focus Addict
 
thejordan's Avatar
 
Join Date: Dec 2012
Fan#: 107706
Location: Southern, CA
What I Drive: 2013 SGM Focus 5 Speed

Posts: 647
Points 974, Level 16
Points: 974, Level: 16 Points: 974, Level: 16 Points: 974, Level: 16
Level Up 74% Completed
Level up: 74% Level up: 74% Level up: 74%
Forum Activity 1%
Activity: 1% Activity: 1% Activity: 1%
FF Reputation: 4 thejordan Good Standing Member
Buy-Sell-Trade Rating: (1)
Quote:
Originally Posted by Shade-010 View Post
Sounds like something to try, couldn't hurt
aside from the strut tower plates, what other differences are there besides the cv/axle assembly for '12 and '13? just looking systematically...

the fact that it is temperature related (grease in the CV?) and occurs on bumps like a driveway (axle?), it seems plausible. it's just a $200+ part. unless ford can explain why the axles were updated...
thejordan is offline  
    Reply With Quote Quick reply to this message
Old 01-26-2013, 07:02 PM   #1928
Lipshurt
Focus Enthusiast
 
Join Date: Nov 2011
Fan#: 92314
Location: Vista, CA
What I Drive: 2012 blue focus SE

Posts: 180
Points 732, Level 14
Points: 732, Level: 14 Points: 732, Level: 14 Points: 732, Level: 14
Level Up 32% Completed
Level up: 32% Level up: 32% Level up: 32%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 2 Lipshurt Good Standing Member
Buy-Sell-Trade Rating: (0)
Just to even clearer....

The sound my half shaft makes is when you are under the car, with it sitting on ramps, on the wheels, and you grab the half shaft with your hand and jiggle towards the wheel and towards the tranny. It moves about .030 and makes the same type of sound I hear when I hit tiny bumps, and that sound goes away when it gets hot, but it takes longer than you think. Like ten minutes, and if its colder than 45 it takes a really long time to go away, but the only time I ever had it down to 35 degrees it was silent too, and then started making the noise again at 45 degrees.

The way I understand CV joints the slack should be taken up within the parts that slide around each other, and there would be no clunking when the half shaft moved only a little bit. It's hitting something at each end of that 1/32 inch of travel.

When the suspension compresses, it would change the distance between the wheel and the tranny but way more than that, and that distance is accommodated by the CV joint. But I would think that accommodation would be silent cuz nothing hits anything.
Lipshurt is offline  
    Reply With Quote Quick reply to this message
Old 01-27-2013, 09:56 AM   #1929
Dysan911
Focus Addict
 
Join Date: Feb 2012
Fan#: 95746
Location: Jacksonville, FL
What I Drive: 2012 White, Focus Titanium

Posts: 582
FF Reputation: 2 Dysan911 Good Standing Member
Buy-Sell-Trade Rating: (0)
Despite the noise from the half shaft. I mean even though it sounds similar to the clunk. The fact remains IMHO, that my dealership temporarily fixed my issue 100% for the brief 10k miles before the noise came back. As far as I know they did not replace anything to do with the half shafts, CV joints, etc. Only the Springs, Bearings, Top plate, bolts, etc. So I think were barking up the wrong tree by considering its CV/Shaft related. Obviously the noise has to be related to one of the parts replaced.

Has anyone had a close look at the dust boot on the strut? Is it pretty soft material or thick plastic that could be binding up? I recall in this thread that someone once applied a Bunch of Lithium grease somewhere on the dust boot (maybe up top) and it resolved the clunk until the grease dried up. Hmmmmm
__________________
2012 FF Ti HB Platinum White Tricoat, Built 12/11, 401A + Parking Technology Package and MFT w/NAV at 3.5.1
Dysan911 is offline  
    Reply With Quote Quick reply to this message
Old 01-27-2013, 11:52 AM   #1930
Dysan911
Focus Addict
 
Join Date: Feb 2012
Fan#: 95746
Location: Jacksonville, FL
What I Drive: 2012 White, Focus Titanium

Posts: 582
FF Reputation: 2 Dysan911 Good Standing Member
Buy-Sell-Trade Rating: (0)
FOUND IT!!!!!!!!!!!!!!!!

I am going to make a video and post shortly. with the help of my son I was able to reproduce the sound 100%.
__________________
2012 FF Ti HB Platinum White Tricoat, Built 12/11, 401A + Parking Technology Package and MFT w/NAV at 3.5.1
Dysan911 is offline  
    Reply With Quote Quick reply to this message
Reply

Bookmarks & Social Networks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS 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:
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

Forum Jump


All times are GMT -5. The time now is 03:36 AM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Audi S3, Ford Fusion and Acura TLX. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. Challenger Hellcat - Charger Hellcat