Vibration between 50 & 70 mph

[Lo Pony]

Someone mentioned in this thread a while back that they heard through their dealer that supposedly there is a new part number for the driveshaft assembly, which means there could be a design change. Time will tell.

Yes, that is a few pages back. I don't know why they went to the two piece driveshaft design either. Some say it was for pinion angle, but I think it was more for crash safety. They did their best to account for the vibration by putting in the rubber parts in the front and back. Apparently this was not enough. What they put in the cars is basically the truck driveshaft configuration. What they always forget is that what works on a live axle vehicle almost never translates well to an IRS car. Same thing happened with the 99 and 01 cobras. They totally forgot lessons from the past.

Sponsored

 

[5.0 Probie]

Got our Mustang back today. No excessive vibration.

They rebuilt the rearend. All new parts. They told me when they opened the diff it looked like a metallic liquid and the teeth already had wear marks on them.

Keep in mind we just now have 2100 miles on the odometer. They instructed we drive it like we need to do a break-in period of 500-1000 miles and then come back in for a checkup.

 

[ultimate warrior]

100 pages and nearly 73,000 views to this thread ...

and

all was going well for my vehicle too, as my 2016 EB was correctively fixed as of March 3, 2016...

until now...

The %&@$#! Center Carrier Bearing is %&@$#! click-clacking-clinking like a %&@$#! MO-FO!!!!

Yep, you read that right. The Center Carrier Bearing is clunking and clacking so loud that it sounds like my trans tunnel is being pummeled by a jack hammer. Over the last few days, each morning when I initially start the vehicle and drive from 0-35mph, the bearing sounds similar to when a drive shaft U-joint end cap is blown off, loud clanking sound that increases with vehicle speed.

I recorded it, and the reason I did was because once the vehicle temp gets to normal operating temp (OR carrier bearing gets heated from exhaust and vehicle speed), the noise diminishes and eventually is gone. So I HAD to record it to prove to my Ford Service Center that the car has another issue with the %&@$#! driveshaft assembly!!

When the car sits for at least a few hours (such as when leaving work), the same noise erupts upon driving away and lasts for a good 15-20 minutes (until car or part is warmed again).

its 109% coming from the center bearing - f you grab either driveshaft (on either side of the carrier bearing) and press it upward (or jiggle it), it makes a solid "clank" noise at the bearing - the same noise heard in the cabin.

The thin walled aluminum "cage" that surrounds the carrier bearing which is secured to the top of the trans tunnel is NOT loose at all. I can see a lot of play in the bearing when pressing or rotating the driveshaft(s).

Why is that bearing cage made of aluminum, so thin and fragile looking?? I mean that is the only piece supporting the center bearing AND the two piece driveshaft! Even the center bearing is very inferior looking especially when two driveshafts are secured to it.

Ugh.

What a Royal Pain In the %&@$#! Ass this new car purchase experience has been. I have NEVER had such Quality Control issues or inferior parts issues with ANY new vehicle I have EVER purchased.

Now I have a scheduled Service Appontment for June 6 (already went to see my FSC Service Manager today who was cool and said he can't even believe it's the driveshaft again!!).

Stay tuned....

If you ask me - the entire 2-piece design is a POS design. Ford needs to drop their current driveshaft Supplier, get better parts AND get their Engineering Team to redesign the center bearing assembly, period.

just sayin:

http://www.mustang6g.com/forums/showpost.php?p=1190352&postcount=1203

http://www.mustang6g.com/forums/showpost.php?p=1203125&postcount=1223


2 piece isnt a big deal as long as you're able to build a solid part. japan had it perfected back in the 80s, no reason Ford cant get this right.

 

[speedfrk]

just sayin:

http://www.mustang6g.com/forums/showpost.php?p=1190352&postcount=1203

http://www.mustang6g.com/forums/showpost.php?p=1203125&postcount=1223


2 piece isnt a big deal as long as you're able to build a solid part. japan had it perfected back in the 80s, no reason Ford cant get this right.

Right, my 73 XJ12 had a 2 piece DS with a center bearing and it was sewing machine smooth. Hard to imagine what is so difficult about this set-up on the Mustang.

 

[347CobraII]

Driveshaft length reason for 2 piece with carrier bearing. Mustang has used 2 piece driveshaft since 2005

 

[94Cobra]

Bought my 2016 three weeks ago. Used for two days and brought it back.. I just go my car back today...June 2, 2016...The SD replaced pinion bearing, crush rings in the DIF,installed new drive shaft and flange, and put on a new tire on the right rear. This all took three weeks...the still car still vibrates....they are clueless.... I think Ford needs to do a buy back so I can go buy a better car....Ford has been on top for a long time.....this may be the start of their downfall....time will tell

 

[Cobra Jet]

Actually, this might be good news! I'm looking at this from a larger perspective. We have been talking about the DS hanger "carrier" bearing for a while as being a culprit. This looks like a definitive case where it IS a problem!

Now, CobraJet - aside from the noise, how does this shot bearing affect the vibration in your opinion? Any worsening since you started having this problem?

Funny you should ask about the vibration since the carrier bearing is bad...

The only vibe I feel (and it's different from the previous issue) is very slight when the thing is clanking around upon initial drive in morning and then again initial drive upon leaving work for the day. It's there for like the first 15-20 mins into the drive, then levels off and is gone. At which point there's no vibe or noise and car drives perfectly fine and is smooth as butter.

I will say this, damn bearing makes quite a racket until it gets warmed up! It's so similar to when a u-joint blows off an end cap, or when say the needle bearings in a u-joint cap are totally worn out and you experience or hear the "click-clacking" as the u-joint rotates with the driveshaft. Obviously in severe situations of the u-joint cap is gone, the u-joint will shake in the end of the driveshaft violently with speed.

Due to where the center bearing is located on the S550 (directly below center console storage compartment), I can feel the console and trans tunnel vibrate if my hand is on side of trans tunnel or on console. The noise is just obnoxious to say the least.

Either the bearing has broken free from the cage or there's an issue where the front and rear driveshaft intersect into the carrier bearing. I'd highly doubt there's any issues with the u-joints in that section, but at this point ANYTHING is possible...

It's just a big Pain in the Ass having to go back to the Dealer yet again due to a POS driveshaft design and/or inferior POS parts. Absolutely absurd.

If anyone has seen the actual carrier bearing cage - you would see what I am saying about the design - the cage that holds the bearing is approximately 1/2" to 3/4" thick and is aluminum. I don't even think the thickness is 1", if it is, it would surprise me. The bearing is supported in the middle of the cage with rubber surround and the front and rear drivehsaft meet at that juncture. The bearing itself is hardly big at all, which surprises me especially when you have a long 2-piece driveshaft being supported in the middle of it.

The bearing cage is only secured to the top of the trans tunnel with (2) bolts (they look to be maybe 9/16" or 1/2" bolts of that). NOTHING supports the cage from either side (to prevent it from distorting under load) and NOTHING supports it from underneath from it distorting under load.

So if any of you have seen the vid in this thread of the drivehsaft wobbling within the carrier (and I can't recall IF that was from an S550 or not) - then you can imagine the force and load being put on such a WEAK carrier bearing cage AND the thin sheet metal floor pan where it gets secured at a SINGLE location.

Try and picture a big rig mud flap - where the top of the flap is secured to the chassis and it can sway back and forth or side to side as the truck is going down the highway... Since the flap is only secured at the TOP, over time it has the tendency to get damaged, bend or even tear off...

THAT is the best analogy of how I can visually describe the carrier bearing cage... Under load, it's only secured by (2) measly bolts going through sheet metal and can twist/vibrate/distort under load as the 2-piece driveshaft rotates at X,xxx RPM...

I have the recording to email if a member can host it for me, as I don't have any video or audio accounts to host from...

 

[347CobraII]

Actually carrier bearing support bigger on S550 over S197. Don't need much to support carrier bearing (big bolts). Even big trucks are not big there 1/2 bolts one per side and steel cage/support that goes around not very thick around 1/16 thick. It's same from low hp to high hp (625 hp 2150 tq) this even with guys who crank power up no problems. Carrier bearing doesn't really have any side loading. As long bearing is ok it really just hold driveshaft in place

 

[SWETRID]

This is right from Ford message boards. Looks like rear diff replacement is high up on list.

Discussion BoardsParts & Service Discussion BoardTech-to-TechMustang driveline vibration

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Author Topic: Mustang driveline vibration Print Topic
JEREMY
Crossroads Ford of Indian Trai
Indian Trail, NC
(704) 283-8521 I have a 2015 mustang 2.3 eco boost with driveline vibration. I have performed driveline runout checks and replaced driveshaft and also performed runout checks on new driveshaft and rear axle companion flange. Runouts test are within specs. I have rotated driveshaft to three different positions and it seems to be better with new driveshaft but still has unacceptable vibration, any one experienced this concern. I am leaning toward differential concern. Any help would be appreicated, thanks.
May 17, 2016 10:22:05 AM
LARRY
Rochester Ford-Lincoln, Inc.
Rochester, IN
(574) 223-3161 what is driveline angle front and rear?
May 17, 2016 12:41:17 PM
Adam
Noble Automotive, Inc.
Newton, IA
(641) 787-9990 Pull the diff and check the baklash in multiple spots, had one that had a weird vibration above 55mph you could feel in the seat. Checked the diff after going back and forth with hotline and found the backlash varied from .004" to .010" like the ring gear wasnt machined flush to the carrier.
May 17, 2016 12:54:37 PM
GEORGE
AutoNation Ford Brooksville
Brooksville, FL
(352) 796-3525 3 driveshafts here ( in shop ) and one of the replacements was faulty
May 17, 2016 03:57:42 PM
John
Coconut Point Ford
Estero, FL
(239) 498-3673 WE HAD 2 VEHICLES DO THAT, IF THE DRIVE SHAFT DOESN'T FIX IT, REMOVED THE REAR AXLES AND CAP THEM SO FLUID DOESN'T LEAK OUT. RUN THE VEHICLE UP WITH THE DRIVE SHAFT IN IT, IF NO VIBRATION FELT. INSTALL DRIVE SHAFT AND RUN VEHICLE BACK UP WITH THE AXLES OUT. IF VIBRATION IS STILL THERE THEN IT WILL NEED A REAR DIFFERENTIAL. THE 2 WE HAD WERE ENTIRE ASSEMBLIES WITH NO TEAR DOWN REQUIRED. YOU WILL PROBABLY PUT A REAR DIFF ASSEMBLY IN IT.

May 18, 2016 02:53:53 PM
Paul
Park City Ford, Inc.
Bridgeport, CT
(203) 366-3425 gentlemen I have a 15 mustang with the same concern Parts cannot come up with a number for the complete diff any help is appreceated
May 23, 2016 04:42:08 PM
KYLE
All Star Ford Lincoln
Prairieville, LA
(225) 677-8181 WE HAD THE SAME THING HERE, CONCERN MADE IT TO THE FSE, HE ORDERED US A COMPLETE DIFF AND IT FIX IT
May 24, 2016 05:57:18 PM
Chuck
Vic Bailey Ford Lincoln
Spartanburg, SC
(864) 585-3600 Does the fse have to order the differential or does anyone have the base part number?
May 26, 2016 03:57:01 PM
Brian
Landers Ford
Collierville, TN
(901) 854-3673 Just build it. I have done 2 or 3, I can't remember, for the same concern. Replaced ring and pinion, carrier, and pinion flange.
May 26, 2016 04:49:14 PM
GREGORY
Town & Country Ford Inc
Charlotte, NC
(704) 536-2131 We had one too, diff assembly fixed it. Before the diff the carrier, ring and pinion and driveshaft were replaced.

May 30, 2016 04:00:49 PM
marshall
Ford of Port Richey
Port Richey, FL
(727) 868-9545 We had guy complaining about a vibration also. Before replacing the rear diff. we replaced 2 drive shafts, rebuilt the diff 2 times, and then we let the customer test drive multiple diffrent like mustangs before he found the one he wanted. We took the diff out of that one and put it in his. FSE was out here a handful of times trying to fix it.
May 31, 2016 08:02:54 AM
Ryan
Flammer Ford of Spring Hill
Spring Hill, FL
(352) 686-8255 A 3.31 rear will have a boom noise/vibration or both. I had a convertible with 700 on the clock and it's worse in those. FSE agreed after driveshaft and both axles replaced as per hotline to replace entire center section. That fixed it. Compared to another 3.31 on the lot - had the same concern, just a bit different due to it being a coupe.

May 31, 2016 08:52:30 AM
Ryan
Flammer Ford of Spring Hill
Spring Hill, FL
(352) 686-8255 i smell a customer satisfaction recall/tsb

 

[FordTechOne]

Bought my 2016 three weeks ago. Used for two days and brought it back.. I just go my car back today...June 2, 2016...The SD replaced pinion bearing, crush rings in the DIF,installed new drive shaft and flange, and put on a new tire on the right rear. This all took three weeks...the still car still vibrates....they are clueless.... I think Ford needs to do a buy back so I can go buy a better car....Ford has been on top for a long time.....this may be the start of their downfall....time will tell

A "vibration" concern is entirely open to interpretation. A vibration for one person may be unperceivable to another, and vice versa. That is why all of these "vibration" complaints are invalid until someone can provide some factual data to support their complaints. I find it very hard to believe that with all the people in this thread complaining about various vibrations that not a single dealer has verified the concern with a vibration analyzer and provided readings.

Without readings, it's impossible to know if one person's vibration concern is a result of excessive tire road force while another person's vibration concern is the result of a faulty axle, differential, driveshaft, flange, or any of the other multiple rotating components on the vehicle. There is also the forum/internet mentality that caused people to become convinced that their vehicle has a problem based on the complaints of others.

So once again...I ask...does anyone have a valid vibration analyzer reading? If they do, I can tell you the possible causal components of the vibration, and help with isolating the root cause.

 

[MikeD1]

This is right from Ford message boards. Looks like rear diff replacement is high up on list.

Discussion BoardsParts & Service Discussion BoardTech-to-TechMustang driveline vibration

Interesting, I wonder if Elder in Tampa is posting anything about my car. It's been there almost 2 weeks now & and an FSE was suppose to be coming to look at it.

 

[GT Pony]

Without readings, it's impossible to know if one person's vibration concern is a result of excessive tire road force while another person's vibration concern is the result of a faulty axle, differential, driveshaft, flange, or any of the other multiple rotating components on the vehicle. There is also the forum/internet mentality that caused people to become convinced that their vehicle has a problem based on the complaints of others.

So once again...I ask...does anyone have a valid vibration analyzer reading? If they do, I can tell you the possible causal components of the vibration, and help with isolating the root cause.

A few people here in this thread have posted what the actual readings were, and many have said that when the field engineer from Ford shows up at the dealer they do use the vibration analyzer to trouble-shoot the vibration.

 

[FordTechOne]

A few people here in this thread have posted what the actual readings were, and many have said that when the field engineer from Ford shows up at the dealer they do use the vibration analyzer to trouble-shoot the vibration.

Please do reference these values.

 

[speedfrk]

This is right from Ford message boards. Looks like rear diff replacement is high up on list.

Discussion BoardsParts & Service Discussion BoardTech-to-TechMustang driveline vibration

Send an email to webmaster

View Most Recent Message Refresh Open Discussion Boards in a New Window Information Search Discussion Board:


Author Topic: Mustang driveline vibration Print Topic
JEREMY
Crossroads Ford of Indian Trai
Indian Trail, NC
(704) 283-8521 I have a 2015 mustang 2.3 eco boost with driveline vibration. I have performed driveline runout checks and replaced driveshaft and also performed runout checks on new driveshaft and rear axle companion flange. Runouts test are within specs. I have rotated driveshaft to three different positions and it seems to be better with new driveshaft but still has unacceptable vibration, any one experienced this concern. I am leaning toward differential concern. Any help would be appreicated, thanks.
May 17, 2016 10:22:05 AM
LARRY
Rochester Ford-Lincoln, Inc.
Rochester, IN
(574) 223-3161 what is driveline angle front and rear?
May 17, 2016 12:41:17 PM
Adam
Noble Automotive, Inc.
Newton, IA
(641) 787-9990 Pull the diff and check the baklash in multiple spots, had one that had a weird vibration above 55mph you could feel in the seat. Checked the diff after going back and forth with hotline and found the backlash varied from .004" to .010" like the ring gear wasnt machined flush to the carrier.
May 17, 2016 12:54:37 PM
GEORGE
AutoNation Ford Brooksville
Brooksville, FL
(352) 796-3525 3 driveshafts here ( in shop ) and one of the replacements was faulty
May 17, 2016 03:57:42 PM
John
Coconut Point Ford
Estero, FL
(239) 498-3673 WE HAD 2 VEHICLES DO THAT, IF THE DRIVE SHAFT DOESN'T FIX IT, REMOVED THE REAR AXLES AND CAP THEM SO FLUID DOESN'T LEAK OUT. RUN THE VEHICLE UP WITH THE DRIVE SHAFT IN IT, IF NO VIBRATION FELT. INSTALL DRIVE SHAFT AND RUN VEHICLE BACK UP WITH THE AXLES OUT. IF VIBRATION IS STILL THERE THEN IT WILL NEED A REAR DIFFERENTIAL. THE 2 WE HAD WERE ENTIRE ASSEMBLIES WITH NO TEAR DOWN REQUIRED. YOU WILL PROBABLY PUT A REAR DIFF ASSEMBLY IN IT.

May 18, 2016 02:53:53 PM
Paul
Park City Ford, Inc.
Bridgeport, CT
(203) 366-3425 gentlemen I have a 15 mustang with the same concern Parts cannot come up with a number for the complete diff any help is appreceated
May 23, 2016 04:42:08 PM
KYLE
All Star Ford Lincoln
Prairieville, LA
(225) 677-8181 WE HAD THE SAME THING HERE, CONCERN MADE IT TO THE FSE, HE ORDERED US A COMPLETE DIFF AND IT FIX IT
May 24, 2016 05:57:18 PM
Chuck
Vic Bailey Ford Lincoln
Spartanburg, SC
(864) 585-3600 Does the fse have to order the differential or does anyone have the base part number?
May 26, 2016 03:57:01 PM
Brian
Landers Ford
Collierville, TN
(901) 854-3673 Just build it. I have done 2 or 3, I can't remember, for the same concern. Replaced ring and pinion, carrier, and pinion flange.
May 26, 2016 04:49:14 PM
GREGORY
Town & Country Ford Inc
Charlotte, NC
(704) 536-2131 We had one too, diff assembly fixed it. Before the diff the carrier, ring and pinion and driveshaft were replaced.

May 30, 2016 04:00:49 PM
marshall
Ford of Port Richey
Port Richey, FL
(727) 868-9545 We had guy complaining about a vibration also. Before replacing the rear diff. we replaced 2 drive shafts, rebuilt the diff 2 times, and then we let the customer test drive multiple diffrent like mustangs before he found the one he wanted. We took the diff out of that one and put it in his. FSE was out here a handful of times trying to fix it.
May 31, 2016 08:02:54 AM
Ryan
Flammer Ford of Spring Hill
Spring Hill, FL
(352) 686-8255 A 3.31 rear will have a boom noise/vibration or both. I had a convertible with 700 on the clock and it's worse in those. FSE agreed after driveshaft and both axles replaced as per hotline to replace entire center section. That fixed it. Compared to another 3.31 on the lot - had the same concern, just a bit different due to it being a coupe.

May 31, 2016 08:52:30 AM
Ryan
Flammer Ford of Spring Hill
Spring Hill, FL
(352) 686-8255 i smell a customer satisfaction recall/tsb

Hmmm, maybe that is why the vibration comes back on some of these cars- it is a combination of DS and diff. Balancing the DS gets it to acceptable levels but as the diff components wear, the vibration returns but from a different source... Just a guess. FSE worked on my car twice and used the vibration analyzer but didn't record any levels on my paper work.

 

[Cobra Jet]

A "vibration" concern is entirely open to interpretation. A vibration for one person may be unperceivable to another, and vice versa. That is why all of these "vibration" complaints are invalid until someone can provide some factual data to support their complaints. I find it very hard to believe that with all the people in this thread complaining about various vibrations that not a single dealer has verified the concern with a vibration analyzer and provided readings.

Without readings, it's impossible to know if one person's vibration concern is a result of excessive tire road force while another person's vibration concern is the result of a faulty axle, differential, driveshaft, flange, or any of the other multiple rotating components on the vehicle. There is also the forum/internet mentality that caused people to become convinced that their vehicle has a problem based on the complaints of others.

So once again...I ask...does anyone have a valid vibration analyzer reading? If they do, I can tell you the possible causal components of the vibration, and help with isolating the root cause.

I know this thread is huge and maybe not all posts are being read - but with all due respect, many of us who have had the cars "analyzed" were at shops where in fact the vibration analyzer was in fact used. I for one can vouch for that, As I even had posted about it in my numerous responses in this very thread.

Do I have the read outs? No - they were not given to me and they were not documented in that respect on my original lengthy invoice/work order.

Where they documented internally or through verbal conversations between my Service Center, the FSE who visited the Service Center or via the multiple conversations with the Ford Engineering Team - it could be possible, but that exacting information was not relayed to me.

I do know they had to use the tool and it did measure readings as I was told - but exactly what the readout produced, that info was not told to me from a tech standpoint.

Many others in this thread have also had their Service Centers use the vibration analyzer tool - many have said that even AFTER the tool was used AND the vehicle was "fixed" via "X,Y,Z" methods or replacement of "A,B,C" parts, there were still issues (or there have been repeat visits back to the Dealer) until the vibe was corrected by [insert whatever part/method fixed it here] happened...

So, even IF there were certain vibration analyzer readouts or specs - it doesn't seem like that tool is THE end all for a 100% fail safe corrective action or replacement of [insert whatever here].

I see the problem as being:

1) Piss poor quality control

2) Cheap, Inferior or junk parts being manufactured by X-Vendor or drivetrain Supplier.

3) Poor oversight of making sure that once X-assemblies or parts are assembled on the build line that they ARE within exacting specs of how that specific assembly IS supposed to be spec'd according to the books. Not just blatantly slapping shit together and calling it a day.

4) Poor documentation of the issue being relayed or NOT relayed back to Ford Corporate, "Ford Tech Forums", OASIS, and or any other proper method of communication when there IS an issue as large as this concerning owners.

5) No proper "road testing" being performed by Ford Service Centers to understand the vibration claims by vehicle owners.

6) Lack of skill set(s) by some Ford Techs at the Ford Service Centers who do not know how to use the vibration analyzer, do not know how to make proper diagnosis and/or are not able to pinpoint exact areas of concern.

7) Misguided diagnosis reported back to the Ford Service Center Managers - where in the common reply back to the customer is: "That is a normal characteristic of the Mustang"... When it's total BS.

You seem to be a Ford Tech that has a lot of responses in certain threads on here - so I'll put this out there for you:

Why don't you post up the list of Vibration Analyzer values and to what possible part that value refers to as being at fault?

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