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2011+ V6 Mustang Tech Forum

2011+ Talk | 2011+ GT | 2011+ V6 | 2005-2010 Talk | 2005-2010 GT | 2005-2010 V6 | Shelby GT500 | Mustang Tech 
 

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Unread 04-20-2012   #1 (permalink)
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Default 2012 Mustang V6 Driveline Vibration when letting off gas

I have a 2012 grabber blue v6 mustang with the performance package, and it is certainly a great car. I have several minor complaints with it though. The minor one is that the v6 doesn't have good low end torque but the main problem I have is that, when I let off of the gas, whether cruising or accelerating, there is a vibration through the driveline that I can feel when I grip the stick and feel through the body of the car. I'm currently away at college and will be home in several weeks, so I was going to bring it into my local dealership to have it checked out. The only thing I can think of is that there is possibly a balancing problem with my engine? What do you all think? I've never had a V6 before, my first car was a 65 with a 289HiPo V8, but I have heard that v6 engines are less balanced than an 8 or 4 cylinder because of their geometry, but I don't think something like that could contribute to as great as a vibration as I am feeling. What are y'alls opinions?
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Unread 04-20-2012   #2 (permalink)
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Ford made a bad call and put a two piece flywheel in there.

It has a resonance around 2500 RPM.

Your dealer can't do anything about it because ford calls it normal operation.

You just have to shift or give it some gas to avoid the problem.
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Unread 04-20-2012   #3 (permalink)
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Quote:
Originally Posted by tstancredi View Post
I have a 2012 grabber blue v6 mustang with the performance package, and it is certainly a great car. I have several minor complaints with it though. The minor one is that the v6 doesn't have good low end torque but the main problem I have is that, when I let off of the gas, whether cruising or accelerating, there is a vibration through the driveline that I can feel when I grip the stick and feel through the body of the car. I'm currently away at college and will be home in several weeks, so I was going to bring it into my local dealership to have it checked out. The only thing I can think of is that there is possibly a balancing problem with my engine? What do you all think? I've never had a V6 before, my first car was a 65 with a 289HiPo V8, but I have heard that v6 engines are less balanced than an 8 or 4 cylinder because of their geometry, but I don't think something like that could contribute to as great as a vibration as I am feeling. What are y'alls opinions?
It is completely "normal" for it to do that. I have a manual and i can make it do it all the time. Between 2500-3000 RPM if you let off the gas it will vibrate like crazy.
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Unread 04-20-2012   #4 (permalink)
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Got the same basic car as yours..While maybe not 2012 V8 torgue..IMO It starts to pull as early as 2k is waking up nicely at three grand five hour energy at four and a 6 pack of red bull by 5 grand..I avoid any deceleraration nonsense (from the dual mass flywheel) in the neutral gate cost mode..Good luck with yours..I ve had GREAT luck with mine..Watch them State ys on Rte 1..!! FNGFOG
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Unread 04-20-2012   #5 (permalink)
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Okay, that sounds like the problem that I am having, but may I ask, why does a two piece flywheel cause this to happen?
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Unread 04-20-2012   #6 (permalink)
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Unicorns in the bell housing poking and jabbing at the flywheel hence the dual mass .... Who's been drinking, this guy.
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Unread 04-20-2012   #7 (permalink)
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Quote:
Originally Posted by lcurle View Post
Unicorns in the bell housing poking and jabbing at the flywheel hence the dual mass .... Who's been drinking, this guy.
LOL

15 char....
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Unread 09-18-2012   #8 (permalink)
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Default viabration v6 2012

Hello i just bought a new mustang also, v6 kona blue.. beautful car, but since i picked it up from the dealer it had a viabration with only 2 kms on it when i got it??? Was it tested??? It looks like it came off the assembly line on the truck to the dealer, then off at the dealer and then to me??? I guess no test drive?? I think Ford knows about the problem, just don't know how to fix it yet????Viabration will wear and things will start to break????Where do we go from here????
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Unread 09-20-2012   #9 (permalink)
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Quote:
Originally Posted by fhonaizer View Post
Hello i just bought a new mustang also, v6 kona blue.. beautful car, but since i picked it up from the dealer it had a viabration with only 2 kms on it when i got it??? Was it tested??? It looks like it came off the assembly line on the truck to the dealer, then off at the dealer and then to me??? I guess no test drive?? I think Ford knows about the problem, just don't know how to fix it yet????Viabration will wear and things will start to break????Where do we go from here????
Hello fhonaizer,

I recommend you bring your vehicle in to your Ford dealer as soon as possible to have these concerns diagnosed. Then if you need further assistance, you should contact Ford of Canada at 1-800-565-3673.

Deysha
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Unread 09-20-2012   #10 (permalink)
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Quote:
Originally Posted by fhonaizer View Post
Hello i just bought a new mustang also, v6 kona blue.. beautful car, but since i picked it up from the dealer it had a viabration with only 2 kms on it when i got it??? Was it tested??? It looks like it came off the assembly line on the truck to the dealer, then off at the dealer and then to me??? I guess no test drive?? I think Ford knows about the problem, just don't know how to fix it yet????Viabration will wear and things will start to break????Where do we go from here????
yea there is a fix, a carbon fiber or aluminum one piece drive shaft and an aluminum flywheel
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Unread 09-20-2012   #11 (permalink)
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For what it's worth, I have a similar issue, it started after I money shifted from the top of 2nd to 3... wait, no, first. Overspun the engine I believe. No issues and nothing nasty in the oil, but I started to get a vibration when letting off the gas around this rev range in the lower gears usually.
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Unread 09-20-2012   #12 (permalink)
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between 2 and 3000 rpms right?
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Unread 10-30-2012   #13 (permalink)
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Hmmm..... VERY interesting.

I have a V6 w/Auto that STOPS vibrating when I let off the gas. Looks like a separate thread is in order for my car's issue.
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Unread 10-31-2012   #14 (permalink)
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All you guys with manual transmissions just need to never let off the gas, then you won't get the vibration...
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Unread 10-31-2012   #15 (permalink)
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Quote:
Originally Posted by Ltngdrvr View Post
All you guys with manual transmissions just need to never let off the gas, then you won't get the vibration...
Mine has a vibration while stopped
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