2012 GT automatic tranny leaking? - Mustang Evolution

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Old 01-13-2012, 03:10 PM   #1
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I took my stang into the dealership for my complimentary 1st oil change and found out that the transmission has been blowing out fluid. It's a 2012 5.0 auto with 4800 miles on it. Ford said thy would repair under warranty and gave me a rental car. Anyone have any ideas? Car is basically stock with exception of axle backs.
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Old 01-13-2012, 04:01 PM   #2
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Re: 2012 GT automatic tranny leaking?

Oh but, how is this possible, the automatics take 1000 horsepower unmodified forever, according to this board...

Glad they're doing right by you and fixing it. Axlebacks ain't gonna do jack to caue this.
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Old 01-13-2012, 04:41 PM   #3
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It happens..you are like the first person i heard of issue with sn auto.

And do some research. The autos are handling twice as much power as the manuals with no issue.
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Old 01-13-2012, 09:33 PM   #4
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Re: 2012 GT automatic tranny leaking?

Yep and, I'm sure they'll go 100,000 miles with 2-3 times the stock power output, yep...no problem.

You know, it's a bit different being Livernois shop car or whatever, it doesn't have to get anyone to work the next day. Blows up? whatever, go to the shelf and chuck the nearest aftermarket solution you got sitting around. It's the cost of doing business selling millions of dollars of hot rod parts to regular paycheque guys who are going to have to pay themselves for the stuff they break.

I know I'm not going to convince you of anything here but, that's what I think, nonetheless.
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Old 01-13-2012, 09:59 PM   #5
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I am just going from experience. From the guys i hang with and race with. From friends with these set ups. People i share info with etc on a personal basis.
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Old 01-14-2012, 08:11 AM   #6
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Re: 2012 GT automatic tranny leaking?

Gotcha, I'm not denying that the autos are faring better than the manuals under mods, so far. I'm just saying it's reality that these cars are 1-2 years old at most and we don't know what these car's will be like in 5 or more. From experience and acknowledging the massive power capabilities evident here, I can pretty much guarantee you that anyone pushing decent blower power through these things regularly, will be on another trans, regardless of which one they had to begin with. This is particularly true if racing.

Companies can't afford to build in 100% blowup margins any more. Finite element analysis and CAD are used to build them just a touch stronger than needed. That's great for meeting customer expectations on a stocker, gas mileage and reducing weight, not so hot for durability over the long haul.

The trans, whether manual or auto, is usually the fuse in the driveline anyway. The rear end, being pretty simple, typically takes stuff well and no company wants a rep for blown engines so, good margin there but, you'll notice looking around the industry, trans is where the problems reside, for many manufacturers.

It's kind of like that knob who believed the sales manager when he said he could tune his car and put nitrous on it and there'd be no warranty issues. Whatddyaknow, ka-boom and waaaaaaaa...hardly unpredictable.
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Old 02-14-2012, 10:36 AM   #7
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Re: 2012 GT automatic tranny leaking?

I have a similar issue with my V6 Auto 2012 after taking it in for its first oil change at 4,900 miles. Posted here (accidentally in the GT area) 2012 V6 Auto Tranny Leak

I'll update my thread when I get details about the cause. I wonder what the cause was for this GT Mustang.
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Old 02-14-2012, 11:59 AM   #8
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Hey man. The dealership told me there was a TSB on the automatic transmission for the new f-150's that has now been extended to the mustangs. The technician said it was a problem with the pump on the transmission. They replaced it under warranty and so far no new problems. I was shocked to find mine to be an issue when I took it in for the oil change. Good luck with yours!
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Old 02-14-2012, 06:51 PM   #9
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Re: 2012 GT automatic tranny leaking?

Thanks for the update, I feel better prepared what to expect when I pick it up in 30 minutes. I'll be surprised if the repair doesn't match up to that pump TSB.

I really want to take care of this car, paint and mechanical. So I hope to get a full report of what was repaired, parts and everything. And if it it was the pump, a print of the TSB 11-8-4. Though, I don't like the idea of major working being done to such a new car, cause who knows what might happen if it the shop work isn't up to par as the factory.
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Old 02-14-2012, 07:19 PM   #10
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I feel the same way. I was a little upset when my brand new car had tranny problems. The technician assured me that there was no damage to the tranny and it was definitely due to the TSB. Hopefully no more issues with this car! Let me know what they say, im curious if it's the same issue.
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Old 02-14-2012, 08:15 PM   #11
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Re: 2012 GT automatic tranny leaking?

Replacing the "pump" in an auto tranny requires full disassembly, if this is like most others. Front pump blowouts are often power related. Push too much power through the torque converter and the pressure gets mega-high and blows out the pump seals.
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Old 02-15-2012, 07:03 AM   #12
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The tech said he had to take it completely apart. He had my car for 4-5 days. So it probably was the front pump.
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Old 02-15-2012, 10:12 AM   #13
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I know there was a tsb for auto tranny. But from what remember it had to do with solenoids
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