gt 5.0 auto transmission problem - Ford Mustang Forum
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post #1 of 20 (permalink) Old 06-26-2011 Thread Starter
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gt 5.0 auto transmission problem

Hi i have an automatic 2011 mustang GT and I’m suffering from the transmission. The gear makes huge shock wile every changing from the first to the second gear only at low speeds like when driving 0-10 mph in the traffic. so what i do to avoid this problem is to put the gear in the 2 mode to avoid the shock every time.

Is that a problem or just normal thing in all 2011 Mustangs gt??
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post #2 of 20 (permalink) Old 06-26-2011
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no, take it in to the dealer

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post #3 of 20 (permalink) Old 06-26-2011
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Quote:
Originally Posted by scott_0 View Post
no, take it in to the dealer
What this guy said!

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post #4 of 20 (permalink) Old 06-26-2011
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Is the car stock or have you used a tuner on it?

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post #5 of 20 (permalink) Old 06-26-2011
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I'm not saying you drive like this. But sometimes people rest their left foot on the brake pedal, and it drives these autos crazy. It probably just needs an adaptive drive cycle to relearn normal.
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post #6 of 20 (permalink) Old 06-27-2011 Thread Starter
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my car is stock, now it's done about 10,000 Miles.
i never use my left foot while driving anyway.
the only way to adapt with this situation is to accelerate a little bit faster like to make the automatic shifting from 1st to 2nd gear after crossing 2k rpm which is not possible in some traffic off course ,
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post #7 of 20 (permalink) Old 06-27-2011
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Some of the early Raptors had this problem . The dealers re-flashed the tranny and all is well according to the owners .
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post #8 of 20 (permalink) Old 06-27-2011
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I don't have this problem, take it in for service

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post #9 of 20 (permalink) Old 06-27-2011
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Quote:
Originally Posted by essaassassin View Post
my car is stock, now it's done about 10,000 Miles.
i never use my left foot while driving anyway.
the only way to adapt with this situation is to accelerate a little bit faster like to make the automatic shifting from 1st to 2nd gear after crossing 2k rpm which is not possible in some traffic off course ,
It's called an adaptive drive cycle. It's done at the dealer.
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Some of the early Raptors had this problem . The dealers re-flashed the tranny and all is well according to the owners .
The Mustang tranny is controled by the PCM unlike the truck trannys that have their own computer.

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Quote:
Originally Posted by essaassassin View Post
my car is stock, now it's done about 10,000 Miles.
i never use my left foot while driving anyway.
the only way to adapt with this situation is to accelerate a little bit faster like to make the automatic shifting from 1st to 2nd gear after crossing 2k rpm which is not possible in some traffic off course ,
OP- I had a similar problem, and realized it was due to the above. I was used to driving a huge german sedan, and I didn't initially satisfy my mustang's thirst for... aggression! I attributed my car's behavior to driver error, and have since fixed it... Good luck!

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post #12 of 20 (permalink) Old 07-06-2011 Thread Starter
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thanks alot guys.
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post #13 of 20 (permalink) Old 08-09-2011 Thread Starter
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update, I made the adaptive drive cycle at the dealer but the issue is still on.
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Mustang auto transmission "clunk"

My 2011 GT has the same problem, been to 2 different Ford dealers, both say it is normal. Second dealer reflashed the computer.

It drives me crazy. I have people in the car and they all comment "what's wrong with your car?".

Call Ford "no" service line and they gave me a case number, and I took it to their recommended dealer. We went for a ride in my car, and another 2011 the dealer had. Both cars sound the same. Put both on the lift, issue in my opinion is the lash in the transmission. The Dealer's car and mine were identical. I have not taken a 2012 for a ride to see if Ford as rectified this "normal" condition.

So after 15 years of mostly buying Japanese cars I go American (I love the car other than this), I am regretting it. Best part about it, now the carfax has 3 dealer visits on it for the same problem.

Any suggestions anyone?
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Quote:
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been to 2 different Ford dealers, both say it is normal.
this seems to be the Ford default response to EVERY complaint on these cars

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