07 GT transmission - Ford Mustang Forum
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post #1 of 3 (permalink) Old 4 Weeks Ago Thread Starter
Timboslice357's Avatar
Joined: Aug 2019
Posts: 3
07 GT transmission

My automatic transmission went out in D or R. 1-3 still worked. Having it rebuilt. Shop said it was completely done. 137k miles. Had some erratic shifts and clunking when shifting from reverse to drive over the years. I bought it new in 07 and have dogged it every day. In January I put on a CAI, XTC tuner and new exhaust. Otherwise it’s stock. I’m concerned the tune might have caused problems or finished it off. Any thoughts on if I should keep the tune on or remove it? Heard anything about this being a problem or did I just wear it out with my driving style? Thanks.

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post #2 of 3 (permalink) Old 4 Weeks Ago
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crjackson2134's Avatar
Joined: Sep 2015
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Three thoughts to throw out there for you...

1 - Welcome to AFM

2 - You posted in the wrong sections for an '07. This is the correct section in the link

3 - It PROBABLY wasn't the tune, but rather the totality of miles and being "dogged" as you put it. I would attribute your driving style to increased wear (best internet guess)

2014 Black GT Premium w/Track Pack - 401A - (Apocalypse)
2018 Black Nissan 370Z Nismo - (Lucille-2)
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post #3 of 3 (permalink) Old 4 Weeks Ago Thread Starter
Timboslice357's Avatar
Joined: Aug 2019
Posts: 3
Thanks! I’ll repost in the correct forum. I assumed it was just hard miles but was curious if there were others with tuner issues.
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