09 mustang gt 5sp shifting issue - MustangForums.com



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Old 07-26-2014, 07:10 AM   #1
flavorman
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Default 09 mustang gt 5sp shifting issue

I have an 09 gt 5sp. When I go to pass a car or put my foot into it and down shift into third, it acts like a missed shift. It is in gear but it takes a second for the car to take off...and help would be greatly appreciated
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Old 08-04-2014, 12:46 PM   #2
TheDutchTexan
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Does the engine rev when you get on it in 3rd, but you don't go the way you are supposed to? If so it could be your clutch.
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Old 08-05-2014, 06:18 AM   #3
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No, engine does not rev, its the opposite x. It acts like it does when the traction control kicks in on takeoff
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Old 08-05-2014, 07:08 AM   #4
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Quote:
Originally Posted by flavorman View Post
No, engine does not rev, its the opposite x. It acts like it does when the traction control kicks in on takeoff
You sure it is not the traction control doing it?
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Old 08-05-2014, 09:17 AM   #5
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Quote:
Originally Posted by flavorman View Post
I have an 09 gt 5sp. When I go to pass a car or put my foot into it and down shift into third, it acts like a missed shift. It is in gear but it takes a second for the car to take off...and help would be greatly appreciated
Hello flavorman,

Welcome to the forum! My name is Deysha with Ford Service. You should speak with the service manager at your Ford Dealer. He is in the best position to ensure a proper diagnosis, and will be able to provide available options and/or coverage for any work needed.

You can schedule an appointment online here. Also, remember most repairs done at a Ford Dealer come with a 24 months/unlimited miles warranty.

Deysha
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Old 08-05-2014, 11:20 AM   #6
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Does it act like that on any other shifts.....especially when shifting enthusiastically?
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Old 08-06-2014, 06:11 AM   #7
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Only does it when diagnosing
Down shifting! When taking off from a start it shifts fine
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Old 08-06-2014, 06:35 AM   #8
CMcNam
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Turn off your traction control.
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Old 08-06-2014, 09:55 PM   #9
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There is a TSB for hesitation after cruising steady state that was associated with the fuel pump but I thought that was resolved after the 07 models.

TCS can cause a momentary loss of power going WOT so if it still happens with TCS off, then TCS isn't the cause. I've had those types of issues with TCS and am in the habit of shutting it off unless the roads are slick. Also, the stock tune can cause some drivability issues compared to a custom tune.
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Old 08-07-2014, 05:58 AM   #10
flavorman
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Have cold air kit, Diablo sport tuner and slp axle back.
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