Ford Mustang Forum - View Single Post - 2014 GT stumble at idle - should I be concerned?
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post #1 of (permalink) Old 01-18-2016 Thread Starter
TheJMan48
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Joined: Apr 2014
Location: Anthem, AZ
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2014 GT stumble at idle - should I be concerned?

I've got a 2014 GT with about 22K miles on it that for awhile now has had a stumble at idle that is most noticeable when the engine is warm. It hasn't set off the CEL, the throttle response is still good and the car otherwise drives normally. It doesn't sound like a traditional misfire where you can audibly hear a pop and feel the car shake, it's more of a "pfft" sound.

Is this something that I should be concerned about? I've run a can of Techron fuel system cleaner but it didn't change anything. Car is stock aside from Roush axleback and Pypes after-cat X-pipe.

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