2014 Fusion 2.0L Transmission Stutter

[Jake692]

I have a 2014 Ford Fusion SE FWD with the 2.0L turbocharged ecoboost engine.

 

The transmission seems to stutter in third gear under heavy acceleration, but doesn’t seem to happen with normal acceleration.

 

I have noticed that it only becomes an issue in third gear and has never happened in first or second gear. It usually occurs somewhere around 60 mph or about halfway through third gear, but i think the revs and current gear are more important to the issue than the speed.

 

Yesterday, I tried leaving my foot glued to the floor while the issue occurred because I was curious what would happen since I usually just let off the gas and accelerate calmly and to my surprise, it happened until the engine issue light came on and flashed for about 20 seconds before going away and turning off completely. The light did not return, but the issue has not been resolved and I can only assume it would happen again if I tried, but I don’t want to damage the car. I think I noticed a slight cut in power after the engine light started blinking, but i could be wrong. Though, whatever cut in power I may have felt went away after the light stopped blinking.

 

My car has been doing this for a couple months, but I try to avoid causing the issue to happen as to not damage the car. I must also mention that the car has not always done this in the two years of ownership. This has only been an issue in the past couple months and I change my oil and oil filter regularly as well as having no other issues with the car except for this.

 

If anyone knows what is wrong or has a theory as to why my car is doing this, I would greatly appreciate a reply. Thank you. :)

 

[drolds1]

With the CEL flashing and what you term a "stutter," I'd say you got a misfire under load.  There should be a code retained in the ECU's memory, and my advice is to take it somewhere to have the code read.   Some auto parts stores will do this for free, e.g., Autozone.  Or go straight to a dealer or trusted repair shop. You should do this sooner than later, as driving with a misfire can damage your catalytic converters and that will get expensive to correct.