so I have had this problem for a while, but in the last few days its got BAD.
My car is stumbling at idle, when in gear:1,2,D,OD and Reverse but not in N. Occasionaly under full throttle it stumbles, and sometimes when im riding and let off the gas and push it back in, it seems to slightly jerk.I am getting suck *** gas mileage. I have cleaned the TB and the IACV. I have no CEL and have had my computer checked by my buddy at ford, neither show anything. I was thinking coilpacks but evidently not. Any have a clue what this may be? I am completely stumped, 2 mechanics are like WTF

 

Check your plugs. Also check your injectors to make sure they are firing, one could be going bad, and on top of that double check the resistance on the coils. The coils may not throw a code but could act up when the resistance starts going crazy.

 

ive pulled the plugs, the looked fine. i still regapped them. i dont know how to check the injectors. I heard that you can take coils to autozone and they can check them. Is that true??

 

If they've never been, just replace all the coils. I tried to go the cheap route and swap around the coils to try and find a bad one(s), but I found 6 new coils on ebay from a seller named uneeksupply for $180. They are either real or knock-offs because they are stamped with the same number and manafacture as the OEMs. But they work great and the Max is running strong and smooth!

 

I think you have a half *** coil thats on its way out. i've never heard of autozone checking them but might as well call and find out. If they do check they'll prob just check resistance which isn't exactly conclusive