2015 Expedition ecoboost shutter at light

[johnnytx]

Good morning all. I know yall are busy so ill make it as quick as possible.

2015 expedition 3.5 ecoboost

While sitting at red lights there is a shutter. I've changed the throttle body and it still is doing the same thing.

Any suggestions?

 

[99WhiteC5Coupe]

Good morning all. I know yall are busy so ill make it as quick as possible.

2015 expedition 3.5 ecoboost

While sitting at red lights there is a shutter. I've changed the throttle body and it still is doing the same thing.

Any suggestions?

Do you mean a shudder?

Do you have OEM spark plugs and what are the mileage on them?

Miles on the vehicle?

Perhaps run a tankful of Techron fuel system cleaner according to label directions?