2015 - 2023 Mustang GT (S550 - 6th Gen - 5.0L)
On my 2015 Gt when stopped the car will sometimes randomly start to idle rough up and down until I press in the clutch then the idle returns to normal, local dealer said no codes no help so not sure what else I can do. This happens every day or so at random times warm/cold doesn't matter. It...