Originally Posted by fix
Im not to sure how to post anything on here but I have and 07 f 150 and it runs rough when at an idle. I hsve a check engine light that comes on and then blinks when I try to give it gas. And when I let go it goes back to solid can anyone explain to me what that could be from. Thanks.
Blinking means a misfire is detected, steady means your 02 sensors are reading an improper fuel mix, which is probably due to a halfway working coil and/or spark plug.