Vehicle randomly decelerates when accelerating, rough idle, bad fuel mileage, almost the way it feels when running out of gas. I have replaced MAF and CAM sensor, throttle body, and a new PCM, fuel filter. Ford had a recall on this year's 5.4L engine that was not done on my vehicle, so when changed the PCM. After replacing PCM, it still continues to stall/hesitate when accelerating. We have checked fuel pressure and it was right. 90% of the time only does it after going high speed, when I have to stop (coming off interstate) it stalls or hesitates. But before the PCM was replaced it was anytime the vehicle stopped or idled for a few minutes. Never threw any codes until last week, then replaced the PCM. Everything is clear and scanner showing that everything is working properly. It is not.
have the same problem?
Tuesday, July 3rd, 2018 AT 9:56 AM