Hey guys my 05 f150 5.4 with 76,000 has a weird rumble at idle, I don't think its a miss and there's no codes and when I put it in park it goes away or if the idle changes just a little you don't feel it. And you feel it through the brake pedal the most its not real bad butb enough to bother me. Do any of you guys have any ideas

 

No one has ever come across this same prob?

 

Even turning on the ac is enough to make it go away

 

Have you ever cleaned the massairflow sensor or throttle body? Does you rpms jump around at idle? If turning on the ac fixes it,its because the ad kicks the idle up. I'm betting cleaning those I mentioned will help.

 

Yea I will try that and no it doesn't jump around at idle

 

Well cleaned the mass air flow sensor last night and cleaned the throttle body still has the rumble