I have developed a low rpm studder in my 4.6 expedition. I have 106,500 miles on it and it runs fine except for a low rpm studder in cruise control. I also can feel it losing power when i floor it??????????? but not much it still runs well


anyone got any idea what's up with it...............



please let me know

 

hey i actually made a video on the way to school the other day...

mine does the same thing..

there is a slow @$$ train that goes by the campus and i always get stuck..

i notice when i park @ 1000 RPM it start to shake...

but if you go to 900 RPM or 1100 RPM it goes away..

i made a video to post on here later but i havnt had time..

i figured it might be from my magnaflow exhaust or something..

i would love to know what causes it...

 

but it's acting like i have bad gas?? not me LOL jus the truck so i'm doing the fuel injector cleaning thing for a couple tanks or so to check it out


dan

 

mine idles fine too.

its when i hit the gas and hit 1000 RPM it shutters badly

should have been more specific...