BrinkExpo
Well-Known Member
Hey guys I have an 06 Expedition with 155k on it. I just did the plugs and 3 coils 10k miles ago.
The truck runs great but under WOT at 3500rpms it stutters and then it winds out good after it gets past the stutter. If I hammer down and it downshifts higher than 3500rpms it doesn't stutter. If I do anything less that WOT I don't get the stutter.
When it was bad coils, I would get an engine light and stutters under load at low rpm and high rpm.
No code has been thrown.
Does this sound like a fuel filter, cat converter or injector? Any ideas?
The truck runs great but under WOT at 3500rpms it stutters and then it winds out good after it gets past the stutter. If I hammer down and it downshifts higher than 3500rpms it doesn't stutter. If I do anything less that WOT I don't get the stutter.
When it was bad coils, I would get an engine light and stutters under load at low rpm and high rpm.
No code has been thrown.
Does this sound like a fuel filter, cat converter or injector? Any ideas?
