I have done some searching here but didn't come up with too much on the NA 3.5 and this issue. I did see someone state they may have had a clogged injector and injector cleaners helped. But here is what we have going on.
Truck has about 150k on it and a little over a year ago a coil pack went bad and we had code. I replaced the bad coil pack and installed new plugs. The problem was gone. Then I started to notice a weird stutter or miss. It almost always happens under partial throttle, when it is happening we can get right on it and it seems to go away. I think it is more prevalent between 40-50mph and possible happens more on tip in or out on the throttle. I have tried forcing it to happen a lot on a drive hoping a code would be thrown but nothing comes up, not even a pending code in FORSCAN.
I have tried injector cleaning and I did not see a change. Maybe it needs a stronger cleaner, so if someone has a suggestion I will give it a try.
Short of the injector cleaner working, does anyone have any ideas? I hate to shotgun parts but I almost feel like that is my only choice at the moment. I was thinking with 150k on the clock I am due to replace O2 sensors so I was going to start there. Then maybe coil packs and plugs. Possibly MAF sensor, but what kills me is I think this should be throwing a code no matter which one of these is causing it. So has anyone had something similar?
I have the same problem with my ford edge a guy told me it was my torque converter flap or something but my car drives fine just the stuttering between 40-50mpg.Then I had another person tell me it’s the computer that he had the same problem and he changed his computer and it drove perfect for 4 months then started back doing the same thing. I’m lost if you have figured anything out please let me know and thank you
2011 3.5 with stutter or miss
in 3.5L
Posted
I have the same problem with my ford edge a guy told me it was my torque converter flap or something but my car drives fine just the stuttering between 40-50mpg.Then I had another person tell me it’s the computer that he had the same problem and he changed his computer and it drove perfect for 4 months then started back doing the same thing. I’m lost if you have figured anything out please let me know and thank you