CEL and Shutter Demons are back

[Junkyard_Mad-Scientist]

my experience has been best with amsoil severe gear, redline lightweight shockproof, bg, and valvoline OTS full synthetic, in descending order. long run, i'd probably stick with redline since it can be used in both ptu and rdu and performs quite well. one sku to stock.

I've seen the lightweight shockproof mentioned a lot on this forum, this is the first Ive seen it confirmed to run the same one in both rdu and ptu. if the amsoil is truely superior i dont mind buying 2 different weights, but i am intrigued to see what difference the shockproof would make, a lot of claims of noticeable differences. I plan to keep up with the changes between 25k and 30k, according to the ford service records its been done every 30k which is impressive considering im the 4th owner so each owner had it done on time.

 

[kryptto]

have the shutter stop at the ready if the problem comes back, my goal is to actually have the problem consistently enough to try 1 thing at a time to isolate the potential issue.

Great idea, I have a tendency of throwing the kitchen sink at a problem, like tue day I had hesitation when gunning at 20 mph and no response. Maybe just cleaning the intake map sensor was good enough, maybe the TC on was the base issue, now I don't have an issue took her for a drive last night. Wife and I enjoying the weather this time without TC, no issue, though I dislike our transmissions shift pattern/points.

So I replaced the coils to OEM and spent that costly amount to replace the Accel. Replaced the 3bar MAP, and checked the plugs and regapped. In the end why doesn't the car have the same issue...

Who knows could be a coil gone bad, maybe a plug or two gapped changed, though our computers compensate. Map sensor was fouled by the cleaning service or service damaged the sensors diaphragm? In short too many changes are less than satisfying.

 

[Junkyard_Mad-Scientist]

@kryptto The 13 explorer I had a couple years back was very hesitant when I would hold it WOT. it was a 2.0eb, aside from my feelings about that car when i would turn the TC off it was a different car, didnt pull any throttle, didnt care about tire spin (not that it was very good at it), it was literally easier to drive with TC off because with it on, it constantly acted like any amount of throttle could cause loss of control. likewise with my wifes fusion, only instead of TC it was driving it in sport mode to get it to act "normal" so now im wondering if that dead pedal hesitation is the traction control figuring out if it should allow WOT or not, i dont have the button so to scroll through the menu every time sounds like a pain but now you got me thinking lol

 

[kryptto]

I started living by this from the Owners Manual - NOTE SHO PP:

 

[Junkyard_Mad-Scientist]

the first 3 months of owning my car i was convinced it was a pp (because of the 20s and the multi contour seats) then i found out other tell tales that I didn't have, specifically the axle code. so non pp for me, but when i thought i had the rare bird (2013 pp with park assist and esc disable that the button was forgotten at the factory) I had every intention of buying the button and turning it off for everything but heavy rain and snow. little disappointed when i found out its a non pp, but I already love the car, its no less fun, and that gem green gets me every time

"if you dont look back at your car after parking it, you bought the wrong car" - no idea

 

[Kingsped]

Data wise there's nothing other than the o2 sensor (always a possibility), I have been swamped with home projects and working on my wife's work vehicle and then this weekend I was rained out. a few things on the horizon I am going to try are: checking the trans fluid, adding shutter stop, deleting the noisemaker, and as soon as I have some extra cash I'm going to buy a motorcraft throttle position sensor and swap it as a just in case. both throttle PIDs on forscan did not show any signs of it being the cause of the shutter but I haven't been able to catch it when the pedal goes dead. I'm leaning toward torque converter since that seems to be a real common issue with these cars and maybe I just caught it super early to where the symptoms aren't as noticeable. Ill post an update as soon as I do the few things I already listed.

Thanks for getting back to me, I'm going to be putting a new TC in mine next week I'll let you know how it goes I'm having the same exact problem you are describing and nothing else has helped it including the shudder fix and fluid changes back to back to back..
Good luck and I'll keep you posted on my situation maybe it will help you also.