Largefarva

The Oasis message is for a completely different issue than the shudder issue.

coryclaassen

Reposted from earlier in this thread.

From Oasis:

Special Sevice Message Number:22225

"Some 2011-2012 F150 equipped with a 3.5L GTDI engine may exhibit an intermittant stumble and/or misfire on hard acceleration after an extended drive at highway speeds. These vehicles may or may not exhibit a steady or flashing mil light with misfire dtcs and/or P0430 stored in the PCM. These symptoms may be more noticeable during high humid or damp conditions. This concern may be caused by excessive condensation collectiong in the charge air cooler. Replacing secondary ignition components will not resolve this concern, refer to TSB 12-2-10. Engineering is investigating, continue to monitor oasis for further updates."
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coryclaassen

Why are you so sure it is a completely different issue? The OASIS message even references the TSB 12-2-10. If you read the TSB, it is a very similar (not identical) described issue. They seem the same or related to me???

Largefarva

The TSB is for the shudder issue. The Oasis message is referring to the issue that people are complaining about when stomping on the gas and the engine goes into limp mode (due to built up condensation in the IC being stripped away and sucked into the engine).

The TSB never mentioned anything about the hard acceleration and condensation in the IC.

At least this is how I'm reading it.

tlrich

Thanks Cory, I will print this out and hand to the service manager when he does the re-flash. I had to go to the owner of the dealership to get this done as no codes were found. This solidifies the point I was trying to make to them and the calls we made to Ford may and should get their engineers on the ball. I realize the TSB will not fix my problems buts its all they have right now.

coryclaassen

You don't think both symptoms could be from the same issue--just matters of degree? A lot of condensation causes limp mode on hard acceleration, a small accumulation of condensation causes shudder from wastegate fluttering due to some sort of interplay with the small accumulation of condensation??? I have no idea, they just seem very related. If the condensation issue is solved, maybe both symptoms will disappear??? Just my guess... I really have no idea.

All I know, is on my test drive today, when my truck did shudder, the tech noticed my wastegate fluttering on his computer screen. The wastegate is part of the turbocharge system, as is the intercooler mentioned in the OASIS message.

tlrich

So very true, I work in a refinery and we have several pieces of equipment that knocks moisture out like a self draining spring loaded p-trap. Not sure what the expense would be but they need to find something and will after deaths and lawsuits.

schrod

X 2 ! I would tend to agree that the waste gate fluttering could definitely cause the shudder. Much more likely than the ideas that the torque converter is not fully locked up.

canon_mutant

Got a call from my Ford Rep yesterday and she made arrangements for me to go back into the dealership to have my truck re-looked at even though the dealer didn't want me to because there are no codes and they don't know what to do? So, I'll have 2 out of 3 visits. This will at least help if I god forbid have to go the lemon law route. I also emailed her back about the Oasis problem report documented here and asked her to push the rope if she can.

Though "shudder" feels like a combination of events to me beyond just turbo condensation, eliminating turbo condensation would at least eliminate one variable and the most dangerous one.

Has always felt to me like:

1. Converter lock up in high gear at too low rpm
2. Instead of unlocking the converter and downshifting, the engine begins to lug under uphill grade load [or even heavy head wind load I've noticed]
3. Turbos and waste gates start arguing.
4. Condensation misfire?
5. Lather, rinse, and repeat

Anyone feel like that?

tlrich

I definitely think there is an issue of not unlocking and allowing the transmission to downshift properly, thats one reason I want the 12-2-10 tsb. It may not help for long but I did not get to train the tranny for my driving as it had 900 miles on it before I got it