I've noticed the same performance except my good numbers are still down 4mpg from what they were. High humidity not only causes the falling on its face problem but it does affect mpgs too. Had two cool rainy days in a row this past week and my current tank average is down to 13.8 now. Needless to say I am thrilled!

I am getting more worried all the time though what constantly sucking water into an engine does to it over time. Can't be a good thing

My guess is that over a certain humidity number, the intercooler starts causing condensation and it's just a matter of it sucking in a little at a time or all at once when you need to floor it to get around a semi on a two lane road followed by a need to pull over and clean your underwear because you almost just caused a six car and one semi truck pile up!

 

Last week I drove on at 1,500 round trip from Houston, Dallas, Muskogee, Joplin, Springfield, to Branson MO. 22 MPGs was the entire trips average. That includes stops in all those towns (cities), and a two night stay in Springfield (across the street from Friendly Ford LOL). Total mileage on the truck is now 5,300 and I am taking it in for the oil change, and see if there are any updates from the Ford Dealer – so far no updates have been performed on my truck.

On one section of the trip there is a fairly step section on hiway 65 heading north from Branson to Springfield – just a few miles north on the hiway 160 intersection. This steep section last about 1 maybe 2 miles. With the cruise control set at 65 the truck had the light surging (poo-chu at this fast speed the poo-chu was very fast paced and light – like fluttering), and very light engine misfire all the way to the top of the hill. It did stay in 6th with converter locked and you could hear the deep roar of the engine climbing the steep grade. On back side of the hill (1 to 2 miles), the cruise control maintained speed under 70mph and dropped to 3rd gear, with RPMs about 4,000 to 5,000. I imagine without the third gear hold back the truck would have gone over 100MPH? Point being the long hills were very steep. The truck had only been driven about 10 miles on hiway 160 (around 50mph) before heading north onto 65 to Springfield. That long downhill high RPM, must have sucked all the water out, it never fluttered, missed, or surged again on the trip. Again I suspect condensate in the solenoid control to the turbos.

If this google map link works, I think this is the long section of hiway I was on:

http://maps.google.com/maps?q=Branson,+MO&hl=en&ll=36.782916,-93.22446&spn=0.01325,0.01929&sll=37.0625,-95.677068&sspn=52.815565,79.013672&oq=branson&t=h& hnear=Branson,+Taney,+Missouri&z=16&layer=c&cbll=3 6.782916,-93.22446&panoid=kiac-i7OB9kA82ERc_52cw&cbp=12,357.84,,0,0

So far my Ford Dealer has been non-responsive to the problem.

Now this is a strange one: with about 4,700 miles on it, the SYNC just volunteered to send in a Vehicle Health Report – It is Not set up to do that! I double checked it twice. I think Ford is spying on me LOL

Has that happened to anyone else?

 

Taking mine in tonight, my mouth is sour from this lemon taste. If ford cant fix it i'm shooting for lemon law. Anyone else have a weird noise the first couple times after the turbos spool and you let off?

 

Everyone make sure you file a complaint with the nhtsa and also email them. If we keep complaining and emailing someone might look into it.

 

The NHTSA isn't gonna make them take my truck back, which is the only option at this point in the game. I cannot stress enough, if you can still lemon law the truck, DO IT! Ford keeps making excuses and telling us a fix is coming. While you're listening to their excuses and waiting for that fix, your chance for a lemon law claim could be eliminated by time or mileage. DON'T play Ford's game. They already got their money from you and they will do whatever it takes to keep it. Get out of their court and make them play your game (the law) in your court. When their back is against the wall, looking at thousands of buy backs costing them upwards of $100,000,000 they WILL do something. I think most of us have been more than willing to give Ford a fair chance. During that chance they have made excuses of tires being out of balance, can not duplicate, all the way to calling our problems "normal".

The dealerships and Ford have played dirty pool and yet we are still expecting them to do the right thing? The only person who is gonna do what is right for you is YOU.

 

Yeah no doubt about lemoning the truck, thats why i'm going to keep taking it in. In the mean time nhtsa can put pressure on them about fixing it and bring media spotlight to the issue just like they have with the chinese mustang tranny.

 

FWIW (and it’s not worth much), My Ford Dealer says they are told they cannot do repairs unless it actually throws a code.

 

You will only get a CEL from a misfire if the inferred Catalyst temp gets to high. This is calculated based on frequency of misfires over a period of crank revolutions and the engine load. The higher the load, the less misfires are required to throw a code.

If you take your foot off the gas upon a misfire you probably won't get a code. If you keep the engine under load under a misfire (i.e. trying to avoid getting rear-ended) it is more likely to throw a code.

Once the code is thrown, the engine will also go into a catalyst cool-down mode where it will run on part cylinder operation for a period of time (10-30 seconds?) which will vary depending on the inferred catalyst temp. This will feel like you are running on 3 cylinders. Once the Catalyst cool down is complete everything will go back to normal and the CEL will turn off, but the DTC will be logged.

 

Apparently these instances are not being logged. Mine never threw a code, but several others have had the check engine light flashing, they bring it to the dealer, and they find no stored codes.

Talked to a guy across the street from my office yesterday who bought an Ecoboost in April. He asked me how I liked mine(bought last September) and I said I like it but theres a few issues. First thing out of his mouth was if it had fallen on its face during hard acceleration. His did it within the first 1000 miles of ownership. He also doesn't follow forums like this to know there are several trucks experiencing this.

 

I believe that if a certain number of drive cycles occur without a repeat of the misfire, then the code is deleted. The last time it happened to me I was on my way to the dealer traveling up a steep grade over a pass so I kept my foot into it until the CEL showed up and didn't turn off the truck until I got to the dealer.