chlngfyo2

I'd like to thank all the helpful people an apologize for lashing out, Maybe the 10 5.4 i traded on this was a bad ***. Ive owned an used alot of truck's an this truck is not what it should be! Luckily the sales dept is more helpful than the service dept but its still wasted money. All i hear from the serv dept is intercooler been changed an all updates are done its me?

AMK

I have had my 2012 XLT 4X4 for a little over a year and 20K miles. It started giving me problems at around 4K miles with a hard shudder and engine miss on light to moderate acceleration between 40 and 60 mph. I have taken it to 2 different dealers and had 3 different "fixes" performed starting with the new CAC, deflector shield and PCM reprogram. I've since had a turbo pressure sensor and TIP sensor replaced and 2 more updates to the PCM.

I had never experienced the complete loss of power that others have described until recently. On a long, rainy hwy drive, I floored it on an on-ramp. The engine revved to 6000+ rpms but had no power. The truck was shaking so bad, I thought it was going to come apart. No lights and it seemed to run normally for the short distance I had left to go.

I took it straight to the dealer the next day to check for stored codes - nothing, and I was told that there was actually a new TSB out (sorry, don't have the #) that basically says if all other TSBs had been done, do nothing - Ford is working on it. The Service Mgr recommended I call Ford.

So far just a few frustrating calls with Ford as the regional cust svc rep asks me the same questions over and over. I want to give Ford a chance to make it right, but I'm skeptical based on what others have reported.

I'm really disappointed in Ford on this one. I love my truck by really wished I had chosen the 5.0 V8.

MadocHandyman

Some of you that report you had the loss if power issue but it revved to 6000 rpm, are you sure it wasn't the traction control?
I don't understand how it would lose power and yet rev so high.
Or does it rev to high rpms then go into limp mode?
The only time I've gone into limp home mode was when my transmission sensor went. It stayed in 3rd gear and only revved to a certain rpm. Not very high either that I remember.

jayandsam09

There were times that mine did it... Like the 6th or 7th occurrence... And I floored it to try to blow it up to be honest. I have video of the truck shaking so hard that my watch spun upside down on my wrist with me trying to hold the wheel so I'd stay on the road. Obviously not in traffic. But the tach read over 5,000 rpm

RonD

I know people have speculated its the traction control. It's not the traction control cutting power, atleast it's not a typical loss of traction issue. When the shaking happened to me, I let up on the gas. Since I was slowing in heavy traffic I gently got into the throttle, but it still had the shake and loss of power. I kept "peddling it", letting up the gas and easing into it (trying to get it to "catch"), and it just gradually got better over a time period of 20 to 30 seconds before it ran smooth. It seemed more like a very rich/flooded engine condition causing a bad miss/stumble with severe shaking of the truck. I suppose it could be a totally lost and confused traction control doing really weird things.

Some have speculated that it is the torque converter locking/unlocking. If it is, it is not a normal locking/unlocking which is relatively smooth, not the violent shaking I experienced.

It very well could be some condition, confusing the engine computer and causing it to do weird things.

(This won't make sense to anyone except a control engineer, but it's like it has a pole in the right half plane.)

MadocHandyman

Cracked coils would do this in the rain. Still be able to Rev high but with the shudder of a missing cylinder. My old truck would do that.
I just wonder if coil issues (as well as some TC issues) are getting mixed in with the CAC issues since many of them couldn't get it to do anything aside from stalling out, until the water cleared through.

Bills96TA

In my experience the engine doesn't get very wet even in heavy rain (all the covers underneath). What does get on the engine evaporates fast as well. When I had it there was no confusing it with traction control, traction control either pulls throttle, timing or both. This cuts your power and shakes horribly, I don't see a convertor being able to lock/unlock even close to fast enough to cause the vibration.

taperk600

I agree with both of these posts. When mine "acted up" it was completely dry out and I was accelerating on an on-ramp into traffic on the highway. And I've had the traction control kick in numerous times...this is nothing like the traction control kicking in.

As to why mine did the shuttering on a dry day.... service manager at the dealership said it was a "typical" condition situation where I had driven a few hours in changing temps (from cool early AM temps to warmer morning temps in this case) then stopping (to fuel up in my situation) which "creates moisture" which is then sucked in when accelerating, causing the shutter......

Matt6951

i think the turbos are so small that they are constantly in a small amount a boost that factored with a decently efficient intercooler, drops abient temps inside the cooler causing condensation.

maplelakeduckslayer

I was very active in this thread for quite some time...due to being in a convention in California back around June 17th and coming home to a major storm that has left me working 12-16 hr days ever since then...its been almost a month since I have been on the site. Any major new developments or the ame old ****? Since this year at work is turning out to be fantastic...if I can collect...I am for sure planning on doing an intercooler and programmer by Spring to fix my less than stellar towing performance.

Even my buddy who has only rode in my truck while towing about 5 times commented on how much it was downshifting this 4th of July. And this was with a 7x14 flatbed with 3 wheelers...instead of the usual 8x24 with 6 wheelers I usually tow.