I agree. I guess a simple answer is not in there vocabulary .
I am not sure whether to ignore this thread or actually try to take it seriously.... I am honestly not sure if some of the "questions" are an honest search for answers or just comments to obtain a reaction. I will take a stab at actually providing some information:
NO, you cannot "disable" the ecoboost system. In general, the 3.5 ecoboost engine uses direct injection, twin turbochargers, an intercooler and various sensors, devices, and a powertrain control module to make it all work. It is a very high tech engine and a concept that the entire industry is either already using or moving to very quickly. You see it on everything from Cadillacs to BMWs.
Direct injection is more efficient that port injection and allows a more exact amount of fuel to the cylinders. It allows for a higher compression ratio that creates better efficiency, too. A very high pressure fuel pump is used and it, along with the fuel injectors create a bit more noise than the old-fashioned port injection. Some describe the sound as a bit like a diesel engine. The twin turbos are run by exhaust gases and create pressure to force more air into the engine when power is demanded. In effect, they can make a 3.5 liter engine develop power like a 5 liter engine. High pressure from turbos mean heat so an intercooler is used to cool the air before it is forced into the cylinders.
In normal driving or just cruising, the turbos are spinning but not creating boost that is fed to the cylinders because not much power is being demanded. That allows the 3.5 ecoboost to deliver very good mileage when power is not being used. Press on the accelerator harder, however, and the system jumps into action delivering more air and fuel to the cylinders and the result is dramatic power. This system is sort of like having your cake OR eating it....you can have good mileage or great performance but not necessarily both at the same time. HIghway cruising with an MKS ecoboost will provide mid to high 20s MPG - about like the 3.7. The performance difference, however, is startling if you choose to use it.
The ecoboost MKS is geared differently than the 3.7 AWD version. The engine turns much slower at cruising speeds which allows for lower engine wear, less noise, and very relaxed cruising. The horror stories that you might find on the Internet are primarily about early F150s that had an intercooler that was actually too efficient. That issue has been corrected. Any other complaints are very few and mostly anomalies. You can google a problem for almost any car or any engine and find lot of "data" that indicates something terrible. I suggest you put it in context with the number of vehicles actually produced. What per-cent of owners have a problem? Who will likely be more expressive...someone who is happy or someone who has a problem...no matter how minor? Some of us tend to make a mountain out of a molehill.
While I don't like all of Ford's marketing, they have done a fabulous job with the ecoboost family of engines. If I recall, over 60% of F150s use ecoboost and there are huge numbers on the road with millions of happy owners. There are Taurus SHOs with well over 100,000 miles on them, some of which were tuned for more power and put on drag strips. Many police departments are using ecoboost police interceptor vehicles. The 3.5 ecoboost is a phenomenal success story and the next generation (currently in 2.7 liter size) will likely prove to be even better.
Edited by brucelinc, 06 May 2015 - 08:07 AM.