Shanajustin

They burn the same fuel as us. They have a turbo like us. Why do they have such a distinct smell? Not only can you discern their sound from blocks away, I suspect I am not the only person that can smell them from blocks away. Is it the HEUI injection? I have come to the conclusion it must be, but why? Oddly enough, though I have a great disdain for powerjokes, I do enjoy the way they smell. I don't know why.....

SOhappy

All Ford trucks stink.

klx650a2

It could be the nox scrubber and dpf. My truck has a distinct odor to it compared to my dads 2005. That being said, after driving a friends 08 with the dpf and egr deletes and the smarty turned up, I may go that route this summer.

Shanajustin

They even smell different if you are talking about a non dpf 6.slow or an old 7.3. Again, they run the same fuel. Even the egr/dpf cummins still has yet a different smell than a egr/dpf stroke. Is it the injection?

The D-max, which runs a CP3, is similar to the Cummins. What is so different about the injection events of heui v. common rail to cause such differences in smell? Not to mention even the older vp44, p pumped, and rotary pump trucks. They all smell "normal"

illEatUrDuramax

i would like to know as well, even the 7.3 IDIs smell the same as 6.0s and newer 7.3s

pind

It is called massive over-fueling in stock form.

As near as I can tell, from the ones I have owned, ford must be trying to inject the fuel through the exhaust valves.

Poor mileage and a burn your eyes out rich exhaust stream are the norm. Also, the powerstroke uses a CCV chamber, that vents the crankcase gases directly into the intake tube, between the air filter and the turbo.

This in turn, carries the vapors, and oil, through the compressor wheel, and into the charge air cooler, and generally just makes one heck of a mess.

I am sure these things contribute to the unique aroma that I like to call money out the tailpipe.