I havent heard or read about the 6.7 having it, does it?

 

Yes they do. it is active when using the truck in tow mode only.

 

Excellent, thank you.

 

I believe it's just the vanes on the turbo just closing down the airflow. It does offer some braking. I can't seem to find anywhere the specs on how many ft/lbs of back pressure it creates.

It's very transparent to the driver. You don't hear any wastegate venting off excess pressure or other signs of it working. I had a B&D Exhaust brake on my 2006 6.0L. The 2011 doesn't seem to have as much exhuast braking power as my old truck did. If it does have as much braking power, it is very smooth and just not as noticeable.

I pull several trailers. I feel it the most pulling my GN Horse trailer, This weekend I hauled 5 horses up onto the Aquarius Plateau at over 10,000 foot elevation and back off the mountain. It held me at 40 mph coming off the mountain, which was a comfortable speed for the road I was on. So it does work for that 11,000 - 12,000 lb load.

 

Delete entry

 

This makes me sad. I never get to tow trailers that cool in places that cool. I just haul my 16' steel vending trailer around, full of merchandise. I feel so lame

 

Yeah, he painted a pretty picture there. A man, his horse, his truck and his guns. I hear John Wayne saying "pilgrim" in the background....it's a beautiful thing. and so American

 

Can't you just see John Wayne, guns blazing in True Grit charging across the meadow? Of course the bull elk in the photo wouldn't stay standing around very long.

 

where is the aquarius plateau?

 

somewhere in utah where else would you have thought there would be scenery like that.

 

South Central Utah. A hundred miles to the east of Bryce Canyon.

 

Lucky Ned Pepper never made it out of that meadow...Tom Cheney never made it out of the snake pit...and I need to get a life!!! Great photo

 

I know it works because after I hit the brakes 2 times on a very steep decline with an 19 foot bass boat behind me the engine brake held me at 55mph all the way down. Does anybody know how to 'really' activate the engine brake?? Rick

 

"Fill your hands!" I love that classic.

YouTube - John Wayne in True Grit

 

I've had the idea it was the two brake taps, too.
Seems more like gearing from what I've experienced.
To hold speed, my truck simply decides to downshift on a hill.
If any type of exaust brake is involved, I certainly don't hear it over the higher RPMs. Whatever the truck does, it holds the speed well and sometimes too good.