Altitude And Diesel Engine Power

I went to Albuquerque today and while climbing the grades, my truck seemed to be laboring. Does a Diesel engine lose some power at higher altitudes?

I know many of you drive the Rocky Mountain passes, so I figured I could find out the answer to this question.

It's not the truck, it's the grades of hills. Been there at least 60+ times thru Alb...lol it's coming down into there on the downhill, I always watched my speed, too easy to hit 75+ if not careful.....

Less air, less power.

New trucks are fuel injected. So, shouldn’t have problems like carburetor engines.

New trucks are fuel injected. So, shouldn’t have problems like carburetor engines.

Plus an abundance of computers controlling everything attributed to the power train.

I went to Albuquerque today and while climbing the grades, my truck seemed to be laboring. Does a Diesel engine lose some power at higher altitudes?

I know many of you drive the Rocky Mountain passes, so I figured I could find out the answer to this question.

Pulling a heavy load up those grades will cause the truck to do a regen more often and you might have been pulling a steep hill at the exact same time the computer told your truck it needed to run a regen cycle.

Dan67, do regens take place while the truck is traveling down the road? In other words, can a truck do a regen without the driver knowing it’s going on?

I don’t know very much about regens, so I’m trying to learn more,

Yes, your truck initiates a regen whenever needed. Most of the time that happens while cruising at highway speed.

Where do you think all that DEF you're putting in there is going?

I got this truck new and have had it about eighteen months. I've never needed to initiate a parked regen. It takes care of its own business while I'm chasing that white line.