[Mr X]

I noticed that above 7,000 feet my truck is not quite as quick taking off from a stop. Once it gets wound up above a few mph it's all there no problem. Anyone notice this or have a fix? I figured it was the reduced air pressure at low tubo speeds which the turbo fixes upon getting a little more rpm.

 

[Mr X]

Thanks CS-Dmax,

I guess it really isn't hesitation, compared to sea level, just a initially a little sluggish off of the line which disappears after about 3-4 mph. It tows just fine up in the mountains.

 

[Mr X]

HA! That was a good one jesshd. I stil haven't had it up in the mountains with the CAT yet. We'll see this winter. Love taking it up on the mountain roads with the T/H switched on, tapping the brake for a downshift.

 

[Mr X]

Hey, I believed your original 1/3 of oxygen. Last July went backpacking with about 45# pack, only 5 miles but an elevation gain from 8,500-to-9,500, and it felt like there was only about 1/3 oxygen by the time I got there.

 

[Mr X]

Doesn't the turbo compensate for air density differences in our diesel engines?

 

[Mr X]

10/4, thanks all for the explanation. I kind of figured it was like that but hadn't seen any other reports of this.

 

[Mr X]

Likewise here in CA, 1.25 miles from the beach at sea level. But only 100 miles from 7,000-8,000 foot Big Bear Lake in the mountains and winter snow.