High altitude problems

**tastebud** · #1 (**permalink**) 06-26-2009, 05:32 AM

I have got a 05 6.0 towing a 27ft travel trailer that runs great until I get it in altitudes over 3000 - 4000ft, it will happen suddenly when going up a grade , it feels like i am loosing the turbo and the higher the altitude the worst it seems, when I finally get to the top of the grade and start going downhill it will run normal until I get to another hill, this has been happening for the last 3 years , the truck has 100k on it and runs great with no load, leaving on a trip monday and would greatly appreciate some help,

Austinj427 · #2 (**permalink**) 06-27-2009, 08:49 AM

I dont really have a clue?

Are you sure you arent just noticing an altitude difference? I remember my ranger would need to be run nearly wide open over 10 000 feet to feel like I was moving.

**tastebud** · #3 (**permalink**) 06-27-2009, 01:31 PM

Thanks but I have been having this problem for a long time and have tried a number of things,I have cleaned the egr the day before a trip, fuel filters, airfilters,etc. Is it possible for the turbo to just stop working because that is what it feels like, When I am in the coastal mountains that are not very high but very steep the truck pulls great but as soon as I get in the higher stuff it starts acting up , it will go from 55 down to 20mph fast , there have been times when I thought I was not going to make it over.

gmsmith36 · #4 (**permalink**) 06-27-2009, 09:32 PM

what are the levels at the point of complaint? what is the ambient air pressure sensor reading?

**tastebud** · #5 (**permalink**) 06-28-2009, 07:18 PM

Thanks for the reply, I do not have any gauges so I dont have that info, Can you reccomend a set? I think that is going to be the next purchase so I can see whats going on.

gmsmith36 · #6 (**permalink**) 06-28-2009, 10:17 PM

really up to you what you want. for now just plug a gauge in and tape it to the cowl. you can buy a oil pressure gauge cheap enough to check the boost. get a 0-60 gauge. or buy what you are going to install for gauges. autometer, isspro, check one of the sponsors on here.

**tastebud** · #7 (**permalink**) 06-29-2009, 05:09 AM

Thanks again, leaving for the sierras this am, When I return I am going to invest in a set,

03-blue-Powerstroke · #8 (**permalink**) 06-29-2009, 05:13 AM

Good luck on your trip! I have Autometer boost, trans, egt, and water temp gauges and love them

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