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Re: Goes In To Limp Mode Climbing Hills On A Hot Day
Posted to Technical Discussion Forum on 6/8/2021

Not as familiar with these bigger trucks, but the pickups tend to run out of fuel pressure under heavy load. A lift pump usually fixes that. I would recommend watching your rail pressure actual and desired, and look for a difference in the two under load.

James Kuhns
Owner/Technician
Auto Tech Solutions
Chatham, New York, USA