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- - new 6.7 owner ?? (https://www.dieseltruckresource.com/forums/3rd-gen-engine-drivetrain-2007-up-114/new-6-7-owner-232567/)

jahagb

Feb 9, 2009 08:39 AM

new 6.7 owner ??

I Have A 07 3500 6.7,i Have Been Reading On This Forum About Unplugging The Egr . My Truck Is Stock With 8.000 Miles And The Milage Sucks 12mpg Is The Best Its Got. If I Unplug Egr Do I Have To Remove The Butterfly Also??

mnmlod

Feb 9, 2009 10:50 AM

I just unplugged mine and had no problems.

concreteman

Feb 10, 2009 07:19 PM

unpluged mine as well, mileage has increased by two to three mpg, that is with a 50/50 highway and city driving and loaded with foundation forms and tools, averaged 16.5 after unplugging. Wish I could run it on a long stretch of hwy with no load to see what I would avg. That is hand calculated too. I did not pull the butterfly, I may in the future.

mnmlod

Feb 10, 2009 09:52 PM

sorry, mine did increase 1.5 mpg for both highway and city

jclaflin

Feb 10, 2009 09:58 PM

unpluged average about 15-16 before 13

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