Whats the most common, recent 6.7L problem

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#16

11-28-2018, 10:34 AM

carbonation

Mountain Pass

Join Date: Jul 2018

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Quote:

Originally Posted by SkiSmuggs

I've noticed EGR, turbo and DPF failures listed here. I can't help but think that soot reducing additives like BetterDiesel FBC, Enerburn, AR6200, Opti-Lube would be helpful. These failures fly in the face of "these trucks are made to run on today's diesel fuel" comments. Some of us believe in fuel additives and some don't. Others have never given it a thought.

I believe in Santa, Miracles, Love, and fuel adds. ULSD with bio content in an effort to extend the oil supply and reduce emissions is counter-intuitive, especially when you catch the soot, and then inject more fuel to burn the soot.
You need lubricity, Opti-Lube, FPPF, Schaeffers. An injector cleaner to keep deposits down is always beneficial. EnerBurn and other fuel borne catalysts provide more complete combustion, and lower the temperature at which soot burns, keeping the dpf cleaner. And cetane improver so you don't get stuck with 40 cetane crap from some pumps.
It's all backwards IMO. They keep trying to clean up the mess when a chemical re-design of the fuel in the first place would be a better start.

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#17

11-28-2018, 12:03 PM

HDBiker67

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Join Date: Feb 2011

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I got a 2015 Dually XLT in April of 2016. It had 14k on the clock when I got it, and now I have over 57k. I have towed about 15k with it. No major problems. I had the rubber turbo hose on top of the motor pop, replaced under warranty in about 15 minutes because it happened on the way out of town on a trip. Thank God it was only a mile down the road.
I have had the 5th to 6th gear issue but the dealer "cant duplicate the issue".. whatever.
Lately I have had trouble getting it to 4wd sometimes, usually its when its hooked up to the 5th wheel, but I cant seem to make it happen when I want to so I can show the dealer. My warranty expires in a couple thousand miles, so I am debating extending it or deleting it...I know thats not the 4wd issue...just my two choices. The 4wd issue is when I turn the 4wd on I hear the solenoid switch but it says on the screen "cant complete shift, move forward" but the problem has been that I had the 5th wheel attached and I was spinning in mud. Not deep, just enough to pack the treads of the tires and I am toast. I was able to get it to somewhat engage manually, enough to get out of trouble and when unhooked, it works fine. I have tried a few times to turn on the 4wd with the 5th wheel hooked up when I didnt need it and it works fine.... frustrating...
other than that its been trouble free.

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