I would probably buy another ecodiesel. I think GDE's new tune will help many people if it is as advertised. The ECO certainly has its share of issues that I hope are resolved. Fords 3.0 diesel isn't exactly flying off the dealers lots though and I haven't heard anything about the new GMC.
The plastic intake manifold may have shown some signs of melting. When the EGR cooler fails or leaks it can inject hot coolant into the intake manifold and potentially cause a fire.
Your situation seems incredibly frustrating and I definitely understand your plight. However it does seem that taking the settlement money, doing a tune that can be taken in and out and quite likely having your truck drivable instead of in the shop so much might make you money ahead.
I certainly...
I am set up almost exactly the same including leveled and 10 ply tires but without the 600 lbs load.
City 20 to 22 (seems to like 21.5!) Hiway 24 to 26 @ 60 to 65 never really go 70 for any appreciable time
I ordered a new fuel filter from Amazon and it came with the packaging completely destroyed, hard to tell if the filter was crushed so I sent it back. I also noticed that it looked very different so I just decided not to trust it.
I went to the dealer today to buy one and they had the same style...
Swung by my dealer today to buy a new fuel filter. Decided to ask the service advisor there about the EGR cooler replacement. She told me they are getting an allotment of 2 a week and put me on the waitlist. It was indicated end of July at best.
Not too worried at this point as I am GDE hot tuned.
I know it sounds silly but turning the phone off and starting from scratch sometimes works with connectivity issues. My iPhone 6 used to glitch upon occasion and that worked.
I will be straight up.. you probably won't average 23+ unless you exclusively drive on the highway. I usually sit between 21 and 24 depending on where I go. If I take a long trip w/cruise control at 70 mph I can get around 29ish. 11 to17 towing my camper depending on conditions
“No clues where it is coming from, would say they need to tear off the headliner and we know they aren't going to do that.”
you might give them a chance before you jump to conclusions.
I also have had trouble free operation
2015 Bighorn bought new
Daily Driver
Tuned in Dec of 2019
Have never seen an engine code once
around 50000 miles, plenty of towing but mostly daily driving, mix of city and highway
very fussy about oil and fuel filter changes (every 7500 miles for both)