Mine had 57,000 miles on a 2016 and was covered under the original warranty. I believe with the extended warranty it is covered to 120,000 miles. The diesel mechanic said expect the same thing to occur at about 114,000 miles. That's very reassuring. I will either not have the truck at that stage or the whole truck will be tuned and all the emission crap will be gone. Contact FCA and request payment for a car rental while the repairs are done. You are entitled to $35 per day toward the cost of a rental. You only get the money if you actually rent the car. Unfortunately, $35 per day covers about an intermediate rental through Budget Car etc. If I could have found a truck to rent that was like mine, I would have had to pay about $90 per day rental, hopefully you have another vehicle for transportation. The dealership told me it would take 3-4 weeks to order the parts and make the repair. Luckily, they got the parts early and the truck was in the dealership for only 9 days.
I know when the hole melted in mine, the truck was seconds of bursting into flames. When it went into limp mode, I was nearly struck by vehicles on the interstate. I filed a complaint with the NHTB and suggest you do the same. Three days ago I also started loosing heat, I bring it in on Friday to be checked,. The engine light is on full time. I suspect it is the EGR issue and that will likely need to be replaced. I also have an issue with the transmission coolant by pass valve and the dealership said that needs to be replaced at a cost of $600 and that's not covered by warranty.
This week I opened a case with FCA and they are looking into the matter. I was told initially that the transmission coolant by pass valve was not covered under warranty. I advised them that I am an attorney and that I am consulting with firms that handle class action automotive suits and if my problems were not resolved, I had no problem initiating a class action recall lawsuit due to the new problems with the 3.0L. This includes the fact that the MPG that were advertised when the truck was purchased are not the MPG that I am getting after the computer was reprogramed and that FCA has now made changes to the maintenance schedule recommending that the oil change interval be lessened and that I might have to have additional maintanece done to clean the soot buildup in the engine, all at my expense.
When I bought up these issues, I was told there was a goodwill warranty coverage that could be applied to the majority of the costs not covered under warranty.
I can tell you now, FCA has assigned representative to try and take care of customers that are having problems with the 3.0L diesel motors. They will be generous in trying to get these 3.0L diesels limped through until the purchaser sells them or they hit the scrap yard. FCA does not want any part of a new class action lawsuit over these motors.
I also sent a letter to the president of FCA advising him of the problems with my truck and that it is very dangerous to operate this truck as it is a fire risk and that when it goes into limp mode it basically shuts down to 10-15 MPH, which is extremely dangerous on a freeway where the traffic is traveling at 75 MPH. Not only is it a fire danger on the road but it's only a matter of time before one of these truck starts on fire in a garage and burns down a house while the family is inside. I officially put FCA on notice of the matter, I am awaiting a response from their legal affairs department.
It is becoming quickly evident that FCA is going to have to initiate a recall campaign of these trucks with the 3.0L motors. Until that happens, they are assigning workers to open cases and deal with the problems on an individual basis.
I would suggest you contact FCA and have them open a case on your vehicle. Good luck.