Jeep My engine had a major malfunction, causing it to fail damage the pistons. As a result i need a new engine and they will not cover any of it. The engine has 75000 miles North Carolina

If having the engine being covered until 100K miles is that important to you, then you should have read the Warranty and not purchased the Jeep back in 2015. You can't purchase a car with a specific warranty and then years later when something fails on the car complain that the warranty wasn't long enough.

Not defending them, but when you purchased the Jeep it already had 48K miles on it and unless you got every single maintenence record you have no idea how it was maintained or treated. Improper maintenence could easly cause an engine to fail quicker. So perhaps the next car you purchase you should purchase new so you know exactly how it was maintanined and treated the entire time.

 Any car that can't make it to 100000 is pathetic. Warranty or not. I hope your engine goes out and you're in the same boat, then im gonna mock your stupid a*s. I had it serviced at the dealership everytime, so the records are good. Idiots like you are why car manufacturers get away with this sh*t.

 The jeep has 75000 miles. Id they make a product that's that pathetic, they should discontinue it or be able to replace it. You taking IP for them cause it's overt 5 years old is ridiculous. If you're Ok with a vehicle lasting less than 100000 miles you're a f*cking idiot!

What does the written warranty state?

According to what I found, the 2012 Jeeps had a Powertrain warranty of 5 years or 100K miles.  The manufacturer warranty starts from the original date of purchase.  Which would mean that it would have expired at least 1-2 years ago.   After the warranty has expired they are no longer responsible for any repairs.  So why would you think that they should be obligated to replace the engine?   Even if you aren't asking for a replacement, why do you feel that they are responsible for even a portion of the repairs?

If you do have a written Extended warranty that is active and would cover this, then what is the specific reasons they are refusing to help?