Okay, but it isn't the cat, and I never said it was the cat? I asked if these issues should not be covered under the 10yr/100k mi. powertrain warranty. And they should. Still. It isn't a cat, and the motor should be covered. They sold him a cat, without properly diagnosing the vehicle imo. Quick cash grab for a shitty dealer, happens. I accept the warranties were different, and I do admit, that was something I was unaware of, since exhaust is technically part of the powertrain imo. It exhausts waste gas from the motor, which is part of the power train. Its seperate, Hyundai is weird, whatever, I'm over it. Didn't care to begin with, because I maintain; never was the cat my original point. That's something that was brought up because clearly someone missed my point.DubbuD, read your post #4 in this thread. You were wrong then. 'Fess up. The point was that IF it had been the cat, it would not have been covered by the 10/100,000 powertrain warranty.
My point is the dealer should be replacing motor parts under warranty since it is not a cat. Assuming the car was bought new in the US. A motor with water in the oil and misfires on half the cylinders or more should be checked for head and head gasket problems, as well as fuel injection issues, and spark/wiring problems. When someone comes in with a car misfiring, you don't just slap a new cat on it, charge the customer, and call it a day. You diagnose the issues. Its misfiring, and has water in the oil (that's a pretty hard thing to miss if you check the oil at all, which you should, the car is misfiring), and has thrown multiple codes related to emissions and mechanical failures. I'm saying none of this sounds like a cat. I've had cars with bad cats, really bad cats. This is my first new car in fact. Most of my cars until now have been old beaters. Never has a bad cat caused any of these issues on any of my vehicles. Is it possible? Very slim chance, but in theory. Definitely not the first thing I'd check/buy to try and remedy the issue.