We took our Elantra in for an engine knock. They said it was in the top of the engine and replaced the entire top end. When we picked it up, it was still doing the same thing. I had told them about a known issue with that particular engine and they chose not to listen. Got the car home and saw that the oil had been way overfilled, presumably to try and hide the knocking sound. Took the car back a couple days later and they said a knock was normal. I asked why it hadn't knocked before 75,000 miles and they had no answer. They refused to look at the engine any further. Took the car to another Hyundai dealer who diagnosed the problem as the identical thing I told Randy Wise. They replaced the entire engine at no charge and also told me about a class action lawsuit that would reimburse me for the seized engine in my Sonata, which Randy Wise had replaced and charged me almost $5000.