Ok....the help number at Hyundai was bullshit. No help what so ever. They "documented" what i said and then called back days latter to say they stand by what the engineer said after the tensioner change, that it was acceptable. Well, after sitting for 3 days it rattled again. I told the dealer they were getting it back because it is not fixed, but the engineers are on vacation due to thanksgiving! The plan is to deliver to the dealer, after 4 days when the engineers get there, we all are present on start up! My belief is.....they WILL understand they are WRONG and it's not fixed! Will update soon.