Problem with engine check light always coming on. Kept checking with dealer, checked code, issue with gas tank, probably just the cap not tight, coincided with filling car up so accepted maybe wasn't tightening cap right. Very annoying, light would go off. This year light kept coming on more frequently and took longer to go out, bought new gas cap. Made no difference. Light started coming on when not filling up, finally fed up took it in, ran code, indicated problem with some sensor in tank. Fixed(what a joke). Two days later light back on, took in again just last week. Car started losing power. Same code only now a problem with some oxygen sensor in gas tank, fixed (bigger joke). It has only been a week since car fixed?, light is back on again, car losing power again, engine running rough, now tapping noise. Car has never run hot based middle of gauge but it is almost there, when I didn't have this problem the car ran a lot cooler. Well back to dealer again.