Wifes 2004 Sorento sat for two days. She started it up today and it has what sounds like a valve tick. She cut it off and got me, I started it up and the tick is still there, cut it off checked oil level, it's fine (oil color fine, caramel color), drove it about a block and back, power is fine. The truck has about 80K miles on it and hasn't had problems before, other than diode in the interior light (replaced by dealer, bad again) and it seems to go through headlights and driving lights about twice a year. Has anyone else had this type problem? We live about twenty miles from dealer, would there be an issue if I drove it in? I use synthetic oil and change it about every 5K miles. Thanks.