Today, I was driving the car to the dealer and noticed there's good amount of valve/tick noise coming from the engine compartment. It doesn't seem all THAT loud once the car warms up but still, it's annoying. Do you hear this even in very healthy engine or do I need the valves adjusted? My 45000 service is coming up soon so I was going to get everything done then anyway, but I wanted to know how loud is indication of something wrong...? From what I read in the past posts, valve adjustment won't help all that much though?