Oil pressure warning light coming on!

[kkmchan]

Thanks for the replay. The light and sound actually come on when at lower speed, usually after the car been driven for a while. And goes away when at stop while engine idling. So it's hard from me to try to listen to where the sound is from. But like you said, I wonder it could be a clogged filter, in which case changing oil and filter might help. It was just changed before I bought the car. If that doesn't fix it I probably have to take it to the shop.