Car motor oil leak on top of my valve cover i like to fix it?

i have a 1999 ford conture 4.0 l 4 cyl i have an oil leak on top of the valve cover i think it an oil sensor but not sure can i fix this or take it to a dealerCar motor oil leak on top of my valve cover i like to fix it?
Thats not a oil sensor, That is the actuator for the VVT. and yes you can get the o-ring, I think it comes in the valve cover set. Make shure to ask the parts guy if you go that route.





ASE L1 MASTERCar motor oil leak on top of my valve cover i like to fix it?
First look and see where you think the leak is, clean off your engine with a pressure washer if possible,run the engine till engine is at normal operating Temperature recheck if you don't see the leak take it on a road test then check again.If you have a leak you should be able to know if its a valve cover or a sensor if you have the tools you should be able to tackle this.