Recently we had replaced the Camshaft and crankshaft sensor. The car has always used some oil, but after those were replaced it was leaking a lot of oil. I replaced the valve cover gasket and that helped, but I'm still using oil. I can smell the oil when I stop at a stop light, but it doesn't seem to leave any puddles. Is there a common part that leaks oil on the Sonatas. I don't see oil on top of the engine anywhere. Any suggestions would be greatly appreciated.

 

Sounds like one of the sensors was not installed properly. I'm not sure the crank sensor is in a lubricated part of the engine but I know the camshaft position sensor is. If there is an O-ring that is not installed or not seated properly you may be losing oil there. Since the issue got noticeably worse at that time that's where I would be looking. The oil would likely come out mainly when the engine is running and would burn up on hot engine parts.

 

Which engine ??

(2) applicable engine to the Sonata ...

 

4 cyl engine. Forgot to add that.