Originally Posted by
VaderMarine
He used all of the O-rings and proper filter which I had supplied. The leak appears to be on the passengers side in front. May be unrelated to the oil change but he copped to not checking oil as it was added.
One of the O-rings goes up into the filter cartridge cap at the end of the stalk. This requires the filter cartridge to be dis-assembled. (Click
Link) I don't ever do that because of the risk damaging the filter cartridge. Nearly all of us don't install that O-ring.
It is possible that the Filter housing itself is leaking. This could require a new filter housing to be installed. Much bigger job, but it does happen. Look at this YouTube on replacing the filter housing.
If the oil leak is coming from the PS (passenger-side) of the engine, could be from the following:
1) Major Valve Cover Leak - You may need to have new valve cover gaskets installed.
2) Leak from Dip Stick - Possible the dip stick was not inserted completely. Requires a small amount of force so the O-ring located at the top is sealed against the dip stick tube. Or the dipstick is leaking from where it is mounted into the block. Could have become dislodged or cracked where it is mounted. Is the dip stick even installed? I hate to go there, but stranger things have happened!
Your oil leak is a major one. Be careful driving car for any distance until you locate leak. Good luck with finding the source of the oil leak.