Engine wetness 🙄

Noticed some spots under my car coming from bank 2. Toward the very back of the car. This was the best pic I could snap. Any ideas? Will need to clean and investigate further� i know.

There are cam plugs and the aos elbow and tube from bank 2 right above your leak. U need to scrub that down and keep an eye on it.

The thing that�s covered with oil is one of the scavenge pumps. The first thing to do is clean it up well, and dry it off (just the cover - the whole area). Then run/drive the car and you should be able to see where it�s coming from. I think there is/should be a gasket under the cover - change it and torque the bolts to spec.

So I cleaned up with i thought to be the scaveng pump cover. But I�m also noticing the harness/lines above the cover are also quite wet.

I think @De Jeeper covered all the bases. The scavenge pump is unlikely to leak that much suddenly where as the AOS has multiple sources for potential leaks.

Now if I had the AOS replaced would it have addressed these points of possible leakage?

Quotes source post: 18735060

I put my money on the AOS elbow.

Would it change anything if I said the other side is also wet?

Quotes source post: 18829402

is bank one leaking from the other side (towards the front of the car)? if so, that�s the other side of the AOS line.

No. Bank two near cylinder 3.

The AOS can leak in many places including bank 1 near cylinder 3 and bank 2 near cylinder 4.

Quotes source post: 18829569

sorry my maths are all wrong�. Bank 2 near cylinder 4

Is #6 the culprit in question? that thing is quite buried, what�s the process for changing this?

Part #6 on early 2003 models and previous ones has an "overpressure valve"/" blow-off valve" built into it...If there is excess blow-by it can cause oil to be blown out the valve and drip down.... To know if you have excess blow-by, do a blow-by test as shown here... https://rennlist.com/forums/996-foru...w-by-test.html What to do if you have excess blow-by causing oil to blow out the overpressure valve :::: 1. Rebuild engine with new rings/cylinders that have minimum blow-by.. 2. Plug overpressure valve like is done on later 2003 and 2004 models...but install the UAOS with Track drain to handle the excess blow-by and accompanying oil.. Option 2 can give you more useful life out of your engine before the inevitable rebuild becomes a must...

Quotes source post: 18829312

I believe you are correct. Took out the intake and a lot of crud collected on that elbow. is there anyway to replace this easily? Coolant hose and AC lines are in the way.

This job is a pissah. Not to dissuade you from tackling this, but you�ll need to remove that 2 inch coolant line and catch around a gallon of fluid. Also disconnect the the terminal 30 jump terminal after disconnecting battery. You will need to move the old stiff wire loom out of the way too. Do everything that PT3 mentioned plus replace those O-rings. I replaced my cam sensor as well. Since it is so hard to access otherwise.

Quotes source post: 18845130

If I had the intake monitor out,, I'd replace the AOS, with a UAOS(Read the thread its got a couple tweeks on some cars.) , have the starter tested, and the alternator, I'd have the injectors cleaned or order a set.. Once your that deep you can play now or pay later.. Unless your just talking about the intake air box...

Quotes source post: 18847194

yeah just the airbox�not the manifold

Once I got the part it was less than an hour all in and I only needed to remove the airbox. Tight as hell and scuffed up my hands. the valve on the old one was pretty plugged up. Pretty sure this was the culprit. Will report back.