Oil accumulating on top of the engine

[n6nfg]

I am noticing a bit of oil starting to accumulate on the top of the engine. I don't know where it is coming from, but it seems to start at the front of the engine (where the intercooler hose enters the block maybe) and is kind of "streaked" back, some on top of the oil filter housing, and finally ending on the black plastic cover that is over the turbo. I haven't noticed any being sprayed up on the hood blanket (yes I had to buy it extra!) I keep wiping it off, but today I noticed enough had accumulated on the cover over the turbo to cause a single "drop" to develop under this cover. It is not a lot of oil, and I can continue to wipe it off, but I didn't know if this was an indication of trouble starting. I did notice that the plastic hose end from the intercooler was slightly "cockeyed" on the engine block right angle fitting. If I wipe around this area, there "may" be some oil here, but not much. This is the only place I can figure it is coming from. I can straighten the coupling back on the housing, but it only moved less then 1/32" when I straightend it. This is a 05/04 build with the silver colored air hoses with blue couplers. Any ideas?

[matt1751]

Most likely is coming from the intercooler tube(CAC tube) where it connects to the elbow on the maifold,, see photo's in my gallery.. I have seen many leak here,, mine was actually leaking on the lower connection at the intercooler but just tighting it will not usually fix the leak,, you will need to remove the tube, clean it with Break Klean, let dry and then reassemble tighting the clamps good,, I have had no further leaks and has been at least 4k miles since I did this , the other place it could be leaking is from the oil filter cap if not tight but must likely the CAC tube

[IB Tim]

Good call Matt.......and spot on

[n6nfg]

I had dealer reposition and retighten the hose (yes the one noted above from the intercooler, thanks). They cleaned up the oil, and we'll see if it comes back.