Zeroskillet

justnspace

iTrader: (1)

valve cover gasket perhaps?

Iggy

zeta

iTrader: (1)

It could possibly be a leaky o-ring (#15) around the Front Camshaft Thrust Cover Assembly (#6) on the link below:

https://www.oemacuraparts.com/auto-p...nder-head-scat

Iggy

OP. Take the plastic covers off. Spray the whole area with brake cleaner until it's nice and clean then take her for a drive and recheck to see where the leak is coming from. You can keep the plastic covers off to make inspection easier.

MBLiberty

Interesting. I'm dealing with a leak in the same general area in the 3rd gen forum here:
https://acurazine.com/forums/3g-tl-p...-block-970154/

Baron Von Zeppelin

Dipstick tube lower O-Ring is common leak - and will make a mess all the way across to the transmission.
Will appear as several leaks from everywhere at a glance.

One 10mm mounting bolt on its bracket - hidden in with serpentine tensioner mounting bolt .
[location circled in Red]

Clean lower entry area very well BEFORE removing dipstick tube.
[circled in Green]

I also use silicone above the new O-Ring , on the tube.
After it is installed and bolted , smear another bead of silicone around the entry area.
Let it dry as long as you can wait - preferably overnight.