Alright guys, the Malibu is back!
Issue: Wife was driving. Oil pressure light came on. Pulled over. Car wouldn't start for next 10 minutes. Then started right up, and made it home (Light was gone).
Oil: Yellow fluid in oil cap. Oil appears normal on distick. Oil NOT low. It appears to be above full. New. Was fine in Nov at last oil change.
Coolant: Super milky tank. Near-solid clumps of grey goo. Been like this for a while. Also, tank was EMPTY a month ago and refilled. Looks low again.
Clicking: Wife ways theres a clicking noise. Described at similar to a fan blade hitting the housing and clicking as it rotates. I haven't heard it.
No oil or coolant pooling under the car. No CEL. No low oil.
Primary: Intake gasket leak. Would explain the oil / coolant mixing.
Secondary: Head Gasket leak. Same as above, but harder to fix myself.
Any other possibilities? Also, and recomendations on how to confirm, before I waste time replacing parts?
Took the cover off. It’s pushed oil back up thru the carburetor into the air filter. Does the indicate any diagnosis in particular?
Took the intake manifold off / back on. No sign of leak or issue there.
Drained radiator fluid / oil. Replaced both. The oil didn’t actually look that bad. Should it be very milky if it’s a blown head gasket?
Also, won’t start at all now.