volvo D13 oil separator has oil coming out from pipe

Doesn't mean it related. Antifreeze would dry out by now. Shouldn't cause any problems.
Try to test the sensor, maybe.

What's the mileage?

 

552,000 on the truck. Well while pulling my cheeses load down to Craplanta the check engine light went away. Im still gonna take that thing apart and clean it though.

 

Ditch the Lucas..... It's only 60wt oil with viscosity improvers. There is zero anti wear additives in that Lucas garbage.

What oil are you using?

 

Btw ... The separator is an emissions type device but not regulated like a catalyst.
You can plug the inlet to the spinner filter .... and put a traditional crankcase vent hose on the truck to the ground... Problem fixed and allot cheaper to eliminate crankcase pressure...

 

I run mobile delvac elite semi synthetic

 

Good stuff, don't contaminate it with that Lucas garbage, you're actually degrading.. diluting the oil anti wear protection with the Lucas

 

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This issue FOR SURE -- is the OIL SPINNER has stopped spinning - FROZE UP - REPLACE

 

Filter is spun by direct oil pressure feed, throwing oil to outside where it drains through a channel to sump, fumes are drawn into intake just before turbo, if filter slows or stops intake suction will draw oil into turbo, when engine is shut down you should be able to hear filter winding down if you listen fairly close to filter, can be stripped and cleaned ,not always a fix but you may be lucky.

 

I got the same problem and same truck with spn153 fmi7

 

I got same problem just put a radiator in mines last week