2010 SHO, lots of Smoke, lots of oil in intercooler

[YakovM]

A bit of background: I just completed replacing the water pump, and timing components on this car. while I was under the hood I checked the oil in the intercooler, and managed to pull out 5 OZ of oil from there... not too bad. After completing the job, I cleaned the oil pan, poured new oil in, and new coolant, and car ran perfectly...for 2 days.

After driving about 60 miles i noticed excessive smoke from the exhaust while on the highway, and pulled over shortly after. My first thought was head gasket...

I checked the coolant, level is fine, no oil mixed in, and no over heating.

Checked oil, - smoke coming from crank case, and all oil is gone. no sign of oil leaks. I had the car towed to my house and started tinkering with it.

Found a little bit of oil in the crankcase vent separator, and oil around the PCV fitting connection and PCV to intake manifold hose. I though it was a bad PCV valve, but before ordering i decided to check the inter-cooler.... guess where all my oil went.... yep... its all in the inter-cooler. how is this possible that all of the oil ended up in the inter-cooler after only 60 miles of driving? Bad turbos? bad PCV? any help or input would be much appreciated .

 

[SHOdded]

Welcome, and sorry to hear.

Most likely turbos That much that quick is unlikely to be the pcv system.

 

[krewat]

Unless the head was flooding with oil, the PCV wouldn't pull that much oil in so short a time. At least, I don't think so.

Sounds like the intake side of a turbo seal went and it all went into the intake. Luckily, it has an intercooler, and didn't hydrolock.

Was there ANY oil left in the crankcase?

 

[YakovM]

@krewat There is a minimal amount of oil left in the crank case. just enough to touch the tip of the dipstick. I got off the highway as soon as i saw the smoke , so the engine didn't run like that for longer than a minute.

Is there an easy way to check if its the front or the rear turbo? also , would it be possible that something was not connected right , its a crazy coincidence that as soon as i replace the water pump I get this issue.

 

[EB_SHO]

Check all the connections / openings to the crankcase. Any air leak to the crankcase causes too much flow through the POV system at high rpm and load and overwhelms the separator. The oil then ends up in the inter cooler.

Can happen that fast.

 

[Sgtmeatsauce1]

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