Intake Oil Leak [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Intake Oil Leak


TorontoCity
07-31-2010, 05:20 PM
Hey All... It seems like oil seeping out of the intake.... See PicBelow ...
i Cleaned it with Gas and it started again....AnyBody seen this before?
Thanks.........

JMJNet
07-31-2010, 09:29 PM
It is probably the CDR (a version of PCV in this truck). It is the tuna can looking things there.

TorontoCity
07-31-2010, 10:07 PM
Thanks for the reply...So what does it mean...the oil is getting thru to the intake?
Should i pull off the intake and see...?

racer55
07-31-2010, 10:17 PM
there is also a chance that the seals are going in your turbo and lube oil for the turbo bearings is being fed to the intake and engine.
can't rule that out.
better monitor your oil consumption closely.
the cdr is a vent for crankcase pressure and is fed to the incomming air the turbo recieves,all that air is compressed by the turbo and feeds directly to the intake.
if its the cdr it can be replaced or cleaned but if your engine is getting worn out there could be excessive blowby that is carrying oil fumes through the vent and eventually to the intake.

GSXR600
08-01-2010, 03:00 AM
nothing against racer but before you start looking at a turbo problem (which is mighty spendy) look at the small things like replace the intake gasket. change the CDR, small stuff first. no need to waste money on a $600+ reman turbo and have the same issue. and plus since the CDR vents into the intake, moving air from turbo moves oil vapors back into the engine. Pressure+ oil vapor+ cracks= leak/ seepage. but like he said watch the oil level