Thirdminor
Registered Member
I cant figure were it is coming from, i keep finding oil on my Intake. Clean it up and next time i open hood poof there it is agian. anybody got ideas????
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.
Oil on Intake
- Thread starter Thirdminor
- Start date
Where on the intake?
What year/model is the truck and do you know if it has the original intake manifold on it?
The CDR valve sucks oil vaporsout of the crank case and into the intake manifold to be "recycled". These have been known to be used far too long and clog up, which results in oily film around them.
The 1/2 ton trucks with the C-code intake manifolds actually have a EGR system that clogs up and does have oily intake tubes going up through the intake manifold.
What year/model is the truck and do you know if it has the original intake manifold on it?
The CDR valve sucks oil vaporsout of the crank case and into the intake manifold to be "recycled". These have been known to be used far too long and clog up, which results in oily film around them.
The 1/2 ton trucks with the C-code intake manifolds actually have a EGR system that clogs up and does have oily intake tubes going up through the intake manifold.
Thirdminor
Registered Member
passanger side between valve cover and air cleaner. 86 w/ banks kit. do not know which manifold made you can explam which is which?? thank you for help
Depending on the year there are a few different CDR configurations.
Depending on which size truck (1/2 ton with C-code emissions intake or 3/4 ton and up with J-code non-emissions intake) there will be a different intake setup as well.
Sometimes people swap the J-code intake onto the C-code trucks to get rid of the EGR bull****. Does yours have a big EGR setup inside the intake manifold when you take the cover off of the air filter housing? If so, you have a C code intake. If not, then you have a J-code intake.
That sounds like where the CDR valve is. Is there a brass colored can looking thing right about where the leak is?
I'm betting it's either clogged/stuck and oil is getting everywhere or someone thought they'd just bypass the CDR setup and now that is leaking.
Depending on which size truck (1/2 ton with C-code emissions intake or 3/4 ton and up with J-code non-emissions intake) there will be a different intake setup as well.
Sometimes people swap the J-code intake onto the C-code trucks to get rid of the EGR bull****. Does yours have a big EGR setup inside the intake manifold when you take the cover off of the air filter housing? If so, you have a C code intake. If not, then you have a J-code intake.
That sounds like where the CDR valve is. Is there a brass colored can looking thing right about where the leak is?
I'm betting it's either clogged/stuck and oil is getting everywhere or someone thought they'd just bypass the CDR setup and now that is leaking.
