Hi everyone.
I was wondering if anyone else who has changed the intake plenum gasket noticed this as well. I had the typical symptoms of an intake plenum gasket leak. I had pooling in the rear of the manifold, using 1 quart of oil for every 1000 miles I drove...the usual. So, I bought my hughes kit and changed everything. When I went to clean my plenum out, I noticed that the old gasket still looked like it had a good seal.What I did find was a nice tell-tale sign of oil seeping from the PCV port. When I noticed this, I made a PCV change as well. The truck has been running much better since I made these changes. No more oil loss, or pooling.
I am wondering if all I needed was a PCV in the first place. I'd checked the old one many times before and it still rattled, so I thought it was fine. Maybe I should invest in some aftermarket valve covers with better baffles.
Has anyone else noticed this with their plenum gasket change? Any thoughts would be helpful. Thank you.

 

your pcv will pull crap up there. your quart every 1000 miles is your plenum