- Joined
- Oct 22, 2003
- Messages
- 1,020
I have been having some vacuum problems on my 351W with EFI so I pulled my upper manifold and replaced gaskets, checked connections, etc. As a part of the vacuum line clean-up I installed the PCV valve in the lower manifold where it belongs, routed the passenger side valve cover vent to the throttle body and put a sealed oil fill cap in the drivers side valve cover.
I started it back up after reassembly and only made it a few minutes before I started getting blue smoke. I pulled the upper back off and it was full of oil. I don't mean it had residue, I mean it was pouring out of it when I lifted it off of the lower.
I searched the forum and found a few similar issues but I never saw any responses that the suggestions fixed the problem. Should I go back to the PCV in the valve cover with a vented cap on the other side? I have always read that this was incorrect for EFI but I never had any problems like this with that arrangement. I also read in one post that using a Motorcraft PCV valve instead of a cheapo Fram unit will stop this. I have the GT-40 lower with the Explorer upper.
Anybody have any suggestions?
I started it back up after reassembly and only made it a few minutes before I started getting blue smoke. I pulled the upper back off and it was full of oil. I don't mean it had residue, I mean it was pouring out of it when I lifted it off of the lower.
I searched the forum and found a few similar issues but I never saw any responses that the suggestions fixed the problem. Should I go back to the PCV in the valve cover with a vented cap on the other side? I have always read that this was incorrect for EFI but I never had any problems like this with that arrangement. I also read in one post that using a Motorcraft PCV valve instead of a cheapo Fram unit will stop this. I have the GT-40 lower with the Explorer upper.
Anybody have any suggestions?