Recent content by rquaale

When ever my truck is idleing I hear a hissing sound under the hood, but it doesnt throw any codes or have any driveability issues. The a/c and everything else blows out of where it should. What would cause the hissing but not cause any noticeabe issues? I noticed the sound when I was refilling...

I redid my head gaskets a couple of months ago and ever since I put it back together it ran super rough and kept throwing a misfire in cylinder 6 I traced it down to dead injector and it runs better most of the time. There is a vacuum line connection (I think) under the intake plenum that does...