Does the 3.0 have a schrader valve for the fuel rail? I can’t seem to see one anywhere. I have a very loud banging noise coming from the rear of the passenger side valve cover or fuel rail. It’s so loud that I can’t pin point it exactly. The noise started after I replaced my fuel pump and fuel filter so that’s why I want to bleed the system to get any air out.
I pulled my fuel rail out of the shed to have a look and it appears that there is no schrader valve. I will grab some pics to see if anyone else can see one.
Here are some pics of the fuel rail (sorry for the fisheye look, only camera I had was a gopro)
http://audirevolution.net/addons/albums/images/918267987.jpg
http://audirevolution.net/addons/albums/images/88279660.jpg
http://audirevolution.net/addons/albums/images/99555354.jpg
Have you checked the bentley manual to see if there is a different to way to get the air out of the system.
It’s strange the V6 doesn’t have a schrader valve. I will check the Bentley Manual. I think the noise I am hearing is a bad lifter. It is now starting to quiet down after the engine warms up. When the engine is cold, it sounds like a diesel school bus. Pretty embarrassing.