What are these things on my intake manifold??
A - no idea
B - some sort of fuel pressure regulator? Is it vacuum operated?
C - This thing attached to B and I thought it went to my throttle body... but it doesn't look like there is a hole for it. It looks like a little vacuum line or something.
Thanks, -Dave
Trending Topics
The Best V8 Stories One Small Block at Time
B: Evap solenoids
C: Vacumn for your fuel rail i think it goes to the back of the intake that capped on most
So what the heck do I do with A, B and C??
A - vacuum hose, sounds like I should keep it. Right?
B - I don't even know what an EVAP system is or does. Is this something I should have? Does it have anything to do with my charcoal canister? Are both of those parts the EVAP?
C - ???
B- is your EVAP system, this suck the fumes from the fuel tank in to your intake system.
C- no sure..
A and B are part of the smog system to keep emission and fumes from escaping into the air. Do you need them?, will that fight will go on forever as usual.
They do have some benifits.. like the PCV system will add neg pressure inside of your engine crank case, cause positive pressure is not good, it will cause blowen seal and oil to be pushed out of you aftermarket breathers if you remove the PCV and just use Breathers.
A - I installed an LS6 valley cover, so I can get rid of A, right? Just attach my PCV valve to the intake manifold and then run it directly into the steel hose-end on the LS6 valley cover? Then somehow cap off the nipple on the rear of the driver's side valve cover?
Also, can I use regular neoprene hose for the PCV system and that vent that runs from the throttle body to the passenger valve cover?
Do I need to put hose clamps on any of these connections?
B - EVAP System: So is there a separate line from the fuel tank that just carries fumes from the fuel tank to the engine in order to get burnt off?
Last edited by FastKat; Mar 11, 2009 at 10:19 AM.
http://www.ls1howto.com/index.php?article=18
Use fuel line from any auto parts store to replace the PCV hoses. The line has to be tough so it won't collapse under vacuum.
Fuel line it is!
http://www.ls1howto.com/index.php?article=18
Use fuel line from any auto parts store to replace the PCV hoses. The line has to be tough so it won't collapse under vacuum.
I still think that C attaches to B somewhere... or what I have been told are the two parts that make up my EVAP system.
I guess I better search to see how the EVAP system works, and what can stay and what can go.
Evap plugs into the manifold port behind the T/B. it is a Brass port. then the other end goes to the hose that leads to the fuel tank.
Why don't you go highjax one of your friends F-Body and take some pictures of the parts and hoses.






