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On my ls2, I didn't pass the visual on the smog test because I'm missing the pcv connection on the driver's side valve cover on the back. It just has a plug. I pulled my supercharger earlier this year and didn't realize that it mush have been removed for the initial install.
Anyone have pic or part number so I can put it back to stock?
On my ls2, I didn't pass the visual on the smog test because I'm missing the pcv connection on the driver's side valve cover on the back. It just has a plug. I pulled my supercharger earlier this year and didn't realize that it mush have been removed for the initial install.
Anyone have pic or part number so I can put it back to stock?
Here is a pic with part numbers. I'm not sure if what you are after is in this pic, but I'm hoping it is.
On the left side of the engine picture, the valve cover has a black plug. That's what mine has. Smog inspector says there is supposed to be a pcv hose connected. Is he just flat out wrong?
On the left side of the engine picture, the valve cover has a black plug. That's what mine has. Smog inspector says there is supposed to be a pcv hose connected. Is he just flat out wrong?
I have an LS2, so I'll try to get a pic for you as to what is connected there, if anything.
The pic seems to show a PCV type end connector next to that black plug.
I got a few pics, and where it's capped, that's how it's supposed to be for an LS2.
The PVC line goes behind the motor, next to the fuel inlet line by the firewall, then goes under the car towards the back. I didn't follow it under there but pretty sure it's the evaporator line going to the fuel tank.
The tech said the plug is not stock. I don't believe him. I guess I should have left my valve covers on.
According to what I'm reading on this, that port that is capped on the rear of the valve cover on an LS2 is supposed to be that way.
Here is some sort of explanation on PVC routing for an LS2.
The blank is a 3/8" rubber cap GM#12579145 (the black cap in the above picture)
All it does is cap off an outlet that never gets used in LS2 application.
The valve covers are multi-purpose and get used on other engines where this outlet does get used. http://www.ls2.com/forums/showthread...S2-PCV-routing
Thanks. I think I'm going to use a different smog station rather than argue with the tech. If it is illustrated in the service manual then I might go back to him and show him.
Thanks. I think I'm going to use a different smog station rather than argue with the tech. If it is illustrated in the service manual then I might go back to him and show him.
My car is totally stock, so as you can see, that cap is on my valve cover from the factory, as it is in the Crate motor picture that I posted prior.
On the left side of the engine picture, the valve cover has a black plug. That's what mine has. Smog inspector says there is supposed to be a pcv hose connected. Is he just flat out wrong?
he dosent have a clue about what he is talking about.that cap is what the car comes with from the factory on the LS2 Corvette.On the Trailblazer SS LS2 there is a hose going to that fitting
The PCV is internal, located on the underside of the valley cover. There is a port running from the top front right side of the valley cover to the intake manifold port on the ls2.
10-03-2016, 02:16 PM
pcv question
