Vacuum lines under intake manifold.

[spooln1]

what are these vacuum lines for? The ones that run underneath the intake manifold?

 

[gofer]

Emissions.

 

[spooln1]

please be more specific. I have looked at taboos vacuum diagram and these arent on there. thanks

 

[gofer]

If you want me to be more specific you're going to have to be more specific too, which vacuum lines are you referring to? Circle in MS Paint or something.

 

[spooln1]

this work for ya?

 

[NOSLO2PT0]

Those are for emissions as well as the FPR/EGR solenoids found on the firewall right above the brake booster. On the passenger side, they go to the EGR valve, as well as run to the thermo valve on the water neck. That specific enough?

 

[gofer]

Those three vacuum lines you circled are emissions related, I wish I could help more and tell you exactly where they connect but seeing is how I'm 2,000 miles away doesn't make that possible. If you look closely at the vacuum lines they'll have colored dashes on the side of them which signify where they go in the emissions system. Use the vacuum diagram on the underside of your hood, its a sticker showing you exactly how they should be connected.

You can also use this VFAQ article we've got as well, hopefully it helps.

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G = Green
R = Red
Y = Yellow

 

[spooln1]

Yah that helps. The reason I was confused is because they werent going to the FPR solenoid, EGR, Or Thermal Expansion valve. Previous owner I think had them hooked up to the old boost control solenoid. Which made no since to me. Ill just rip them all out and call it good. Thanks guys.