i was performing my silicone hose job on my 88 tubo fc today and after i put everything back together i started her up and i heard a vaccum leak. from the firewall side of the UIM there are 2 vaccum lines that i do not know where they connect to.

when i removed the old ones they broke so i dont know where they came from. my car doesnt hold an idle when cold but it was warmed up and idled right where it should it sounded a tiny bit rougher then normal but nothing crazy.

now.. can someone help me as to where these lines should go?
i cannot for the life of me find any areas for these two hoses to connect to.

i have all the emissions removed.. some of the emissions lines are still there but they are capped off. any info would help.. or a diagram would be even better. the ones that i have found on this forum havnt help me figure out whats wrong.

i have a haynes manual and i have a downloaded copy of the FSM.

 

anyone?

 

Have you tried plugging them to see if that had any effect?

 

yes it doesnt and i can still hear the leak when they are plugged

 

well i took it for a test drive and runs exactly as it did before..
nothing crazy.. idles perfectly... boosts great.. sounds good... just as fast.. no loss of power (at least that i could tell on the street..)

is it possible that there is more nose coming from the silicone hoses than from the heat baked stock vacuum lines?