i've got my sister in law's 98 blazer that i'm doing little work on here and there... and i noticed yesterday that her vacuum lines by the brake booster was busted... it's a TEE fitting... so i replaced one and the other one, i'm lost as to where it goes... there's nowhere else that i'm finding for it to go to... can someone help me out please?!?! shes getting back into town tonight and i want to finish this up before she gets back... thanks in advance...

general location area...


the TEE fitting...


only other vacuum line i see one leg of the TEE goes to...

 

One line goes to the intake manifold (vacuum source) and it has the B/W check valve in it. From there it connects to the T-fittings to distribute vacuum to the heater controls, 4WD actuator, AIR pump, reservoir, just connect 'em all together. The mystery hose that goes under the ABS unit goes to a vacuum reservoir ball inside the driver side fender.