I have three large hoses going to the diverter valve, and one open vacuum fitting on the bottom. looks like a 3/16 hose goes there. where is the other end of that hose?
it turns out I have a major vacuum hose disconnection infection.
a brown plastic tube that connects to the top of the rear solenoid in the middle
a black plastic tube that connects to the bottom of both solenoids in the middle
and the bottom of the diverter valve
Would help if you filled out all of the information about your rig in your profile. check out this thread to. He covers everything related to the vacuum system from soup to nuts..
Does it look something like this? It would be nice to know your vehicle specs - year, engine/ transmission, etc. :twak
Thermactor Air Diverter (TAD) Valve - located near Firewall
Thermactor Air Bypass (TAB) Valve - Located passenger side
TAB/TAD/EVR Solenoids - Located driver side
Solenoid Vacuum Lines
Vacuum Reservoir (VRES)
1990 OEM Vaccum Line Harness
1990 Vacuum Hose Routing
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