Mono-valve
The auxillary H2O pump (it's actually inside the engine
compartment- from the diagrams for your model) is not
in the "Battery Compartment"
The valve you correctly identified (in front of the battery)as
the Mono-valve is situated vertically.
If you will remove the glove compartment you will see the
vaccum block on the left side and with a Plastic "Mighty-vac"
from Autozone (about $25.00 U.S.) you will be able to self
diagnose (with a vaccum diagram)
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