WHAT IS THIS???
#16
CF Veteran
Join Date: Apr 2009
Location: Austin, Texas
Posts: 1,109
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Year: 1991
Engine: 4.0 I-6 H.O.
This is the EVAP system for the emission control system on the Jeep, it isnt an A/C component
As far as having no vacuum hose there, Im sure you are having some driveability issues with an open vacuum port somewhere on your XJ
I would replace it pronto, those things are cheap, and easy to replace
the source is a metal tube that come out directly behind the intake manifold
its a small 1/4 line
good luck