Padawan Posted February 12, 2017 Share Posted February 12, 2017 Hello everyone! My 87 GL has this thing i believe is some sort of regulating valve connected to the carb bowl vent (?) and intake manifold vacuum. It also has a third hose going from the underside that isn't connected to anything. So my question is what purpose it has and should the third be connected to something? Link to comment Share on other sites More sharing options...
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