Hello my name is Jon this is my first post . i drive a 1996 blazer Lt 4 door 4x4. i was wondering if theres suppose to be a vacuum line running to the black ball attached to the hood on the driver side. if so where do it come from currently mines does not have anything connected to it????????? hope i gave enough information and thanks in advance

 

Yes there should be. It should go down to a cluster of lines witha 3 spit on them infront of your brake booster. Find the open hole and plug a line from there into the black ball(vacuum Reservoir )

 

thank you very much