I bought a 98 blazer from a blind mechanic... The washer fluid rez was sucking air and adding fluid killed the engine. I traced the lines and it was hooked up to this (see photo). For the life of me I can't figure it out! Can someone please identify this? Any info is appreciated!

 

Well it looks like a vacuum ;line that goes in the hole behind it in the picture. And there should be no vacuum lines attached to the washer fluid res. Electric pump

 

Hmm... I did pull it off for the photo. Here is one with it connected. Do u have any idea what it's supposed to be connected to?

 

Brake booster (by steering column) and other vacuum lines. The way it was it sucked window wash into your intalke. Right onto the pistons. Not good