[kenman1717]

2003 2wd s10 xtreme w/ 4.3. found this mystery vacuum hose by the master cylinder that goes nowhere. I was removing some aftermarket wiring and saw this little joiner piece of hose rotten so I replace it, but the other end of the t-fitting went nowhere, but it was also pretty rotten, and the end was swelled up like it had been plugged onto something for a long time. the hose comes from what looks like the intake, comes back and sits on top of the brake booster, then has what looks like a little check valve, then the t-fitting, the little hose I replace connects to a hard plastic like that joins the harness and goes inside, but the other end of the t-fitting hose is loose, and the other part of the hose is fixed in place so I can't move it anywhere, but I cannot for the life of me find where it goes.