IT SHOULD BE ON THE LEFT SIDE OF THE TRANS. IT SHOULD BE COLORED WITH A VACUUM LINE COMING OUT OF IT. REMOVE THE LITTLE BLACK CAP, PULL OUT THE SILVER "T" BAR SO IT PASSES THE PART IT IS LOCKED INTO & TURN COUNTER CLOCKWISE TO ALLOW MORE VACUUM. ADJUST AS NEEDED BUT DON'T MAKE IT TO SOFT OR IT WILL SLIP.