Originally Posted by greazzer

I suggest you track along the advice given here and also look at the information from Sun Valley. The initial level set is fluid and filter change which includes the torque converter drained. The latter should be done anyway at the intervals in your owners manual. There are a half dozen points where you could have a vacuum loss. I would get a gauge and measure your vacuum from the pump back to your modulator. Pray you do not have the red capped one since they are NLA and their occasional appearance on e B a y makes you not appreciate Mercedes