In post 5 with the leaking fuel filter housing that leak is comming from your kill switch. It has two orings on its shaft. It was probably overtightened and crushed them.

My 99 uses vacuum very little so am not much help there.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)