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Home >> Volkswagen >> 1984 >> Vanagon Base, Standard >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc & Drum >> Removal & Installation >> Check Valve >> Function Test

Function Test

  1. Check valve is located in vacuum line between power brake unit, and intake manifold. Blowing into large diameter side should unseat valve.
  2. Valve must seat when test is performed on opposite side. Replace defective valve.
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