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Home >> Volkswagen >> 1983 >> Scirocco Base, Automatic >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc & Drum >> Removal And Installation >> Check Valve Function Test

Check Valve 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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