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Home >> Peugeot >> 1984 >> 604 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> EGR System - Diesel >> Testing >> Vacuum Check >> Vacuum Supply

Vacuum Supply

  1. Disconnect hose from vacuum converter side of pre-filter. Connect a vacuum gauge to pre-filter in place of hose.
  2. Start the engine. Vacuum should be 17.7 in. Hg or more. If not, check for leaks in vacuum supply circuit.
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