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Home >> Subaru >> 1999 >> Forester Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Emission Systems & Sub-Systems >> Exhaust Gas RECIRCULATION (EGR) >> EGR Valve

EGR Valve

  1. Look through opening in EGR valve body and observe valve shaft. Warm engine to normal operating temperature. Increase engine speed and check whether valve shaft moves when engine reaches 3500-4000 RPM under no-load condition.
    NOTE: When cleaning EGR valve, DO NOT wash in solvent or degreaser, or permanent damage to valve diaphragm will result.
  2. If shaft does not move, remove valve and manually check valve movement. If valve appears okay, check vacuum lines for leaks. Clean or replace valve if it does not operate properly.
  3. Press valve diaphragm and inspect valve seat area. Inspect valve inlet and outlet for deposits. Clean as necessary. Blow clean with compressed air. Recheck valve operation by applying 8 in. Hg vacuum with hand-held vacuum pump.
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