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Home >> Hyundai >> 1989 >> Excel GL, 4D Hatchback, Standard >> Repair and Diagnosis >> Engine Performance >> System >> System/Component Tests >> Emission Systems & Sub-Systems >> Exhaust Gas RECIRCULATION (EGR) System (Fuel Injection) >> EGR Valve
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EGR Valve

  1. Remove EGR valve and check it for sticking, carbon deposits and damage. Clean with solvent if necessary.
  2. Connect a hand vacuum pump to EGR valve. Apply maximum amount of vacuum to keep EGR valve closed. See EGR VALVE SPECIFICATIONS table. Ensure air does not flow thru EGR ports of valve.
  3. Apply specified EGR valve opening vacuum. See EGR VALVE SPECIFICATIONS table. Ensure air flows thru EGR ports of valve. Replace valve if necessary.
EGR VALVE SPECIFICATIONS

Application In. Hg
Opening Vacuum 6.8
Closed Vacuum 2
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