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Home >> Hyundai >> 1990 >> Excel GLS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Emission Systems & Sub-Systems >> Exhaust Gas RECIRCULATION (EGR) System >> EGR Valve
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EGR Valve

  1. Remove EGR valve and check for sticking, carbon deposits and damage. Clean with solvent (if necessary).
  2. Connect a hand-held 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 through EGR ports of valve.
  3. Apply specified EGR valve opening vacuum. See EGR VALVE SPECIFICATIONS table. Ensure air flows through 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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