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Home >> Hyundai >> 1997 >> Tiburon Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Emission Systems & Sub-Systems >> Fuel Evaporation >> System Test
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System Test

  1. Disconnect vacuum hose between throttle body and purge control solenoid. Connect a hand-held vacuum pump to purge control solenoid. Plug vacuum port on throttle body.
  2. With engine at idle and engine coolant temperature at 140°F (60°C) or less on 4-cylinder or 104°F (40°C) or less on V6, apply 7.3 in. Hg vacuum. Vacuum should hold. Increase engine speed to 3000 RPM and again apply 7.3 in. Hg vacuum. Vacuum should hold.
  3. With engine at idle and coolant temperature at 158°F (70°C) or more on 4-cylinder or 176°F (80°C) or more on V6, apply 7.3 in. Hg vacuum. Vacuum should hold. Turn engine off. Start engine and apply vacuum within 3 minutes of starting engine. Vacuum should bleed down.
  4. With engine running for more than 3 minutes after starting, increase engine speed to 3000 RPM and apply 7.3 in. Hg vacuum. Vacuum should hold momentarily and then bleed down.
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