LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Eagle >> 1994 >> Talon ES, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Emission Systems & Sub-Systems >> Fuel Evaporation >> Purge Control System Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Purge Control System Inspection

  1. Disconnect Red-striped vacuum hose from purge control solenoid valve at throttle body. Plug throttle body fitting. Connect a hand-held vacuum pump to Red-striped vacuum hose. Plug fitting at throttle body where Red-striped vacuum hose was connected.
  2. With engine cold and coolant temperature less than 140°F (60°C), start engine and let idle. Apply 15 in. Hg vacuum. Ensure vacuum holds. Increase engine speed to 3000 RPM. With vacuum maintained at 15 in. Hg, vacuum should still hold. If vacuum holds, go to next step. If vacuum does not hold, perform individual component testing.
  3. Warm engine until coolant temperature is greater than 158°F (70°C). When coolant temperature is at least 158°F (70°C), stop engine. Restart engine. Within 3 minutes after starting engine, increase engine speed to 3000 RPM. Using hand-held vacuum pump, try applying vacuum. Vacuum should not hold. If vacuum did not hold, go to next step. If vacuum held, perform individual component testing.
    NOTE: When performing next step, if altitude is greater than 7200 feet or intake air temperature is greater than 122°F (50°C), vacuum will leak continuously.
  4. With engine coolant temperature greater than 158°F (70°C) and after 3 minutes have elapsed from starting engine, increase engine speed to 3000 RPM. Using hand-held vacuum pump, try applying vacuum. Vacuum should hold momentarily, then release. If vacuum holds then releases as specified, purge control system is functioning properly. If vacuum does not hold then release as specified (with exception for altitude or intake air temperature), perform individual component testing as required.
scientia non olet · About LEMON Manuals