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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1856 (Evaporative Emissions System - F-150 & Mark LT) >> General Procedures >> Evaporative Emission System Leak Test >> Phase 2 - System Leak Check

Phase 2 - System Leak Check

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the upper fuel vapor tube quick connect coupling from the EVAP canister purge valve. For additional information, refer to FUEL SYSTEM - GENERAL INFORMATION article.
  2. Connect the smoke machine emissions tester to the upper EVAP canister purge valve fitting. For additional information, refer to the manufacturer's instruction.
    3. NOTE: In the scan tool, the EVAP canister purge valve is referred to as the EVMV.
  3. Using the scan tool, energize the EVAP canister purge valve to the open position.
    4. CAUTION: The canister vent solenoid must not be energized for more than 9 minutes at one time. Once the canister vent solenoid is energized and de-energized, adequate time must be allowed for the component to cool adequately. Failure to allow the component to cool may create a false failure in the diagnostics, causing unnecessary repairs.
  4. Using the scan tool, close the canister vent solenoid.
  5. Introduce smoke from the smoke machine emissions tester into the EVAP system. For additional information, refer to the manufacturer's instructions.
  6. Use the halogen light provided with the smoke machine emissions tester to look for smoke coming from the EVAP system. This will indicate a leak point.
  7. Repair any leaks as necessary.
  8. Repeat the leak test until the system passes.
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