Evaporative Emission System Leak Test. General Procedures

Activation

Stage 1 — Leak Check

1. 1
   Run the EVAP test using the diagnostic scan tool.
2. 2
   If the EVAP system fails the EVAP test, go to Stage 2.

Stage 2 - Leak Check the System

1. 1
   Disconnect the quick-connect fitting of the fuel vapor tube from the EVAP canister purge valve.
   Refer to: Quick Connect Fittings (310-00A Fuel System - General Information - 1.5 L EcoBoost (118 kW/160 L hp) - I4, General Procedures).
2. 2
   Connect the VACUTEC Smoke Machine Fuel EVAP tester to the fuel vapor tube quick-connect fitting. Refer to the manufacturer's instructions.
3. 3
   Connect the battery ground cable.
   Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).
4. 4
   Close the canister vent solenoid using the diagnostic scan tool.
5. 5
   Install the auxiliary fuel fill adapter into the Easy Fuel TM fuel tank filler neck assembly (without cap).
6. 6
   Supply smoke from the VACUTEC Smoke Machine Fuel EVAP system tester into the EVAP system and make sure smoke exits from the fuel tank filler neck area. Refer to the manufacturer's instructions for more information.
7. 7
   Remove the auxiliary fuel fill adapter as soon as smoke is seen exiting the fuel tank filler neck area.
8. 8
   Continue to supply smoke into the system for 60 seconds to pressurize it.
9. 9
   Press and release the remote start button at 15-second ON and 15-second OFF intervals during the smoke exit check.
10. 10
    Use the halogen lamp included with the VACUTEC Smoke Machine Fuel EVAP tester to trace the EVAP system path and locate smoke exiting from the leak source(s).
11. 11
    Repair all leaks as necessary.
12. 12
    Repeat the leak test until the system passes.