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Home >> Ford >> 1998 >> Mustang V6-3.8L VIN 4 >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Evaporative Emissions System >> Testing and Inspection >> EVAP System Leak Test
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EVAP System Leak Test

CAUTION: The evaporative emission system must not be pressurized to more than 3.48 kPa (14 in/H2O) or damage to the evaporative emission system may occur.

1. Connect the Evaporative Emission System Tester to the evaporative emission test port.
2. Using the New Generation Star Tester apply 12 volts to the canister vent solenoid.

NOTE: The ignition system must be in the key on and engine off position.

3. Pressurize the evaporative emissions system to 3.48 kPa (14 in/H2O).
4. Monitor system for two minutes, the system fails leak test if the pressure falls below 2.0 kPa (8 in/H2O).
5. Repair any leaks as required.
6. Repeat the leak test-evaporative emissions system until the system remains above 2.0 kPa (8 in/H2O) after the two minute test period.
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