Evaporative Emission Control Canister: Testing and Inspection

1. REMOVE CHARCOAL CANISTER.
2. VISUALLY INSPECT CHARCOAL CANISTER.
- Look for cracks or damage.





3. CHECK FOR CLOGGED FILTER, AND STUCK CHECK VALVE AND DIAPHRAGM.
- While holding port B closed, blow air (1.76 kPa (18 gf/ cm2, 0.26 psi)) into port A and check that air flows from port D.





- While holding port B and port D closed, blow air (1.76 kPa (18 gf/cm2, 0.26 psi)) into port A and check that air does not flow from port C.





- Apply vacuum (3.43 kPa (26 mmHg, 1.01 in.Hg)) to port B, check that the vacuum does not decrease when port C is closed, and check that the vacuum decreases when port C is released.





- While holding port C closed, apply vacuum (3.43 kPa (26 mm Hg, 1.01 in.Hg)) to port A and check that air flows into port B.
- If a problem is found, replace the charcoal canister.
4. REINSTALL CHARCOAL CANISTER.