California Vehicles

CHARCOAL CANISTER INSPECTION (California Vehicles)
1. REMOVE CHARCOAL CANISTER.



2. VISUALLY INSPECT CHARCOAL CANISTER: LOOK FOR CRACKS OR DAMAGE.
3. CHECK FOR CLOGGED FILTER, STUCK CHECK VALVE AND DIAPHRAGM.



- While holding port B closed, blow air (1.47 kPa, 1 5 gf/cm2, 0.21 psi) into port A and check that air flows from port D.




- While holding port B and port D closed, blow air (1.47 kPa, 15 gf/cm2, 0.21 psi) into port A and check that air does not flow from port C.




- Apply vacuum (980 Pa, 7.4 mm Hg, 0.29 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 (980 Pa, 7.4 mm Hg, 0.29 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.