B2300 Regular Cab 2WD L4-2.3L VIN A (1997)
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Evaporative Check Valve: Testing and Inspection
Inspection
1. Verify that air flows through the valve from port A when the valve is held as shown in the figure.
2. Verify that no air flows through the valve from port A when the valve is held as shown in the figure.
3. If not as specified, replace the fuel vapor valve.