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− *03 01 11-470 EVAP System Fuel Tank Vapor Control Valve Test (cont’d) A A B 7. Connect another vacuum pump/gauge, 0 30 in.Hg, to the fuel tank vapor signal tube (A). 8. Apply vacuum (1 pump) to the fuel tank vapor signal tube (A), then check the vacuum on the • If the vacuum holds, replace the fuel tank vapor control valve (see page 11-471). • If the vacuum is released, go to step 9. 9. Fill the fuel tank with fuel, then check for fuel in the EVAP two way valve (A), and fuel tank vapor NOTE: At either location, tiny droplets of fuel are • If fuel runs out of the hoses at either location, replace the fuel tank vapor control valve. • If the fuel does not run out of the hoses at either location, the fuel tank vapor system is OK. 10. Disconnect the fuel tank vapor vent tube from the EVAP canister, then plug the port on the canister. • If the vacuum holds, replace the fuel tank vapor control valve (see page 11-471). • If the vacuum does not hold, inspect the EVAP canister vent shut valve O-ring. If the O-ring is OK, Check for fuel running out. Check for fuel running out. 05/06/27 17:44:55 61S6M040_110_0470 |