Refueling Control Valve: Altima

Drain and remove fuel tank. See REMOVE/INSTALL/OVERHAUL article. Blow air through refueling control valve port "A" and ensure air flows out of port "B". See Figure. Using vacuum pump, apply 5.91 in. Hg of vacuum to refueling control valve ports "A" and "C" and ensure vacuum does not exist at port "B". If operation is not as specified, replace refueling control valve and retest system.