3.5RL V6-3474cc 3.5L (2001)
Refueling Control Valve: Testing and Inspection
Fuel Tank Vapor Control Valve Test
Float Test
1. Make sure the fuel tank is less than half full.
2. Remove the fuel fill cap to relieve the fuel tank pressure. then reinstall the cap.
3. Remove the fuel hose joint protector. Disconnect the fuel tank vapor recirculation tube, and connect a vacuum pump to the vapor recirculation
tube.
4. Plug the pipe.
5. Apply vacuum to the fuel tank vapor recirculation tube.
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If the vacuum holds, replace the Fuel Tank Vapor Control valve.
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If the vacuum does not hold, the float is OK.
Valve Test
1. Make sure the fuel tank is less than half full.
2. Remove the fuel fill cap.
3. Remove the fuel hose joint protector. Disconnect the fuel tank vapor signal tube.