Econoline E350 1 Ton V8-5.4L CNG VIN M (1999)
Liquid Vapor Separator: Service and Repair
REMOVAL
1. Remove the fuel tank.
2. Remove the fuel vapor vent valve.
1
Slide the clamp away from the fuel vapor vent valve and remove the evaporative emission canister tube.
2
Press down and rotate the fuel vapor vent valve counterclockwise and remove from the fuel tank.
CAUTION: The fuel vapor vent valve must be disengaged from the fuel tank before it can be removed. While pressing down, rotate the fuel
vapor vent valve counterclockwise to disengage from the fuel tank. Failure to do so can cause damage to the fuel vapor vent valve or the fuel tank.
INSTALLATION
1. Follow the removal procedure in reverse order.
2. Perform the leak test. See: Testing and Inspection/Component Tests and General Diagnostics/EVAP System Leak Test
3. Perform the Evaporative Emission Running Loss Monitor Repair Verification Drive Cycle Test.