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Tests/Procedures: 1. Disconnect the vapor line at the charcoal canister that comes from the liquid vapor separator and goes to the charcoal canister. See if the fuel tank can be easily filled then. 2. If the fuel tank can easily be filled with the vapor line removed from the charcoal canister, reconnect the vapor line and remove the other lines from the charcoal canister and see if the fuel tank can be easily filled. 3. If the fuel tank is once again difficult to fill, replace the charcoal canister. 4. If disconnecting the vapor line at the charcoal canister does NOT make the fuel tank easy to fill, then disconnect the vapor line from the liquid vapor separator at the fuel tank in case the vapor line is plugged/restricted. Potential Causes: Charcoal Canister Liquid Vapor Separator Vapor Line Tech Tips: Fuel vapors are directed to the canister from the ORVR fill vent valve in the gas tank through the liquid vapor separator and to the canister. The metal tube that loops up by the filler neck is part of the vapor line to the canister
