Download Replace the sender fuel feed (transfer) pipe with P/N 10388380. This new pipe has one anti-siphon hole. Also, inspect the RH primary fuel tank module for a clogged/restricted transfer (jet) pump. Use the procedure listed below: 1. Remove the RH primary fuel tank module from the fuel tank. Refer to the Primary Fuel Tank Module Replacement procedure in the Engine Controls sub-section of the Service Manual. 2. Disconnect the electrical connector from the LH secondary fuel tank module. 3. Rotate the cam lock ring counter-clockwise using the J 45747. 4. Remove the cam lock ring from the fuel tank. 5. Carefully lift the LH secondary fuel tank module from the fuel tank only enough to access the transfer pipe. 6. Disconnect the transfer pipe from the LH secondary fuel tank module by pulling the locking mechanism down and away from the module. 7. Remove the transfer pipe from the fuel tank. 8. Install the new transfer pipe into the fuel tank. 9. Connect the transfer pipe to the LH secondary fuel tank module. 10. Install the cam lock to the fuel tank and rotate clockwise using the J 45747 until fully seated. 11. Connect the electrical connector to the LH secondary fuel module. 12. On the RH primary fuel tank module, inspect the jet pump by releasing the tab (1) securing the pump to the module. Position the jet pump with light at the rear and look through the tube. The hole should be clear from debris and not black in color.