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2. Install the J 34730-1A . 3. Loosen the fuel fill cap in order to relieve fuel tank vapor pressure. 4. Open the valve on the J 34730-1A in order to bleed the system pressure. The fuel connections are now safe for servicing. 5. Drain any fuel remaining in the gauge into an approved container. 6. Once the system pressure is completely relieved, remove the J 34730-1A . 7. Raise and suitably support the vehicle. Important Clean the fuel filter connections and surrounding area before disconnecting the fuel lines in order to avoid possible fuel system contamination. 8. Using a flare nut wrench and a backup wrench, disconnect the fuel line fitting from the fuel filter. 9. Pull the quick-connect fitting back until the internal retainers hit the filter stop. 10. Twist one end of the J 46363 – Fuel Line Disconnect Tool and insert it between the quick-connect fitting and the filter. 11. Twist the opposite end of the J 46363 – Fuel Line Disconnect Tool and insert it between the quick-connect fitting and the filter. 12. Once the J 46363 – Fuel Line Disconnect Tool is inserted, ensure the tool is parallel to the filter and the fitting. 13. While holding the filter, push the quick-disconnect fitting towards the filter in order to disconnect the quick- connect fitting. 14. Remove the quick-connect fitting from the filter. 15. Remove the filter from the bracket. 16. Install the new fuel filter, P/N 15173334 or P/N 25164003 (A/C Delco P/N GF847), to the bracket. 17. While holding the filter, push the fitting towards the filter in order to connect the quick-connect fitting. 18. Using a flare nut wrench and a back up wrench, connect the fuel line fitting to the filter. 19. Position the fuel sensor bracket into place and install the two nuts. Tighten Tighten the two nuts to 17 N·m(13 lb ft). 20. Lower the vehicle. 21. Tighten the fuel cap. 22. Connect the negative battery cable.
