GM 25163684 Filter,Fuel

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On 2006 and later vehicles, the fuel filter is an integral part of the fuel pump module and is not serviceable. Begin by relieving the fuel system pressure and disconnecting the cable from the negative terminal of the battery. Raise the rear of the vehicle and support it securely on jackstands. Detach the fuel line fittings from the filter; some models use a threaded fitting on one end and a quick-connect fitting on the other. For a threaded fitting, unscrew it using a flare-nut wrench while holding the hex on the filter with an open-end wrench. For a quick-connect fitting, squeeze the plastic tabs and pull the line off the filter, using an open-end wrench on the filter to prevent twisting. If a quick-connect fitting is present, twist it 1/4 turn in each direction to loosen debris, then blow out any dirt from the connector. Remove the filter from the clip or bracket, noting that later models do not use a mount as the filter is supported by the line with the threaded fitting. Install the new filter securely into the clip or bracket if equipped, ensuring that any arrow on the filter points in the direction of fuel flow toward the engine. Wipe off the male end of the connector on the filter and apply a drop of clean engine oil onto the connector where it inserts into the female connector. Position the new filter so the arrow points toward the engine and reattach the fuel lines to the filter, using new O-ring seals where present. For quick-connect fittings, push the female connector onto the fuel filter's male connector until the plastic tabs snap and lock into place, then pull on the female end of each quick-connect fitting to ensure it is securely locked. Finally, reconnect the battery cable, pressurize the fuel system by turning the ignition key to the On position, and check for fuel leaks.