Let pressure out of the fuel system before you disconnect the battery cable from the negative terminal. After lifting your vehicle, use jackstands to safely hold it up. Position the jackstands so they support the front of the vehicle when working on a Frontier. The fuel filter sits next to the fuel tank on the vehicle's right structural beam. Before starting, carefully remove any dirt from around the tubes going into and out of the fuel filter. Carefully loosen the hose clamps at each end of the filter, and then pull off both hoses, keeping some absorbent material nearby to collect or soak up any gas that might spill. Loosen the nut holding the fuel filter's bracket bolt, and take the filter out of the bracket to work. For crystal clear driving, reverse the steps of removal to install the filter, and make sure to put it in the right way. Also change the spring clamps to screw clamps when possible.