The fuel filter is located near the fuel tank, and will have a fuel line going in one end, and out the other end.Click to see full answer. Furthermore, where is the fuel filter on a Nissan Sentra?On older Sentras the filter is located on the firewall in the engine compartment.Beside above, what kind of gas do you put in a 2014 Nissan Sentra? The fuel should be unleaded and have an octane rating no lower than that recommended for unleaded gasoline. Additionally, how do I check my fuel filter? How to Check a Fuel Filter Locate your fuel filter. Look at the condition of the paper filter inside, if possible. Loosen the hose clamp on the fuel line that goes into the fuel filter from the gas tank by using a flat-head screwdriver to turn the clamp screw counter-clockwise several times . Put the end of the fuel filter over a glass jar. Where is the fuel filter located on a 2000 Nissan Sentra?1 Answer. Fuel filter is inside the pump assembly. Don’t go looking there if there is no problem with it.