2003 Nissan Maxima GLE Fuel Pump, Fuel Level Sensor Unit And Fuel Filter Removal
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Identifying Fuel Pump, Fuel Level Sensor Unit And Fuel Filter REMOVAL 1. Release fuel pressure from fuel line. Refer to FUEL PRESSURE RELEASE . 2. 3. 4. 5. Remove rear seat bottom. Remove inspection hole cover located under the rear seat. Disconnect electrical connector. Disconnect the quick connectors. For disconnection of quick connectors, refer to step 6 of “Fuel Tank Removal”. 6. Remove the six screws. 7. Pull out the fuel level sensor unit and fuel pump. Do not damage the arm of the fuel level sensor and fuel tank temperature sensor. 8. Remove flange of fuel level sensor unit and fuel pump. Using a screwdriver, remove the snap fit portion as shown in the figure. 9. Push fuel level sensor flange.
Identifying Fuel Pump, Fuel Level Sensor Unit And Fuel Filter REMOVAL 1. Release fuel pressure from fuel line. Refer to FUEL PRESSURE RELEASE . 2. 3. 4. 5. Remove rear seat bottom. Remove inspection hole cover located under the rear seat. Disconnect electrical connector. Disconnect the quick connectors. For disconnection of quick connectors, refer to step 6 of “Fuel Tank Removal”. 6. Remove the six screws. 7. Pull out the fuel level sensor unit and fuel pump. Do not damage the arm of the fuel level sensor and fuel tank temperature sensor. 8. Remove flange of fuel level sensor unit and fuel pump. Using a screwdriver, remove the snap fit portion as shown in the figure. 9. Push fuel level sensor flange.
Using a screwdriver, remove the snap fit portion as shown in the figure. 10. Pull up the fuel level sensor. 11. Remove fuel filter from pump bracket. Using a screwdriver, remove the snap fit portion as shown in the figure. 12. Remove pressure regulator clip, then pull out pressure regulator. 13. Remove fuel pump, then push down the fuel pump as shown in the figure. 14. Remove packing from fuel pump. 15. Remove the pump support rubber from the fuel pump. INSTALLATION Install in the reverse order of removal paying attention to the following. Install the fuel filter and fuel pump with the tabs aligned, make sure a click sound of secure engagement is heard. Securely connect the harness connector of the fuel pump.
Install the pressure regulator O-ring as follows. CAUTION: When
replacing, always use a new O-ring, packing and clip. Handle it with
bare hands. (Do not use gloves.) Visually check the O-ring, mounting
parts and mating parts for foreign materials and flaws. Before installing, apply new engine oil. To avoid damage, do not apply an excessive force
(pulling or starching). Install the pressure regulator as follows. a.
Insert the clip to the groove of the regulator. b. With the clip
installed, insert the regulator straight by matching the fuel filter protrusion and the clip notch. c. Make sure that the fuel filter protrusion and clip notch are securely engaged.
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