Nissan Maxima. Instruction — part 665
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
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- Visually confirm that the two retainer tabs are connected to the
quick connector.
INSPECTION AFTER INSTALLATION
Use the following procedure to check for fuel leaks.
1. Turn the ignition switch to ON (without starting the engine) to apply fuel pressure to the fuel system, then
check the connections for fuel leaks.
2. Start the engine and let it idle and check for fuel leaks at the fuel system connections.
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FUEL TANK
FUEL TANK
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Removal and Installation
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WARNING:
Read “General Precautions” before working on the fuel system. Refer to
.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
1.
Fuel filler cap
2.
Grommet
3.
Fuel filler tube
4.
Fuel tank
5.
Fuel filler hose
6.
Fuel tank protector
7.
Fuel tank mounting straps
8.
O-ring
9.
Fuel level sensor, fuel filter and fuel
pump assembly
10. Lock ring
Front
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FUEL TANK
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REMOVAL
1. Disconnect the battery negative terminal. Refer to
PG-67, "Removal and Installation (Battery)"
2. Open the fuel filler cap to release the pressure inside the fuel tank.
3. Release fuel pressure from fuel line. Refer to
4. Check the fuel level with the vehicle on a level surface. If the fuel
gauge indicates more than the level as shown (7/8 full), drain
the fuel from the fuel tank until the fuel gauge indicates a level at
or below as shown (7/8 full).
• In case the fuel pump does not operate, use the following pro-
cedure.
a. Insert fuel tubing of less than 25mm (0.98in) diameter into the
fuel filler tube through the fuel filler opening to drain fuel from the
fuel filler tube.
b. Disconnect the fuel filler hose from the fuel filler tube.
c. Insert fuel tubing into the fuel tank through the fuel filler hose to
drain fuel from the fuel tank.
• As a guide, the fuel level reaches or is less than the level on the fuel gauge as shown, when approxi-
mately 10 (2 5/8 US gal, 2 1/4 Imp gal) of fuel is drained from a full fuel tank.
5. Remove the rear seat cushion. Refer to
SE-70, "Removal and Installation"
CLIMATE CONTROLLED SEATS),
SE-73, "Removal and Installation"
(with split seatback, WITH CLI-
MATE CONTROLLED SEATS),
SE-128, "Removal and Installation"
(with fixed seatback, W/O CLIMATE
CONTROLLED SEATS)
SE-131, "Removal and Installation"
(with split seatback, W/O CLIMATE CON-
TROLLED SEATS).
6. Turn the four retainers 90 degrees in a clockwise direction and
remove the fuel pump inspection hole cover.
7. Disconnect the fuel level sensor, fuel filter, and fuel pump
assembly harness connector, EVAP hose quick connector, and
fuel feed hose quick connector.
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FUEL TANK
a. Disconnect the quick connectors as follows:
• Hold the sides of the connector, push in tabs and pull out the
tube.
• If the connector and the tube are stuck together, push and pull
several times until they start to move. Then disconnect them
by pulling.
CAUTION:
• The tube can be removed when the tabs are completely
depressed. Do not twist it more than necessary.
• Do not use any tools to remove the quick connector.
• Keep the resin tube away from heat. Be especially careful
when welding near the tube.
• Prevent acid liquid such as battery electrolyte, from getting on the resin tube.
• Do not bend or twist the tube during installation and removal.
• Only when the tube is replaced, remove the remaining retainer on the tube or fuel level sensor,
fuel filter, and fuel pump assembly.
• When the tube or fuel level sensor, fuel filter, and fuel pump assembly is replaced, also replace
the retainer with a new one (green colored retainer).
• To keep the connecting portion clean and to avoid dam-
age and foreign materials, cover them completely with
plastic bags or something similar.
8. Remove the center exhaust tube, with muffler. Refer to
EX-5, "Removal and Installation"
.
9. Disconnect the fuel filler hose and recirculation hose at the fuel
tank side.
10. Disconnect the three parking brake cable mounting brackets on each cable and position the cables out of
the way. Refer to
.
11. Remove rear stabilizer bar clamps, then allow stabilizer bar to hang. Refer to
.
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