Nissan Maxima. Instruction — part 664
FUEL SYSTEM
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< PERIODIC MAINTENANCE >
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PERIODIC MAINTENANCE
FUEL SYSTEM
Inspection
INFOID:0000000009469799
Inspect fuel lines, fuel filler cap and fuel tank for improper attach-
ment, leaks, cracks, damage, loose connections, chafing or deterio-
ration.
If necessary, repair or replace damaged parts.
Quick Connector
INFOID:0000000009469800
CAUTION:
• After connecting fuel tube quick connectors, make sure quick
connectors are secure.
• Ensure that connector and resin tube do not contact any adja-
cent parts.
SMA803A
SBIA0504E
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< REMOVAL AND INSTALLATION >
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
REMOVAL AND INSTALLATION
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
Exploded View
INFOID:0000000009469801
Removal and Installation
INFOID:0000000009469802
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.
REMOVAL
1. Unscrew the fuel filler cap to release the pressure inside the fuel tank.
2. Release the fuel pressure from the fuel lines. Refer to
3. Disconnect the battery negative terminal. Refer to
PG-67, "Removal and Installation (Battery)"
1.
Lock ring
2.
Fuel level sensor, fuel filter and fuel
pump assembly
3.
O-ring
4.
Fuel tank
Front
WBIA0749E
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
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< REMOVAL AND INSTALLATION >
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4. 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).
5. Turn the four retainers 90 degrees in a clockwise direction and
remove the fuel pump inspection hole cover.
6. Disconnect the fuel level sensor, fuel filter, and fuel pump
assembly harness connector, EVAP hose quick connector, and
the fuel feed hose quick connector from the fuel level sensor
unit, fuel filter, and fuel pump assembly.
Remove the quick connector 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, etc. 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.
LBIA0337E
LBIA0338E
SFE562A
PBIC0163E
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< REMOVAL AND INSTALLATION >
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
7. Remove the lock ring using a socket drive handle and Tool as
shown.
CAUTION:
Discard the lock ring if damaged or distorted.
8. Remove the fuel level sensor, fuel filter, and fuel pump assembly
and O-ring. Discard the O-ring.
CAUTION:
• Do not bend the float arm during removal.
• Do not reuse the O-ring.
INSPECTION AFTER REMOVAL
Inspect the fuel level sensor, fuel filter, and fuel pump for any defects and foreign materials. Replace as neces-
sary.
INSTALLATION
Installation is in the reverse order of removal.
• Install the fuel level sensor, fuel filter, and fuel pump assembly with
the fuel feed hose facing the front of the vehicle as shown. Use a
new O-ring.
CAUTION:
Do not reuse O-ring.
• Connect the quick connector as follows:
- Check the connection for damage or any foreign materials.
- Align the connector with the tube, then insert the connector straight
into the tube until a click is heard.
• After the tube is connected, make sure the connection is secure by
performing the following checks:
- Pull the tube and the connector to make sure they are securely
connected.
Tool number
: KV991J0090 (J-46214) (shown)
: KV101207S0 ( — )
WBIA0284E
LBIA0339E
LBIA0338E
PBIC1653E
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