Nissan Sentra. Manual — part 495
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< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
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The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the
battery and wait at least three minutes before performing any service.
General Precaution
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WARNING:
When replacing fuel line parts, be sure to observe the following.
• Put a “CAUTION: FLAMMABLE” sign in the work area.
• Be sure to work in a well ventilated area and have a CO
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fire extinguisher.
• Do not smoke while working on the fuel system. Keep open flames and sparks away from the work
area.
CAUTION:
• Before removing fuel line parts, carry out the following procedures:
- Put drained fuel in an explosion-proof container and put the lid on securely. Keep the container in
safe area.
- Release fuel pressure from the fuel lines. Refer to
EC-49, "EVAPORATIVE EMISSION SYSTEM : Sys-
.
- Disconnect the battery ground cable.
• Always replace O-rings and clamps with new ones.
• Do not kink or twist tubes when they are being installed.
• Do not tighten hose clamps excessively to avoid damaging hoses.
Tighten high-pressure rubber hose clamp so that clamp end
is 3 mm (0.12 in) from hose end.
Tightening torque specifications are the same for all rubber
hose clamps.
Ensure that screw does not contact adjacent parts.
MMA104A
PRECAUTIONS
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• After connecting the fuel tube quick connectors, make sure
the quick connectors are secure.
Check that the connector and resin tube do not contact any
adjacent parts.
- a) Apply fuel pressure to the fuel system by turning the igni-
tion switch to ON (without starting the engine). Then check for
fuel leaks at the fuel tube connections.
- b) Start the engine and rev the engine, then check for fuel
leaks at the fuel tube connections.
• After installing the tubes, run the engine and check for fuel
leaks at the connections.
• Use only a Genuine NISSAN fuel filler cap as a replacement. If
an incorrect fuel filler cap is used, the MIL may come on.
• For servicing “Evaporative Emission System” parts, refer to
EC-49, "EVAPORATIVE EMISSION SYSTEM : System Descrip-
.
PBIC0199E
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< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Special Service Tool
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The actual shape of the tools may differ from those illustrated here.
Commercial Service Tool
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Tool number
(TechMate No.)
Tool name
Description
KV101207S0
( — )
Unified fuel lock ring wrench
Removing and installing fuel tank lock ring
KV991J0090
(J-46214)
Lock ring wrench
JPBIA6384ZZ
ALBIA0951ZZ
Tool name
Description
Power tool
Loosening nuts, screws and bolts
PIIB1407E
FUEL SYSTEM
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< PERIODIC MAINTENANCE >
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PERIODIC MAINTENANCE
FUEL SYSTEM
Inspection
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Inspect fuel lines, fuel filler cap, and fuel tank for improper attach-
ment, leakage, cracks, damage, loose connections, chafing or dete-
rioration.
If necessary, repair or replace damaged parts.
Quick Connector
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CAUTION:
• After connecting fuel tube quick connectors, check quick connectors are secure.
• Ensure that connector and resin tube do not contact any adjacent parts.
(A)
: Engine
(B)
: Fuel line
(C)
: Fuel tank
JPBIA0129ZZ
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