Nissan Sentra Service Manual: Removal and installation
EXHAUST SYSTEM
Exploded View

- Sub muffler
- Spring
- Mounting rubber
- Seal bearing
- Catalyst shroud (upper)
- Seal bearing
- Exhaust front tube
- Spring
- Catalyst shroud (lower)
- Clamp
- Heated oxygen sensor 2
- Ring gasket
- Mounting rubber
- Main muffler
- Exhaust finisher (if equipped)
- To exhaust manifold
Removal and Installation
REMOVAL
- Disconnect each joint and mounting rubber.
- Remove heated oxygen sensor 2 (1) using Tool (A).
Tool number : KV10114400 (J-38365)

CAUTION:
- Discard any heated oxygen sensor which has been dropped
from a height of more than 0.5 m (19.7 in) onto a hard surface
such as a concrete floor; use a new one.
- Before installing new heated oxygen sensor, clean exhaust
system threads using oxygen sensor thread cleaner and
approved anti-seize lubricant.
Oxygen sensor thread cleaner : J-43897-12
Oxygen sensor thread cleaner : J-43897-18
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
- Always replace seal bearings with new ones when reassembling.
- Discard any heated oxygen sensor 2 which has been dropped onto a
hard surface such as a concrete
floor. Use a new one.
- Before installing a new heated oxygen sensor 2, clean exhaust
system threads using the oxygen
sensor thread cleaner and apply anti-seize lubricant.
- Do not over tighten heated oxygen sensor 2. Doing so may cause
damage to the heated oxygen sensor
2, resulting in the “MIL” coming on.
- Prevent rust preventives from adhering to the sensor body.
- If heat insulator is badly deformed, repair or replace it. If
deposits such as mud pile up on the heat
insulator, remove them.
- When installing heat insulator avoid large gaps or interference
between heat insulator and each
exhaust pipe.
- Remove deposits from the sealing surface of each connection.
Connect them securely to avoid gas
fume leaks.
- When installing each mounting rubber, use silicon oil to avoid
twisting.
- Temporarily tighten nuts and bolts. Check each part for unusual
interference and mounting rubber
interference, and then tighten them to the specified torque.
- When installing each mounting rubber, avoid twisting or unusual
extension in up/down, front/rear
and right/left directions.
Exhaust Manifold to Exhaust Front Tube
- Securely insert seal bearing (2) into exhaust manifold (1) in the
direction shown.
- Spring
- Nut
- Stud bolt
- Exhaust front tube

CAUTION:
Be careful not to damage seal bearing surface when installing.
- Install spring and tighten nut.
CAUTION:
- Fasten stud bolts to the flange of exhaust manifold side to the
specified torque before installing
nuts.
- Ensure springs are seated correctly on the flange and not sitting
on protrusion (A).
- Be careful that stud bolt does not interfere with mounting hole of
exhaust front tube (
).
- After installing, check that stud bolt does not interfere with mounting
hole of exhaust front tube.
Exhaust Front Tube to Center Muffler
- Securely insert seal bearing (2) into exhaust front tube (1) in the
direction shown.

- Spring
- Bolt
- Center muffler
CAUTION:
Be careful not to damage seal bearing surface when installing.
- Install spring and tighten bolt.
CAUTION:
- Ensure springs are seated correctly on the flange and not sitting
on protrusion (A).
- Be careful that bolt does not interfere with mounting hole of
center muffler (
).
- After installing, check that bolt does not interfere with mounting hole
of center muffler.
Inspection
INSPECTION AFTER INSTALLATION
- Check clearance between tail tube and rear bumper is even.
- With engine running, check exhaust tube joints for gas fume leaks and
unusual noises.
- Check to ensure that mounting brackets and mounting rubbers are
installed properly and free from undue
stress. Improper installation could result in excessive noise and vibration.
EXHAUST SYSTEM
Inspection
Check exhaust pipes, muffler, and mounting for improper attachment,
leakage, cracks, damage or deterioration.
If anything is found, repair or replace damaged parts.
...
Other materials:
Normal operating condition
Description
Symptom
Result
Slight vibrations are felt on the brake pedal and operation noises
occur when VDC, TCS or ABS is activated.
This is a normal condition
due to the VDC,
TCS or ABS activation.
Stopping distance is longer than that of vehicles without ...
Avoiding collision and rollover
WARNINGFailure to operate this vehicle in a safe
and prudent manner may result in loss of
control or an accident.
Be alert and drive defensively at all times. Obey
all traffic regulations. Avoid excessive speed,
high speed cornering, or sudden steering maneuvers,
because these ...
Front wheel hub and knuckle
Inspection
COMPONENT PART
Check that the mounting conditions (looseness, backlash) of each component
and component conditions
(wear, damage) are normal.
WHEEL HUB ASSEMBLY (BEARING-INTEGRATED TYPE)
Check the following items, and replace the part if necessary.
Move the wheel hub and bearin ...
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