Shock NISSAN TEANA 2003 Owner's Guide

EM-32
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SPARK PLUG(PLATINUM-TIPPED TYPE)

SPARK PLUG(PLATINUM-TIPPED TYPE)PFP:22401
Removal and InstallationBBS00592
REMOVAL
1. Remove engine cover. Refer to EM-19, "INTAKE MANIFOLD" .
2. Remove ignition coil. Refer to EM-31, "
IGNITION COIL" .
3. Remove spark plug with spark plug wrench (commercial service
tool).
CAUTION:
Do not drop or shock it.
INSPECTION AFTER REMOVAL
Use standard type spark plug for normal condition.
Hot type spark plug is suitable when fouling occurs with standard type spark plug under conditions such as:

Frequent engine starts

Low ambient temperatures
Cold type spark plug is suitable when spark plug knock occurs with standard type spark plug under conditions
such as:

Extended highway driving

Frequent high engine revolution
1. Ignition coil 2. Spark plug 3. Rocker cover
KBIA1974J
SEM294A
MakeNGK
Standard typePLFR5A-11
Hot typePLFR4A-11
Cold typePLFR6A-11
Gap (Nominal) : 1.1 mm (0.043 in)

SPARK PLUG(PLATINUM-TIPPED TYPE)
EM-33
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CAUTION:

Do not drop or shock spark plug.

Do not use wire brush for cleaning.

If plug tip is covered with carbon, spark plug cleaner may
be used.

Checking and adjusting plug gap is not required between
change intervals.
INSTALLATION
Installation is the reverse order of removal.Cleaner air pressure:
Less than 588 kPa (5.88 bar, 6 kg/cm
2 , 85 psi)
Cleaning time:
Less than 20 seconds
SMA773C
SMA806CA

CAMSHAFT
EM-43
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b. Push in chain tensioner plunger. Insert a stopper pin into hole on
chain tensioner body to secure chain tensioner plunger and
remove chain tensioner.
CAUTION:
Be careful not to drop mounting bolts inside front cover.
NOTE:
Use approximately 0.5 mm (0.02 in) dia. hard metal pin as a
stopper pin.
c. Secure hexagonal part of camshaft with wrench. Loosen cam-
shaft sprocket mounting bolts and remove camshaft sprockets.
CAUTION:

Do not loosen mounting bolts with securing anything
other than the camshaft hexagonal part or with tension-
ing timing chain.

Do not rotate crankshaft or camshaft while timing chain
is removed. It causes interference between valve and pis-
ton.
NOTE:
Chain tension holding work is not necessary. Crankshaft
sprocket and timing chain do not disconnect structurally while
front cover is attached.
9. Remove camshaft position sensor (PHASE) from cylinder head back side.
CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble.

Do not allow metal powder to adhere to magnetic part at sensor tip.

Do not place sensor in a location where it is exposed to magnetism.
10. Loosen mounting bolts in reverse order as shown in the figure,
and remove camshaft brackets.

Remove camshaft bracket (No. 1) by slightly tapping it with
plastic hammer.
11. Remove camshafts.
12. Remove valve lifters.

Identify installation positions, and store them without mixing them up.
KBIA0048E
KBIA0049E
SBIA0255E

CYLINDER BLOCK
EM-83
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A widely use engine stand can be used.
CAUTION:
Use engine stand that has a load capacity [approximately
150 kg (331 lb) or more] large enough for supporting the
engine weight.
NOTE:
This example is an engine stand for holding at transaxle
mounting side with drive plate removed.
3. Drain engine oil. Refer to LU-9, "
Changing Engine Oil" .
4. Drain engine coolant by removing water drain plug from inside of
engine.
5. Remove cylinder head. Refer to EM-65, "
CYLINDER HEAD" .
6. Remove knock sensor.
CAUTION:
Carefully handle knock sensor avoiding shocks.
7. Remove crankshaft position sensor (POS).
CAUTION:

Avoid impacts such as a dropping.

Do not disassemble.

Keep it away from metal particles.

Do not place sensor in a location where it is exposed to
magnetism.
8. Remove drive plate.

Secure drive plate with stopper plate, and remove mounting
bolts.
NOTE:
Use TORX socket (size E20).
CAUTION:
Be careful not to damage or scratch drive plate.
PBIC0085E
PBIC2443E
PBIC2191E
PBIC2352E

AIR CLEANER AND AIR DUCT
EM-131
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AIR CLEANER AND AIR DUCTPFP:16500
Removal and InstallationBBS004VP
REMOVAL
1. Remove air duct (inlet).
2. Disconnect harness connector from mass air flow sensor.
3. Disconnect PCV hose.
4. Remove air cleaner cases (upper and lower) with mass air flow sensor and air duct assembly disconnect-
ing their joints.

Add mating marks as necessary for easier installation.
5. Remove mass air flow sensor from air cleaner case (upper), as necessary.
CAUTION:
Handle mass air flow sensor with following cares.

Do not shock it.

Do not disassemble it.

Do not touch its sensor.
6. Remove resonator, removing left side fender protector (front), as necessary. Refer to EI-23, "
FENDER
PROTECTOR" .
1. Air cleaner case (lower) 2. Air cleaner filter 3. Air cleaner case (upper)
4. Air duct assembly 5. Harness bracket 6. Mass air flow sensor
7. O-ring 8. PCV hose 9. Air duct (inlet)
10. Clip 11. Resonator 12. Bracket
13. Grommet 14. Bracket
PBIC2451E

EM-134
[VQ]
INTAKE MANIFOLD COLLECTOR


Refer to GI-10, "Components" for symbol marks in the figure.
NOTE:
The figure illustrates VQ35DE as an example. Each part form of VQ23DE is different from VQ35DE for differ-
ence of port diameter and so forth. Only portions which structures (components) differ are illustrated.
REMOVAL
WARNING:
To avoid the danger of being scalded, do not drain engine coolant when engine is hot.
NOTE:
Show VQ35DE as an example unless the figure includes specification.
1. Remove engine cover.
CAUTION:
Be careful not to damage or scratch engine cover.
2. Remove air cleaner case (upper) with mass air flow sensor and air duct assembly. Refer to EM-131, "
AIR
CLEANER AND AIR DUCT" .
3. Drain engine coolant, or when water hoses are disconnected, attach plug to prevent engine coolant leak-
age. Refer to CO-34, "
Changing Engine Coolant" .
CAUTION:
Perform this step when engine is cold.
4. Remove electric throttle control actuator as follows:
a. Disconnect harness connector.
b. Loosen mounting bolts in the reverse order as shown in the fig-
ure.
CAUTION:

Handle carefully to avoid any shock to electric throttle
control actuator.

Do not disassemble.
5. Disconnect water hoses from intake manifold collector (upper).

When engine coolant is not drained from radiator, attach plug to water hoses to prevent engine coolant
leakage.
PBIC2454E
KBIA2007J

EXHAUST MANIFOLD AND THREE WAY CATALYST
EM-141
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3. Remove exhaust front tube mounting bracket and then remove exhaust front tube. Refer to EX-2,
"EXHAUST SYSTEM" .
4. Remove heat insulator.
5. Disconnect harness connector and remove heated oxygen sen-
sor 1 on both banks with heated oxygen sensor wrench (SST).

Put marks to identify installation positions of each heated oxy-
gen sensor 1.
CAUTION:

Be careful not to damage heated oxygen sensor 1.

Discard any heated oxygen sensor 1 which has been
dropped onto a hard surface such as a concrete floor;
replace with a new sensor.
NOTE:
Figure is shown as an example of left bank.
6. Disconnect harness connector and remove heated oxygen sen-
sor 2 on both banks with heated oxygen sensor wrench (SST).

Put marks to identify installation positions of each heated oxy-
gen sensor 2.
CAUTION:

Be careful not to damage heated oxygen sensor 2.

Discard any heated oxygen sensor 2 which has been
dropped onto a hard surface such as a concrete floor;
replace with a new sensor.
7. Remove exhaust manifold covers (right and left banks) and three way catalyst covers.
8. Remove mounting bolts in the reverse order as shown in the fig-
ure to remove three way catalyst supports (right and left banks).
9. Remove three way catalysts (right and left banks) by loosening bolts first and then removing nuts.
CAUTION:
Handle carefully to avoid any shock to three way catalyst.
PBIC2503E
PBIC2462E
PBIC2544E
PBIC2463E

EM-146
[VQ]
OIL PAN AND OIL STRAINER

CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
3. Remove the following:

Engine cover; Refer to EM-133, "INTAKE MANIFOLD COLLECTOR" .

Splash guard (RH)

Exhaust front tube; Refer to EX-2, "EXHAUST SYSTEM" .

Drive belts; Refer to EM-128, "DRIVE BELTS" .
4. Remove A/C compressor with piping connected, and temporarily secure it to aside. Refer to ATC-133,
"Components" .
5. Remove three way catalysts (right and left banks) from exhaust manifolds (right and left banks). Refer to
EM-140, "
EXHAUST MANIFOLD AND THREE WAY CATALYST" .
6. Remove oil pressure switch. Refer to LU-20, "
OIL PRESSURE CHECK" .
7. Remove crankshaft position sensor (POS).
CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble.

Do not allow metal powder to adhere to magnetic part at sensor tip.

Do not place sensor in a location where it is exposed to magnetism.
8. Remove oil filter. Refer to LU-22, "
OIL FILTER" .
9. Remove oil cooler and water pipes (VQ35DE). Refer to LU-23, "
OIL COOLER (VQ35DE)" .
10. Remove oil pan (lower) as follows:
a. Loosen mounting bolts in the reverse order as shown in the fig-
ure.
b. Insert seal cutter (SST) between oil pan (lower) and oil pan
(upper).
CAUTION:

Be careful not to damage the mating surfaces.

Do not insert screwdriver, this will damage the mating
surfaces.
c. Slide seal cutter by tapping on the side of the tool with hammer.
Remove oil pan (lower).
PBIC0782E
SEM365ED

EM-152
[VQ]
IGNITION COIL

IGNITION COILPFP:22448
Removal and InstallationBBS004VV
REMOVAL
1. Remove engine cover. Refer to EM-133, "INTAKE MANIFOLD COLLECTOR" .
2. Remove intake manifold collectors (upper and lower). (At the right bank side, remove ignition coil) Refer to
EM-133, "
INTAKE MANIFOLD COLLECTOR" .
3. Move aside harness, harness bracket, and hoses located above ignition coil.
4. Disconnect harness connector from ignition coil.
5. Remove ignition coil.
CAUTION:
Do not drop or shock it.
INSTALLATION
Installation is the reverse order of removal.
1. Ignition coil 2. Spark plug 3. Rocker cover
A. Left bank
PBIC4359E

SPARK PLUG (PLATINUM-TIPPED TYPE)
EM-153
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SPARK PLUG (PLATINUM-TIPPED TYPE)PFP:22401
Removal and InstallationBBS004VW
REMOVAL
1. Remove engine cover. Refer to EM-133, "INTAKE MANIFOLD COLLECTOR" .
2. Remove ignition coil. Refer to EM-152, "
IGNITION COIL" .
3. Remove spark plug using spark plug wrench (commercial ser-
vice tool).
CAUTION:
Do not drop or shock it.
INSPECTION AFTER REMOVAL
Use standard type spark plug for normal condition.
Hot type spark plug is suitable when fouling occurs with standard type spark plug under conditions such as:

Frequent engine starts

Low ambient temperatures
Cold type spark plug is suitable when spark plug knock occurs with standard type spark plug under conditions
such as:

Extended highway driving

Frequent high engine revolution
1. Ignition coil 2. Spark plug 3. Rocker cover
A. Left bank
PBIC4359E
SEM294A
MakeNGK
Standard typePLFR5A-11
Hot typePLFR4A-11
Cold typePLFR6A-11
Gap (Nominal) : 1.1 mm (0.043 in)