2003 NISSAN TEANA check engine

EM-22
[QR]
INTAKE MANIFOLD

INSPECTION AFTER INSTALLATION
Make sure there are no fuel leaks at connections with the following procedure:
1. Apply fuel pressure to fuel lines with turning ignition switch “ON” (with engine stopped). Then make sure
there are no fuel leaks at connections.
NOTE:
Use mirrors for checking on invisible points.
2. Start engine. With engine speed increased, make sure again there are no fuel leaks at connections.
CAUTION:
Do not touch the engine immediately after stopped as engine becomes extremely hot.

EM-24
[QR]
EXHAUST MANIFOLD AND THREE WAY CATALYST

c. Using heated oxygen sensor wrench (SST), remove heated oxy-
gen sensors.
CAUTION:

Be careful not to damage heated oxygen sensor.

Discard any heated oxygen sensor which has been
dropped onto a hard surface such as a concrete floor;
replace with a new one.
6. Remove exhaust manifold stay.
7. Remove exhaust manifold cover (upper).
8. Loosen nuts in reverse order as shown in the figure to remove
exhaust manifold and three way catalyst assembly.
NOTE:
Disregard No. 6 and 7 when loosening.
9. Remove gasket.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
10. Remove exhaust manifold cover (lower) and three way catalyst cover from exhaust manifold and three
way catalyst assembly.
INSPECTION AFTER REMOVAL
Surface Distortion

Using straightedge and feeler gauge, check the surface distor-
tion of exhaust manifold and three way catalyst assembly mating
surface.

If it exceeds the limit, replace exhaust manifold and three way
catalyst assembly.
INSTALLATION
Note the following, and install in the reverse order of removal.
Exhaust Manifold

If stud bolts were removed, install them and tighten to the specified torque below.
KBIA0094E
KBIA0045E
Limit : 0.3 mm (0.012 in)
KBIA0046E
: 14.7 N·m (1.5 kg-m, 11 ft-lb)

EM-30
[QR]
OIL PAN AND OIL STRAINER

INSPECTION AFTER INSTALLATION
1. Check engine oil level and adjust engine oil. Refer to LU-7, "ENGINE OIL" .
2. Start engine, and make sure there is no leaks of engine oil.
3. Stop engine and wait for 10 minutes.
4. Check engine oil level again. Refer to LU-7, "
ENGINE OIL" .

FUEL INJECTOR AND FUEL TUBE
EM-37
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EM

2. Install fuel injector to fuel tube with the following procedure:
a. Insert clip into clip mounting groove on fuel injector.

Insert clip so that protrusion “A” of fuel injector matches cutout
“A” of clip.
CAUTION:

Do not reuse clip. Replace it with a new one.

Be careful to keep clip from interfering with O-ring. If
interference occurs, replace O-ring.
b. Insert fuel injector into fuel tube with clip attached.

Insert it while matching it to the axial center.

Insert fuel injector so that protrusion “B” of fuel tube matches
cutout “B” of clip.

Make sure that fuel tube flange is securely fixed in flange fix-
ing groove on clip.
c. Make sure that installation is complete by checking that fuel
injector does not rotate or come off.

Make sure that protrusions of fuel injectors are aligned with
cutouts of clips after installation.
3. From the engine rear side, set fuel tube and fuel injector assembly at its position for installation on intake
manifold.
CAUTION:
When installing, be careful to avoid any interference with fuel injector.
4. Set fuel tube protector onto fuel tube.
5. Tighten mounting bolts with the following procedure.

Tighten bolts evenly in two steps in numerical order as shown
in the figure.
6. Connect sub-harness for fuel injector.
7. Note the following, and connect quick connectors at engine side and vehicle side to install fuel feed hose.
NOTE:
There is quick connector for the engine side and for the vehicle side, and they have different shapes. But
connection is same procedure. The following procedure shows the engine side.
a. Check the connection for foreign material and damage.
b. Align center to insert quick connector straightly into fuel tube.

Insert quick connector to fuel tube until the top spool on fuel
tube is inserted completely and the second level spool is posi-
tioned slightly below quick connector bottom end.
CAUTION:

Hold “A” position in the figure when inserting fuel tube
into quick connector.

Carefully align center to avoid inclined insertion to pre-
vent damage to O-ring inside quick connector.
PBIC2651E
1st step
: 10.1 N·m (1.0 kg-m, 7 ft-lb)
2nd step
: 23.6 N·m (2.4 kg-m, 17 ft-lb)
PBIC2180E
KBIA0272E

EM-38
[QR]
FUEL INJECTOR AND FUEL TUBE


Insert until you hear a “click” sound and actually feel the engagement.

To avoid misidentification of engagement with a similar sound, be sure to perform the next
step.
c. Before clamping fuel feed hose with hose clamps, pull quick connector hard by hand holding “A” position.
Make sure it is completely engaged (connected) so that it does not come out from fuel tube.
d. Install quick connector cap to quick connector connection. (On
both the engine side and the vehicle side)

Install so that the arrow mark on the side faces up.
CAUTION:

Make sure that quick connector and fuel tube are
securely fit into quick connector cap installation groove.

If quick connector cap cannot be installed smoothly,
quick connector may have not been installed correctly.
Check connection again.
NOTE:
There is quick connector cap for the engine side and for the
vehicle side, and they have different shapes. The figure shows engine side as an example.
8. Install fuel feed hose to hose clamp.
9. Install in the reverse order of removal after this step.
INSPECTION AFTER INSTALLATION
Check on Fuel Leaks
1. Apply fuel pressure to fuel lines with turning ignition switch “ON” (with engine stopped). Then make sure
there are no fuel leaks at connections.
NOTE:
Use mirrors for checking on invisible points.
2. Start engine. With engine speed increased, make sure again there are no fuel leaks at connections.
CAUTION:
Do not touch the engine immediately after stopped as engine becomes extremely hot.
PBIC2348E

CAMSHAFT
EM-49
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EM

CAUTION:
After installation, pull the stopper pin off completely, and make sure that chain tensioner plunger
is released.
8. Install chain guide.
9. Install intake valve timing control cover with the following procedure:
a. Install oil rings to the intake camshaft sprocket insertion points on backside of intake valve timing control
cover.
b. Install O-ring to front cover.
c. Apply liquid gasket with tube presser [SST: WS39930000] to
intake valve timing control cover as shown in the figure.
Use Genuine Liquid Gasket or equivalent.
d. Tighten mounting bolts in numerical order as shown in the fig-
ure.
e. Install intake valve timing control solenoid valve to intake valve timing control cover if removed.
f. Connect ground cables, and install harness clip.
10. Check and adjust valve clearance. Refer to EM-50, "
Valve Clearance" .
11. Install in the reverse order of removal after this step.
NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in the guide may
generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.
INSPECTION AFTER INSTALLATION
Inspection of Camshaft Sprocket (INT) Oil Groove
CAUTION:

Perform this inspection only when DTC P0011 is detected in self-diagnostic results of CONSULT-II
and it is directed according to inspection procedure of EC section. Refer to EC-82, "
SELF-DIAG
RESULTS MODE" .

Check when the engine is cold so as to prevent burns from any splashing engine oil.
1. Check the engine oil level. Refer to LU-7, "
ENGINE OIL" .
2. Perform the following procedure so as to prevent the engine from being unintentionally started while
checking.
a. Release fuel pressure. Refer to EC-49, "
FUEL PRESSURE RELEASE" .
b. Disconnect ignition coil and injector harness connectors.
3. Remove intake valve timing control solenoid valve. Refer to EM-41, "
CAMSHAFT" .
SBIA0260E
KBIA0085E

EM-50
[QR]
CAMSHAFT

4. Crank the engine, and then make sure that engine oil comes out
from intake valve timing control cover oil hole. End crank after
checking.
WARNING:
Be careful not to touch rotating parts (drive belt, idler pul-
ley, and crankshaft pulley, etc.).
CAUTION:
Engine oil may squirt from intake valve timing control sole-
noid valve installation hole during cranking. Use a shop
cloth to prevent the engine components and the vehicle. Do
not allow engine oil to get on rubber components such as
drive belt or engine mount insulators. Immediately wipe off
any splashed engine oil.

Clean oil groove between oil strainer and intake valve timing control solenoid valve if engine oil does not
come out from intake valve timing control cover oil hole. Refer to LU-5, "
LUBRICATION SYSTEM" .
5. Remove components between intake valve timing control solenoid valve and camshaft sprocket (INT),
and then check each oil groove for clogging.

Clean oil groove if necessary. Refer to LU-5, "LUBRICATION SYSTEM" .
6. After inspection, install removed parts.
Valve ClearanceBBS00596
INSPECTION
Perform inspection as follows after removal, installation or replacement of camshaft or valve-related parts, or if
there is unusual engine conditions regarding valve clearance.
1. Remove rocker cover. Refer to EM-39, "
ROCKER COVER" .
2. Open splash guard on RH undercover.
3. Measure the valve clearance with the following procedure:
a. Set No. 1 cylinder at TDC of its compression stroke.

Rotate crankshaft pulley clockwise and align TDC mark to
timing indicator on front cover.

At the same time, make sure that both intake and exhaust
cam noses of No. 1 cylinder face outside as shown in the fig-
ure.

If they do not face outside, rotate crankshaft pulley once more
(360 degrees) and align as shown in the figure.
PBIC2723E
KBIA0190E
KBIA0400J

EM-52
[QR]
CAMSHAFT

1. Remove camshaft. Refer to EM-41, "REMOVAL" .
2. Remove valve lifters at the locations that are out of the standard.
3. Measure the center thickness of the removed valve lifters with a
micrometer.
4. Use the equation below to calculate valve lifter thickness for replacement.

Thickness of new valve lifter can be identified by stamp mark
on the reverse side (inside the cylinder).
Stamp mark “696” indicates 6.96 mm (0.2740 in) in thickness.
NOTE:
Available thickness of valve lifter: 26 sizes range 6.96 to 7.46 mm (0.2740 to 0.2937 in) in steps of 0.02
mm (0.0008 in) (when manufactured at factory). Refer to EM-110, "
Available Valve Lifter" .
5. Install the selected valve lifter.
6. Install camshaft. Refer to EM-47, "
INSTALLATION" .
7. Manually rotate crankshaft pulley a few rotations.
8. Make sure that valve clearances for cold engine are within specifications by referring to the specified val-
ues. Refer to EM-50, "
INSPECTION" .
9. Install all removed parts in the reverse order of removal. Refer to EM-47, "
INSTALLATION" .
10. Warm up the engine, and check for unusual noise and vibration.
KBIA0057E
Valve lifter thickness calculation: t = t1 + (C1 – C2 )
t = Valve lifter thickness to be replaced
t
1 = Removed valve lifter thickness
C
1= Measured valve clearance
C
2= Standard valve clearance:
Intake : 0.28 mm (0.011 in)
Exhaust : 0.30 mm (0.012 in)
KBIA0119E