ECU NISSAN TEANA 2003 Service Manual

ENGINE ASSEMBLY
EM-225
[VQ]
C
D
E
F
G
H
I
J
K
L
MA
EM

Vehicle Underbody
1. Remove front drive shafts (right and left sides). Refer to FAX-8, "FRONT DRIVE SHAFT" .
2. Remove front exhaust tube. Refer to EX-2, "
EXHAUST SYSTEM" .
3. Disconnect steering lower joint at power steering gear assembly side, and release steering lower shaft.
Refer to PS-17, "
POWER STEERING GEAR AND LINKAGE" .
4. Disconnect front stabilizer connecting rod. Refer to FSU-16, "
STABILIZER BAR" .
5. Disconnect power steering piping at a point between vehicle and engine. Refer to PS-39, "
HYDRAULIC
LINE" .

Install plug to avoid leakage of power steering fluid.
6. 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.
Removal Work
1. Install engine slingers into front of cylinder head (right bank) and
rear of cylinder head (left bank).
2. Lift with hoist and secure engine in position.
3. Use manual lift table caddy (commercial service tool) or equiva-
lently rigid tool such as transmission jack. Securely support bot-
tom of front suspension member, and simultaneously adjust
hoist tension.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
4. Separate engine mounting insulator (RH) and engine mounting bracket (RH).
5. Remove engine mounting (LH) through-bolt. (VQ23DE)
PBIC2483E
PBIC2484E

EX-4
EXHAUST SYSTEM


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 leakage.

Temporarily tighten mounting nuts and bolts on the exhaust manifold side, and mounting bolts
and nuts on the vehicle side. Check each part for unusual interference, and then tighten them to
the specified torque.

When installing each mounting rubber, avoid twisting or unusual extension in up/down and right/
left directions.
Seal Bearing (QR20DE)
1. Securely insert seal bearing into exhaust manifold and three
way catalyst assembly side in the direction as shown in the fig-
ure.
CAUTION:
Be careful not to damage seal bearing surface when install-
ing.
2. With spring large diameter side facing to exhaust front tube
flange, tighten mounting nut.
3. Make sure that stud bolt does not interfere with flange of
exhaust front tube.
INSPECTION AFTER INSTALLATION

Make sure that clearance between tail tube and rear bumper is even.

With engine running, check exhaust tube joints for gas leakage and unusual noises.

Make sure that mounting brackets and mounting rubbers are installed properly and free from undue
stress. Improper installation could result in excessive noise and vibration.
PBIC2432E

FAX-10
FRONT DRIVE SHAFT

20. Install boot securely into grooves (indicated by *marks) shown in
the figure.
CAUTION:
If there is grease on boot mounting surfaces (indicated by *
marks) of shaft and housing, boot may come off. Remove
all grease from surfaces.
21. Make sure boot installation length “L” is the length indicated
below. Insert flat-bladed screwdriver or similar tool into smaller
side of boot. bleed air from boot to prevent boot deformation.
CAUTION:

Boot may break if boot installation length is less then standard value.

Take care not to touch the tip of screwdriver to inside of boot.
22. Secure the large and small ends of boot with new boot bands
using boot band crimping tool [SST: KV40107300] as shown in
the figure.
NOTE:

Do not reuse boot bands.

Secure boot band so that dimension “M” meets the specifica-
tion as shown.
23. Secure joint sub-assembly and shaft, and then make sure that
they are in the correct position when rotating boot. Install them
with new boot band when boot installation positions become
incorrect.
24. Confirm that circular clip on transaxle side is fully engaged.
25. Insert drive shaft to wheel hub and bearing assembly, and then
temporarily tighten hub lock nut.
26. Install nuts and bolts of steering knuckle and strut. Refer to FSU-7, "
Components" , “FRONT SUSPEN-
SION ASSEMBLY” for tightening torque.
27. Install disc rotor. Refer to FAX-5, "
Removal and Installation" .
28. Install torque member fixing bolts to steering knuckle. Refer to BR-26, "
FRONT DISC BRAKE" .
29. Install wheel sensor to steering knuckle. Refer to BRC-33, "
WHEEL SENSORS" .
30. Tighten lock nut to the specified torque. Refer to FA X - 11 , "
COMPONENT"
31. Install cotter pin.
NOTE:
Do not reuse cotter pin.
32. Install tires to vehicle.Engine model Boot installation length L
QR20DE
141.7 – 143.7 mm (5.58 – 5.66 in)
VQ23DE
VQ35DE 155.3 – 161.3 mm (6.11 – 6.35 in)
SDIA1760E
RAC1133D
Dimension “M” : 2.0 – 3.0 mm (0.079 – 0.118 in)
DSF0047D

FAX-12
FRONT DRIVE SHAFT

9. Remove drive shaft from transaxle.

Remove drive shaft from transaxle using drive shaft attach-
ment [SST] and a drive shaft puller (suitable tool) while insert-
ing tip of drive shaft attachment [SST] between housing and
transaxle as shown in the figure.

Make sure that circular clip is attached on the edge.
CAUTION:
Do not place drive shaft joint at an extreme angle when
removing drive shaft. Also be careful not to overextend
slide joint.
INSPECTION AFTER REMOVAL

Move joint up/down, left/right, and in axial directions. Check for motion that is not smooth and for signifi-
cant looseness.

Check boot for cracks, damage, and leakage of grease.

Disassemble drive shaft and exchange malfunctioning part if
there is a non-standard condition.
INSTALLATION
CAUTION:
Always replace transaxle side oil seal with new one when installing drive shaft.

Installation is the reverse order of the removal. For tightening torque refer to FAX-11, "COMPONENT" .
NOTE:
Do not reuse non-reusable parts.

Place the protector [SST] onto transaxle to prevent damage to
the oil seal while inserting drive shaft. Slide drive shaft sliding
joint and tap with hammer to install securely.
CAUTION:
Make sure that circular clip is completely engaged.
SDIA1934E
SDIA1190J
SDIA1763E

FAX-14
FRONT DRIVE SHAFT

9. Remove fixing bolts, and then separate drive shaft and support
bearing bracket.
10. Remove drive shaft from transaxle using a flat-bladed screw-
driver as shown in the figure.
CAUTION:

Do not place drive shaft joint at an extreme angle when
removing drive shaft. Also be careful not to overextend
slide joint.

Do not allow drive shaft to hang down without support for
housing (or joint sub-assembly), shaft and the other
parts.
INSPECTION AFTER REMOVAL

Move joint up/down, left/right, and in axial direction. Check for motion that is not smooth and for significant
looseness.

Check boot for cracks, damage, and leakage of grease.

Disassemble drive shaft and exchange malfunctioning part if
there is a non-standard condition.
INSTALLATION
CAUTION:
Always replace transaxle side oil seal with new one when installing drive shaft.

Install in the reverse order of the removal. For tightening torque, refer to FAX-13, "COMPONENT" .
NOTE:
Do not reuse non-reusable parts.

Place protector [SST] onto transaxle to prevent damage to the
oil seal while inserting drive shaft or side shaft. Slide drive shaft
sliding joint and tap with hammer to install securely.
SFA989
SDIA1190J
SDIA2082E

FRONT DRIVE SHAFT
FAX-17
C
E
F
G
H
I
J
K
L
MA
B
FA X

Dynamic Damper
Check for cracks, and other damage. Replace if there are.
Dust shield
Check for cracks, deformation, and other damage. Replace if there are.
ASSEMBLY
Transaxle Side
1. Wrap serration on shaft with tape to protect boot from damage.
Install new boot and boot bands to shaft.
NOTE:
Do not reuse boot bands and boot.
2. Remove the tape wrapped around the serration on shaft.
3. Install ball cage, steel ball and inner race assembly to shaft, and
then secure them with snap ring.
NOTE:
Do not reuse snap ring.
4. Apply the specified amount of grease (NISSAN genuine grease
or equivalent) to housing inside, and then install housing to
shaft.
5. Install stopper ring to housing.
NOTE:

Do not reuse stopper ring.

Make sure that housing and stopper ring are fully engaged.
6. Install boot securely into grooves (indicated by * marks) shown
in the figure.
CAUTION:
If grease adheres to boot mounting surface (with * mark) on
shaft and housing, boot may come off. Remove all grease
from surface.
7. Make sure boot installation length ”L“ is the length indicated
below. Insert flat-bladed screwdriver or similar tool into smaller
side of boot. bleed air from boot to prevent boot deformation.
CAUTION:

Boot may break if boot installation length is less then standard value.

Take care not to touch the tip of screwdriver to inside of boot.
SFA800
Grease amount : 124 - 134 g (4.37 - 4.73 oz)
Boot installation
length “L”: 194.5 - 196.5 mm (7.66 - 7.74 in)
SDIA1125E
SDIA1760E

FAX-18
FRONT DRIVE SHAFT

8. Secure the large and small ends of boot with new boot bands as
shown in the figure.
NOTE:
Do not reuse boot bands.
9. Secure housing and shaft, and then make sure that they are in
the correct position when rotating boot. Install them with new
boot band when boot installation positions become incorrect.
10. Install circular clip and dust shield to housing.
NOTE:
Do not reuse circular clip and dust shield.
Wheel Side
Assemble in step 14 to 32 of FA X - 8 , "DRIVE SHAFT BOOT REPLACEMENT" , “On-Vehicle Inspection and
Service”.
Dynamic Damper
Secure dynamic damper with bands in the following specified posi-
tion when removing.
NOTE:
Do not reuse bands.
SFA395
Dimension A : 205 - 215 mm (8.07 - 8.46 in)
Dimension B : 70 mm (2.76 in)
FAC0156D

FAX-20
FRONT DRIVE SHAFT

Dynamic Damper
Remove band. Then, remove dynamic damper from shaft.
INSPECTION AFTER DISASSEMBLY
Shaft
Check shaft for runout, cracks, or other damage. Replace if there are.
Joint Sub-Assembly (Wheel Side)

Check joint sub-assembly for rough rotation and excessive axial looseness.

Check the inside of joint sub-assembly for entry of foreign material.

Check joint sub-assembly for compression scars, cracks, and fractures inside of joint sub-assembly.
Replace joint sub-assembly if there are any non-standard conditions of components.
Dynamic Damper
Check for cracks, and other damage. Replace if there are.
Dust shield
Check for cracks, deformation, and other damage. Replace if there are.
ASSEMBLY
Transaxle Side
1. Wrap shaft serration with tape to protect boot from damage.
Install new boot and boot bands to shaft.
2. Remove the tape wrapped around the serration on shaft.
3. Apply the specified amount of grease (NISSAN genuine grease
or equivalent) to housing inside, and then install housing to
shaft.
4. Install boot securely into grooves (indicated by *marks) shown in
the figure.
CAUTION:
If there is grease on boot mounting surfaces (indicated by *
marks) of shaft and housing, boot may come off. Remove
all grease from surfaces.
5. Make sure boot installation length “L” is the length indicated
below.Insert a flat-bladed screwdriver or similar tool into smaller
side of boot. Bleed air from boot to prevent boot deformation.
CAUTION:

Boot may break if boot installation length is less than standard value.

Take care not to touch the tip of screwdriver to inside surface of boot.
6. Install new larger and smaller boot bands securely.
NOTE:
Discard old boot bands; replace with new ones.Grease amount
QR20DE models : 132 – 142 g (4.66 – 5.00 oz)
VQ35DE models : 134 – 144 g (4.73 – 5.08 oz)
PDIA1157E
Boot installation length “L”
QR20DE models : 180.7 – 182.7 mm (7.11 – 7.19 in)
VQ35DE models : 190.7 mm (7.51 in)SDIA1760E

FRONT DRIVE SHAFT
FAX-21
C
E
F
G
H
I
J
K
L
MA
B
FA X

7. Put boot band in the groove on drive shaft boot. Then fit pawls
into holes to temporary installation.
8. Pinch projection on the band with suitable pliers to tighten band.
9. Insert tip of band below end of the pawl.
10. After installing housing and shaft, rotate boot to check whether
or not the actual position is correct. If boot position is not correct,
secure boot with new boot bands again.
11. Install circular clip and dust shield to housing.
NOTE:
Do not reuse circular clip and dust shield.
Wheel Side
Assemble in steps 14 to 32 of FAX-8, "DRIVE SHAFT BOOT REPLACEMENT" , “ON-Vehicle Inspection and
Service”.
Dynamic Damper
Secure dynamic damper with bands in the following specified posi-
tion when removing.
NOTE:
Do not reuse bands.
SDIA3053J
SDIA3054J
SDIA3055J
Dimension A : 205 – 215 mm (8.07 – 8.46 in)
Dimension B : 50 mm (1.97 in) (QR20DE models)
: 70 mm (2.76 in) (VQ35DE models)
FAC0156D

FRONT DRIVE SHAFT
FAX-23
C
E
F
G
H
I
J
K
L
MA
B
FA X

5. Remove snap ring, and then remove ball cage, steel ball and
inner race assembly from shaft.
6. Remove boot from shaft.
7. Clean old grease on housing with paper towels.
Wheel Side
1. Place shaft in a vise.
CAUTION:
When securing in a vise using aluminum or copper plates.
2. Remove boot bands, and then remove boot from joint sub-assembly.
3. Screw drive shaft puller (suitable tool) 30 mm (1.18 in) or more
over the thread on joint sub-assembly, and pull joint sub-assem-
bly out of shaft.
CAUTION:

Replace entire drive shaft assembly if joint sub-assembly
cannot be removed after five or more unsuccessful
attempts.

Align sliding hammer and drive shaft and remove them
by pulling firmly and uniformly.
4. Remove circular clip from shaft.
5. Remove boot from shaft.
6. Clean old grease on joint sub-assembly with paper towels while rotating ball cage.
Support Bearing
1. Remove dust shield B and C from housing using a brass rod and
flat-bladed screwdriver.
2. Remove snap ring from housing using a pair of snap ring pliers
(suitable tool).
SFA514A
SDIA0606E
SFA442B
SFA692