Page 344 of 4366
AT-260
ON-VEHICLE SERVICE
Revision: 2006 July 2007 FX35/FX45
7. Remove clips (1), oil pan (2) and oil pan gasket.
: Vehicle front
: Bolt (22)
Drain plug (3)
8. Check foreign materials in oil pan to help determine causes of malfunction. If the ATF is very dark, smells burned, or contains
foreign particles, the frictional material (clutches, band) may
need replacement. A tacky film that will not wipe clean indicates
varnish build up. Varnish can cause valves, servo, and clutches
to stick and can inhibit pump pressure.
If frictional material is detected, perform A/T fluid cooler
cleaning. Refer to AT- 1 5 , "
A/T Fluid Cooler Cleaning" .
9. Support A/T assembly with a transmission jack. CAUTION:
When setting transmission jack, place wooden blocks to
prevent from damaging control valve with TCM and trans-
mission case.
10. Remove rear engine mounting member with power tool. Refer to AT- 2 6 6 , "
Removal and Installation (2WD
Models)" .
11. Remove tightening bolts for rear extension assembly and trans- mission case.
12. Tap rear extension assembly with soft hammer.
SCIA8117E
SCIA5199E
SCIA6941E
SCIA3432E
Page 348 of 4366
AT-264
AIR BREATHER HOSE
Revision: 2006 July 2007 FX35/FX45
AIR BREATHER HOSEPFP:31098
Removal and InstallationNCS001IJ
VQ35DE ENGINE MODEL
Refer to the figure below for air breather hose removal and installation procedure.
CAUTION:
When installing an air breather hose, be careful not to be crushed or blocked by folding or bend-
ing the hose.
When inserting a hose to the transmission tube, be sure to insert it fully until its end reaches the
tube bend R portion.
SCIA2151E
Page 349 of 4366
AIR BREATHER HOSE AT-265
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 July 2007 FX35/FX45
VK45DE ENGINE MODEL
Refer to the figure below for air breather hose removal and installation procedure.
CAUTION:
When installing an air breather hose, be careful not to be crushed or blocked by folding or bend-
ing the hose.
When inserting a hose to the transmission tube, be sure to insert it fully until its end reaches the
tube bend R portion.
SCIA2152E
Page 351 of 4366
TRANSMISSION ASSEMBLY AT-267
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 July 2007 FX35/FX45
10. Remove crankshaft position sensor (POS) from A/T assembly.
CAUTION:
Do not subject it to impact by dropping or hitting it.
Do not disassemble.
Do not allow metal filings, etc. to get on the sensor's front
edge magnetic area.
Do not place in an area affected by magnetism.
11. Remove starter motor. Refer to SC-19, "
Removal and Installa-
tion [VQ35DE Engine Models (2WD)]" .
12. Remove fluid cooler tube.
13. Remove rear plate cover. Refer to EM-30, "
Removal and Instal-
lation (2WD Models)" .
14. Remove rear cover plate. Refer to EM-30, "
Removal and Installation (2WD Models)" .
15. Turn crankshaft, and remove the four tightening bolts for drive plate and torque converter.
CAUTION:
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
16. Support A/T assembly with a transmission jack. CAUTION:
When setting the transmission jack, be careful not to allow
it to collide against the drain plug.
17. Remove rear engine mounting member with power tool.
18. Remove engine mounting insulator (rear).
19. Remove air breather hose. Refer to AT- 2 6 4 , "
Removal and Installation" .
20. Disconnect A/T assembly harness connector.
21. Remove A/T fluid charging pipe from A/T assembly.
22. Remove O-ring from A/T fluid charging pipe.
23. Plug up openings such as the A/T fluid charging pipe hole, etc.
24. Remove bolts fixing A/T assembly to engine assembly with power tool.
25. Remove A/T assembly from vehicle with a transmission jack.
Secure torque converter to prevent it from dropping.
Secure A/T assembly to a transmission jack.
INSPECTION
Installation and Inspection of Torque Converter
After inserting a torque converter to a A/T, be sure to check dis-
tance “A” to ensure it is within the reference value limit.
SCIA2155E
SCIA2288E
SCIA0499E
Distance “A” : 25.0 mm (0.98 in) or more
SAT017B
Page 352 of 4366
AT-268
TRANSMISSION ASSEMBLY
Revision: 2006 July 2007 FX35/FX45
INSTALLATION
Install the removed parts in the reverse order of the removal, while paying attention to the following work.
When installing A/T assembly to the engine assembly, attach the
fixing bolts in accordance with the following standard.
Align the positions of tightening bolts for drive plate with those of
the torque converter, and temporarily tighten the bolts. Then,
tighten the bolts with the specified torque. Refer to AT- 2 6 6 ,
"COMPONENTS" .
CAUTION:
Do not reuse O-ring and copper washers.
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
When tightening the tightening bolts for the torque con-
verter after fixing the crankshaft pulley bolts, be sure to
confirm the tightening torque of the crankshaft pulley
mounting bolts. Refer to EM-72, "
INSTALLATION" .
After converter is installed to drive plate, rotate crankshaft several turns and check to be sure that
transmission rotates freely without binding.
Install crankshaft position sensor (POS). Refer to EM-30, "Removal and Installation (2WD Models)" .
After completing installation, check A/T fluid leakage, A/T fluid level, and the A/T positions of A/T. Refer to
AT- 1 3 , "
Checking A/T Fluid" , AT- 2 3 1 , "Checking of A/T Position" .
Bolt No. 1 2 3 4
Number of bolts 1 5 2 2
Bolt length
“ ”mm (in) 55 (2.17) 65 (2.56) 65 (2.56) 35 (1.38)
Tightening torque
N·m (kg-m, ft-lb) 75
(7.7, 55) 55
(5.6, 41) 47
(4.8, 35)
SCIA3949E
SCIA2288E
Page 355 of 4366
TRANSMISSION ASSEMBLY AT-271
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 July 2007 FX35/FX45
11. Remove crankshaft position sensor (POS) from A/T assembly.
CAUTION:
Do not subject it to impact by dropping or hitting it.
Do not disassemble.
Do not allow metal filings, etc., to get on the sensor's
front edge magnetic area.
Do not place in an area affected by magnetism.
12. Remove starter motor. Refer to SC-20, "
Removal and Installa-
tion [VQ35DE Engine Models (AWD)]" (for VQ35DE) or SC-18,
"REMOVAL" (for VK45DE).
13. Disconnect fluid cooler tube from A/T assembly.
14. Remove rear plate cover. Refer to EM-36, "
Removal and Instal-
lation (AWD Models)" (for VQ35DE) or EM-187, "Removal and
Installation" (for VK45DE).
15. Turn crankshaft, and remove the four tightening bolts for drive plate and torque converter.
CAUTION:
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
16. Remove dynamic damper (for VQ35DE). Refer to EM-118,
"Removal and Installation (AWD Models)" .
17. Support A/T assembly with a transmission jack. CAUTION:
When setting the transmission jack, be careful not to allow
it to collide against the drain plug.
18. Remove rear engine mounting member with power tool.
19. Remove engine mounting insulator (rear).
20. Tilt the A/T assembly slightly to keep the clearance between body and A/T assembly, and then disconnect air breather hose
from A/T fluid charging pipe. Refer to AT- 2 6 4 , "
Removal and
Installation" .
21. Disconnect A/T assembly harness connector and transfer assembly harness connector.
22. Remove A/T fluid charging pipe.
23. Remove O-ring from A/T fluid charging pipe.
24. Plug up openings such as the A/T fluid charging pipe hole, etc.
25. Remove bolts fixing transmission assembly to engine with power tool.
SCIA2011E
SCIA5326E
SCIA2010E
SCIA2202E
Page 357 of 4366
TRANSMISSION ASSEMBLY AT-273
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 July 2007 FX35/FX45
Align the positions of tightening bolts for drive plate with those of
the torque converter, and temporarily tighten the bolts. Then,
tighten the bolts with the specified torque. Refer to AT- 2 6 9 ,
"COMPONENTS (FOR VQ35DE)" or AT- 2 7 0 , "COMPONENTS
(FOR VK45DE)" .
CAUTION:
Do not reuse O-ring and copper washers.
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
When tightening the tightening bolts for the torque con-
verter after fixing the crankshaft pulley bolts, be sure to
confirm the tightening torque of the crankshaft pulley
mounting bolts. Refer to EM-72, "
INSTALLATION" (for VQ35DE) or EM-208, "INSTALLATION" (for
VK45DE)
After converter is installed to drive plate, rotate crankshaft several turns and check to be sure that
transmission rotates freely without binding.
Install crankshaft position sensor (POS). Refer to EM-35, "Components (AWD Models)" (for VQ35DE) or
EM-187, "
Components" (for VK45DE).
After completing installation, check A/T fluid leakage, A/T fluid level, and the positions of A/T. Refer to AT-
13, "Checking A/T Fluid" , AT- 2 3 1 , "Checking of A/T Position" .
SCIA2010E
Page 378 of 4366
AT-294
DISASSEMBLY
Revision: 2006 July 2007 FX35/FX45
DISASSEMBLYPFP:31020
DisassemblyNCS001IP
CAUTION:
Do not disassemble parts behind drum support. Refer to AT- 1 8 , "
Cross-sectional View (2WD Models)"
, AT- 1 9 , "Cross-sectional View (VQ35DE Models for AWD)" or AT- 2 0 , "Cross-sectional View (VK45DE
Models for AWD)" .
1. Drain ATF through drain plug.
2. Remove torque converter by holding it firmly and turing while pulling straight out.
3. Check torque converter one-way clutch using check tool as shown in the figure.
a. Insert check tool into the groove of bearing support built into one-way clutch outer race.
b. When fixing bearing support with check tool, rotate one-way clutch spline using screwdriver.
c. Make sure that inner race rotates clockwise only. If not, replace torque converter assembly.
4. Remove tightening bolts (1) for converter housing and transmis- sion case.
: Bolt (8)
Self-sealing bolts (2)
5. Remove converter housing from transmission case. CAUTION:
Be careful not to scratch converter housing.
SCIA5010E
SCIA3171E
SCIA7985E
