4WD INFINITI QX56 2009 Factory Service Manual

AIR BREATHER HOSETM-197
< ON-VEHICLE REPAIR >
CEF
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TM
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AIR BREATHER HOSE
2WD
2WD : Removal and InstallationINFOID:0000000005892370
CAUTION:
 Install air breather hose with paint mark at upper side.
 When installing the air breather hose, do not crush or block by folding or bending the hose.
 When inserting the hose to the tran smission tube, be sure to insert it fully until its end reaches the
tube bend portion.
 Make sure clip is securely installed to bracket.
4WD
4WD : Removal and InstallationINFOID:0000000005892369
REMOVAL
A. Set air breather hose with
paint mark at upper side B. Clip (set securely to bracket)
AWDIA0554GB
Revision: December 20092009 QX56

TM-212
< ON-VEHICLE REPAIR >
REAR OIL SEAL
REAR OIL SEAL
Rear Oil SealINFOID:0000000004187482
REMOVAL AND INSTALLATION
Removal
1. Remove rear propeller shaft. Refer to DLN-196, "Removal and Installation".
2. Remove transfer from transmission (4WD models). Refer to DLN-141, "Removal and Installation"
.
3. Remove rear oil seal using suitable tool. CAUTION:
Do not scratch rear extension assembly (2WD models) or
adapter case assembly (4WD models).
Installation
1. Install new rear oil seal until it is flush into the rear extension
case (2WD models) using Tool or adapter case (4WD models)
using suitable tool.
CAUTION:
 Apply ATF to rear oil seal.
 Do not reuse rear oil seal.
2. Install transfer to transmission (4WD models). Refer to DLN-
141, "Removal and Installation".
3. Install rear propeller shaft. Refer to DLN-196, "Removal and
Installation".
4. Check the A/T fluid level and for fluid leakage. Refer to TM-179,
"Checking the A/T Fluid (ATF)".
SCIA5254E
Tool number : ST33400001 (J-26082)
WCIA0475E
Revision: December 20092009 QX56

TM-216
< REMOVAL AND INSTALLATION >
TRANSMISSION ASSEMBLY
 When installing transmission to the engine, attach the bolts in theorder as shown.
CAUTION:
 When replacing an engine or transmission you must make
sure the dowels are installe d correctly during re-assembly.
 Improper alignment caused by missing dowels may cause
vibration, oil leaks or breakage of drivetrain components.
NOTE:
*: No.2 bolt also secures air breather vent.
 Align the positions of bolts for drive plate with those of the torque converter, and temporarily tight en the bolts. Then tighten the bolts
with the specified torque. Refer to TM-214, "Removal and Installa-
tion (2WD)".
CAUTION:
 When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
 After converter is installed to drive plate, rotate crankshaft several turns and check to be su re that transmission rotates
freely without binding.
 Install crankshaft position sensor (POS).
 After completing installation check fluid leakage, fluid level and the positions of A/T. Refer to TM-179, "Checking the A/T Fluid (ATF)"
, TM-195, "Checking of A/T Position" and
TM-195, "Adjustment of A/T Position"
.
Removal and Installation (4WD)INFOID:0000000005892372
COMPONENTS
Transmission to engine bolts : 113 N·m (12 kg-m,
83 ft-lb)
LCIA0371E
LCIA0335E
Revision: December 20092009 QX56

TM-218
< REMOVAL AND INSTALLATION >
TRANSMISSION ASSEMBLY
8. 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 or fo reign material to get on the
sensor front edge magnetic area.
 Do not place in an area affected by magnetism.
9. Remove A/T fluid cooler tubes from A/T assembly.
10. Remove dust cover from converter housing.
11. Turn crankshaft, and remove the four bolts for drive plate and torque converter.
CAUTION:
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
12. Support A/T assembly using transmission jack and Tool. CAUTION:
When setting the transmission jack, be careful not to allow it to collide against the drain plug.
NOTE:
The actual special service tool may differ from tool shown.
13. Remove cross members using power tool.
14. Tilt the transmission slightly to keep the cl earance between body and transmission, then disconnect air
breather hose from A/T fluid indicator pipe. Refer to TM-197, "4WD : Removal and Installation"
.
15. Disconnect the following.  Neutral 4 low switch
 Wait detection switch
 Transfer motor connector
 A/T assembly connector
 Transfer control device connector
 ATP switch connector
 Transfer terminal cord assembly connector
16. Remove air breather hose assembly. Refer to TM-197, "4WD : Removal and Installation"
.
17. Remove A/T fluid indicator pipe.
18. Plug any openings such as the fluid charging pipe hole.
19. Remove A/T assembly to engine bolts using power tool.
20. Remove A/T assembly with transfer from vehicle. CAUTION:
 Secure torque converter to prevent it from dropping.
 Secure A/T assembly to transmission jack.
21. Remove transfer from A/T assembly. Refer to DLN-141,
"Removal and Installation".
LCIA0334E
LCIA0335E
Tool number : — (J-47002)
SCIA2203E
Revision: December 20092009 QX56

TRANSMISSION ASSEMBLYTM-219
< REMOVAL AND INSTALLATION >
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INSPECTION
Installation and Inspection of Torque Converter
 After inserting a torque converter to a transmission, be sure to check distance A to ensure it is within specifications.
INSTALLATION
Installation of the remaining components is in the revers e order of removal, while paying attention to the fol-
lowing:
 When installing transmission to the engine, attach the bolts as shown.
CAUTION:
 When replacing an engine or transmission you must make sure the dowels are installed correctly during re-assembly.
 Improper alignment caused by missing dowels may cause vibration, oil leaks or breakage of drivetrain components.
NOTE:
*: No.2 bolt also secures air breather vent.
 Align the positions of bolts for dr ive plate with those of the torque
converter, and temporarily tighten the bolts. Then tighten the bolts
with the specified torque. Refer to TM-216, "Removal and Installa-
tion (4WD)".
CAUTION:
 When turning crankshaft, turn it clockwise as viewed from the
front of the engine.
 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).
 After completing installation, check fluid leakage, fluid level, and the positions of A/T. Refer to TM-179, "Checking the A/T Fluid (ATF)"
, TM-195, "Checking of A/T Position"
and TM-195, "Adjustment of A/T Position".
Distance A : 24.0 mm (0.94 in) or more
SAT017B
Transmission to engine bolts : 113 N·m (12 kg-m,
83 ft-lb)
LCIA0371E
LCIA0335E
Revision: December 20092009 QX56

TM-224
< DISASSEMBLY AND ASSEMBLY >
OVERHAUL
4WD
16. Bearing race 17. Needle bearing 18. Manual plate
19. Parking rod 20. Manual shaft oil seal 21. Manual shaft
22. O-ring 23. Band servo anchor end pin 24. Detent spring
25. Spacer 26. Seal ring 27. Snap ring
28. Return spring 29. O-ring 30. Servo assembly
31. Snap ring 32. Sub-harness 33. Control valve with TCM
34. Bracket 35. A/T fluid temperature sensor 2 36. A/T assemblt harness connector
37. O-ring 38. Retaining pin 39. Transmission case
*: Apply Genuine Anaerobic Liquid Gasket or equivalent.
Revision: December 20092009 QX56

TM-228
< DISASSEMBLY AND ASSEMBLY >
OVERHAUL
4WD models
SCIA5189E
Revision: December 20092009 QX56

TM-230
< DISASSEMBLY AND ASSEMBLY >
OVERHAUL
VK56DE models 4WD
10. Outer diameter 80 mm (3.15 in) 11. Outer diameter 77 mm (3.03 in) 12. Outer diameter 77 mm (3.03 in)
13. Outer diameter 47 mm (1.85 in) 14. Outer diameter 84 mm (3.31 in) 15. Outer diameter 84 mm (3.31 in)
16. Outer diameter 92 mm (3.62 in) 17. Outer diameter 60 mm (2.36 in) 18. Outer diameter 63 mm (2.48 in)
19. Outer diameter 92 mm (3.62 in) 20. Outer diameter 65 mm (2.56 in) 21. Bearing race
22. Outer diameter 60 mm (2.36 in)
WCIA0561E
Revision: December 20092009 QX56

TM-240
< DISASSEMBLY AND ASSEMBLY >
DISASSEMBLY
40. Disconnect TCM connectors.CAUTION:
Do not damage connectors.
41. Remove A/T assembly harness connector from control valve with TCM using suitable tool.
42. Disconnect TCM connector and transmission range switch con- nector.
CAUTION:
Do not damage connectors.
43. Remove rear extension assembly (2WD models) or adapter case assembly (4WD models) according to the following procedures.
a. 2WD models
i. Remove bolts (1 brackets) for rear extension assembly and transmission case.
 Self-sealing bolts (2)
SCIA5447E
SCIA5448E
SCIA5449E
WCIA0562E
Revision: December 20092009 QX56

DISASSEMBLYTM-241
< DISASSEMBLY AND ASSEMBLY >
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ii. Tap rear extension assembly with soft hammer.
iii. Remove rear extension assembly (with needle bearing) from transmission case.
b. 4WD models
i. Remove adapter case to transmission case bolts and terminal bracket (1).
 Self-sealing bolt (2)
ii. Tap adapter case assembly using suitable tool.
SCIA5028E
SCIA5029E
WCIA0563E
SCIA5201E
Revision: December 20092009 QX56