INFINITI QX56 2006 Factory Service Manual

AT-236
ON-VEHICLE SERVICE
Revision: November 20092006 QX56
8. Install bolts A, B and C in control valve with TCM.
9. Tighten bolt 1, 2 and 3 temporarily to prevent dislocation. Then
tighten them in order (1 → 2 → 3), and then tighten other bolts.
10. Tighten control valve with TCM bolts to the specified torque. Refer to AT- 2 5 0 , "
Components" .
11. Connect A/T fluid temperature sensor 2 connector.
12. Securely fasten terminal cord assembly and A/T fluid tempera- ture sensor 2 harness with terminal clips.
Bolt symbol Length mm (in) Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
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ON-VEHICLE SERVICEAT-237
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Revision: November 2009 2006 QX56
13. Connect revolution sensor connector.
14. Securely fasten revolution sensor harness with terminal clips.
15. Install oil pan to transmission case. Refer to AT- 2 2 8 , "
Installation" .
16. Pull up A/T assembly harness connector. CAUTION:
Be careful not to damage connector.
17. Install snap ring to A/T assembly harness connector.
18. Connect A/T assembly harness connector.
19. Pour ATF into transmission assembly. Refer to AT- 1 2 , "
Chang-
ing Automatic Transmission Fluid (ATF)" .
20. Connect the negative battery terminal
CAUTION:
After completing installation, check A/T fluid leakage and fluid
level. Refer to AT- 1 2 , "
Changing Automatic Transmission Fluid
(ATF)" , AT- 1 2 , "Checking Automatic Transmission Fluid (ATF)"
.
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AT-238
ON-VEHICLE SERVICE
Revision: November 20092006 QX56
A/T FLUID TEMPERATURE SENSOR 2 REMOVAL AND INSTALLATION
Removal
1. Disconnect negative battery terminal
2. Remove oil pan and oil pan gasket. Refer to AT- 2 2 8 , "
Removal" .
3. Disconnect A/T fluid temperature sensor 2 connector.
CAUTION:
Be careful not to damage connector.
4. Straighten terminal clip to free A/T fluid temperature sensor 2 harness.
5. Remove A/T fluid temperature sensor 2 with bracket from con- trol valve with TCM.
6. Remove bracket from A/T fluid temperature sensor 2.
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ON-VEHICLE SERVICEAT-239
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Installation
1. Install A/T fluid temperature sensor 2 to bracket.
2. Install A/T fluid temperature sensor 2 (with bracket) in control
valve with TCM. Tighten A/T fluid temperature sensor 2 bolt to
the specified torque. Refer to AT- 2 5 0 , "
Components" .
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve with
TCM.
3. Connect A/T fluid temperature sensor 2 connector.
4. Securely fasten A/T temperature sensor 2 harness with terminal clip.
5. Install oil pan to transmission case. Refer to AT- 2 2 8 , "
Installation" .
6. Connect the negative battery terminal
CAUTION:
After completing installation, check for A/T fluid leakage and fluid level. Refer to AT- 1 2 , "
Changing
Automatic Transmission Fluid (ATF)" , AT- 1 2 , "Checking Automatic Transmission Fluid (ATF)" .
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AT-240
ON-VEHICLE SERVICE
Revision: November 20092006 QX56
Rear Oil SealECS00EQ1
REMOVAL AND INSTALLATION
Removal
1. Remove rear propeller shaft. Refer to PR-9, "REMOVAL" .
2. Remove transfer from transmission (4WD models). Refer to TF-
145, "REMOVAL" .
3. Remove rear oil seal using suitable tool. CAUTION:
Be careful not to scratch rear extension assembly (2WD
models) or adapter case assembly (4WD models).
Installation
1. Install new rear oil seal until it is flush with component face intothe 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 TF-145,
"INSTALLATION" .
3. Install rear propeller shaft. Refer to PR-9, "
INSTALLATION" .
CAUTION:
After completing installation, check for A/T fluid leakage and
fluid level. Refer to AT- 1 2 , "
Changing Automatic Transmission
Fluid (ATF)" and AT- 1 2 , "Checking Automatic Transmission
Fluid (ATF)" .
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Tool number : ST33400001 (J-26082)
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AIR BREATHER HOSEAT-241
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AIR BREATHER HOSEPFP:31098
Removal and InstallationECS00EO5
2WD
CAUTION:

When installing an air breather hose, do not crush or block by folding or bending the hose.

When inserting a hose to the transmission tube, be sure to insert it fully until its end reaches the
tube bend portion.
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AT-242
AIR BREATHER HOSE
Revision: November 20092006 QX56
4WD
CAUTION:

When installing an air breather hose, do not crush or block by folding or bending the hose.

When inserting a hose to the transmission tube, be sure to insert it fully until its end reaches the
tube bend portion.
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TRANSMISSION ASSEMBLYAT-243
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TRANSMISSION ASSEMBLYPFP:31020
Removal and Installation (2WD)ECS00EQ2
COMPONENTS
REMOVAL
CAUTION:
When removing the A/T assembly from engine, first remove the crankshaft position sensor (POS) from
the A/T assembly.
Be careful not to damage sensor edge.
1. Disconnect the negative battery terminal.
2. Remove engine cover.
3. Remove A/T fluid indicator gauge.
4. Remove undercovers using power tool.
5. Remove exhaust front tube and center muffler using power tool. Refer to EX-3, "
Removal and Installation"
.
6. Remove rear propeller shaft. Refer to PR-8, "
Removal and Installation" .
7. Remove A/T control cable. Refer to AT- 2 2 7 , "
REMOVAL" .
1. A/T fluid indicator pipe 2. A/T fluid indicator 3. O-ring
4. Transmission assembly 5. Fluid cooler tube6. A/T cross member
7. Insulator 8. Copper washers
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AT-244
TRANSMISSION ASSEMBLY
Revision: November 20092006 QX56
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 foreign material to get on the
sensor front edge magnetic area.

Do not place in an area affected by magnetism.
9. Remove fluid cooler tube.
10. Remove dust cover from converter housing.
11. Turn crankshaft to access 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 with a transmission jack. CAUTION:
When setting the transmission jack, be careful not to allow
it to collide against the drain plug.
13. Remove cross member using power tool.
14. Remove air breather hose. Refer to AT- 2 4 1 , "
Removal and
Installation" .
15. Disconnect A/T assembly connector.
16. Remove A/T fluid indicator pipe from A/T assembly.
17. Plug any openings such as the A/T fluid indicator pipe hole.
18. Remove the A/T assembly to engine bolts using power tool.
19. Remove A/T assembly from vehicle using transmission jack. CAUTION:

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 transmission, be sure to
check dimension A to ensure it is within specifications.
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Dimension A : 24.0 mm (0.94 in) or more
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TRANSMISSION ASSEMBLYAT-245
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Revision: November 2009 2006 QX56
INSTALLATION
Installation of the remaining components is in the reverse order of the removal, while paying attention to the
following:

When installing transmission to the engine, attach the bolts as shown.
NOTE:
*: No.2 bolt also secures air breather vent.
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 com-
ponents.

Align the positions of bolts for drive plate with those of the torque
converter, and temporarily tighten the bolts. Then tighten the
bolts with the specified torque.
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 AT- 1 2 , "
Checking Automatic Transmission Fluid (ATF)" , AT- 2 2 7 , "Checking
of A/T Position" and AT- 2 2 7 , "Adjustment of A/T Position" .
Transmission to engine bolts : 113 N·m (12 kg-m,
83 ft-lb)
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