INFINITI QX56 2011 Factory Service Manual

REAR OIL SEALTM-193
< REMOVAL AND INSTALLATION > [7AT: RE7R01B]
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2WD : InspectionINFOID:0000000006228062
INSPECTION AFTER INSTALLATION
Check A/T fluid leakage. Refer to TM-175, "Inspection".
ADJUSTMENT AFTER INSTALLATION
Adjust A/T fluid level. Refer to TM-95, "Adjustment".
4WD
4WD : Exploded ViewINFOID:0000000006226902
4WD : Removal and InstallationINFOID:0000000006226903
REMOVAL
1. Remove transfer assembly from A/T assembly. Refer to DLN-137, "Removal and Installation".
2. Remove rear oil seal (1) with a flat-bladed screwdriver (A). CAUTION:
Never scratch adapter case assembly.
INSTALLATION
Note the following, and install in the reverse order of removal.
1. A/T 2. Rear oil seal
Refer to GI-4, "
Components" for symbols in the figure.
JSDIA1726ZZ
JPDIA0038ZZ
Revision: 2010 May2011 QX56

TM-194
< REMOVAL AND INSTALLATION >[7AT: RE7R01B]
REAR OIL SEAL
 As shown in the figure, use the drift [64 mm (2.52 in) dia. commer-
cial service tool] (A) to drive rear oil seal into adapter case assem-
bly until it is flush.
CAUTION:
 Never reuse rear oil seal.
 Apply ATF to rear oil seal.
4WD : Inspection and AdjustmentINFOID:0000000006226904
INSPECTION AFTER INSTALLATION
Check A/T fluid leakage. Refer to TM-175, "Inspection".
ADJUSTMENT AFTER INSTALLATION
Adjust A/T fluid level. Refer to TM-95, "Adjustment".
JPDIA0040ZZ
Revision: 2010 May2011 QX56

OUTPUT SPEED SENSORTM-195
< REMOVAL AND INSTALLATION > [7AT: RE7R01B]
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OUTPUT SPEED SENSOR
2WD
2WD : Exploded ViewINFOID:0000000006228119
2WD : Removal and InstallationINFOID:0000000006228120
REMOVAL
1. Disconnect the battery cabl e from the negative terminal.
2. Drain ATF through drain plug.
3. Separate propeller shaft assembly. Refer to DLN-143, "
Exploded View".
1. A/T 2. Oil pan gasket 3. Oil pan
4. Clip 5. Oil pan mounting bolt 6. Overflow plug
7. Drain plug 8. Drain plug gasket 9. Magnet
10. Output speed sensor 11. Self-sealing bolt 12. Bracket
13. Rear extension
*: Apply Genuine Anaerobic Liquid Gasket or equivalent. Refer to GI-22, "Recommended Chemical Products and Sealants".
Refer to GI-4, "
Components" for symbols not described on the above.
JSDIA1925GB
Revision: 2010 May2011 QX56

TM-196
< REMOVAL AND INSTALLATION >[7AT: RE7R01B]
OUTPUT SPEED SENSOR
4. Remove clips (1).
5. Remove oil pan (2) and oil pan gasket.
6. Support A/T assembly with a transmission jack.
CAUTION:
When setting transmission j ack, place wooden blocks to
prevent from damaging control valve & TCM and transmis-
sion case.
7. Remove rear engine mounting cross member with power tool. Refer to TM-205, "
2WD : Exploded View".
8. Remove engine mounting insulator (rear). Refer to TM-205, "
2WD : Exploded View".
9. Remove tightening bolts for rear extension assembly and trans- mission case.
10. Tap rear extension assembly with a soft hammer (A). CAUTION:
Be careful not to damage rear extension case.
11. Remove rear extension assembly (with needle bearing) from transmission case.
: Vehicle front
: Oil pan mounting bolt
1 : Bracket
A: Bolt
B : Self-sealing bolt
JSDIA1591ZZ
JSDIA1845ZZ
JPDIA0027ZZ
SCIA3431E
Revision: 2010 May2011 QX56

OUTPUT SPEED SENSORTM-197
< REMOVAL AND INSTALLATION > [7AT: RE7R01B]
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12. Disconnect output speed sensor connector (A). CAUTION:
Be careful not to damage connector
13. Disengage terminal clips ( ).
14. Remove output speed sensor (1) from transmission case.
CAUTION:
 Never subject it to impact by dropping or hitting it.
 Never disassemble.
 Never allow metal filings, etc. to get on the sensor's frontedge magnetic area.
 Never place in an area affected by magnetism.
INSTALLATION
Note the following, and install in the reverse order removal.
CAUTION:
 Insert the tip of parking rod between the parkin g pole and the parking actuator support when assem-
bling the rear ext ension assembly.
 Never reuse drain plug gasket.
 Refer to the followings when installing output speed sensor.
CAUTION:
 Never subject it to impact by dropping or hitting it.
 Never disassemble.
 Never allow metal filings, etc. to get on the sensor's front edge magnetic area.
 Never place in an area affected by magnetism.
 Refer to the followings when installing rear extension assembly.
- Apply recommended sealant (Genuine Anaerobic Liquid Gasket or equivalent. Refer to GI-22, "
Recommended Chemical Products
and Sealants".) to rear extension assembly as shown in the figure.
CAUTION:
Completely remove all moisture, oil and old sealant, etc. from
transmission case and rear extension assembly mounting
surfaces.
JPDIA1104ZZ
: Bolt
JSDIA1885ZZ
Sealant starting
point and end-
point (A) : Start and finish point shall be in
the center of two bolts.
Overlap width of
sealant starting
point and end-
point (B) : 3 – 5 mm (0.12 – 0.20 in)
Sealant width (C) : 1.0 – 2.0 mm (0.04 – 0.08 in)
Sealant height (C) : 0.4 – 1.0 mm (0.016 – 0.04 in)
JSDIA1855ZZ
Revision: 2010 May2011 QX56

TM-198
< REMOVAL AND INSTALLATION >[7AT: RE7R01B]
OUTPUT SPEED SENSOR
- Tighten rear extension assembly bolts to the specified torque.
 Refer to the followings when installing oil pan (2) (with oil pan gas-
ket) and clips (1) to transmission case.
CAUTION:
 Never reuse oil pan gasket and oil pan mounting bolts.
 Install oil pan gasket in the di rection to align hole position.
 Install it so that drain plug comes to the position as shown
in the figure.
 Be careful not to pinch harnesses.
 Completely remove all moisture, oil and ol d gasket, etc. from oil pan mounting surface.
- Tighten oil pan mounting bolts to the specified torque in numerical
order shown in the figure after temporarily tightening them. Tighten
necessary oil pan mounting bolts with specified torque.
2WD : Inspection and AdjustmentINFOID:0000000006228121
INSPECTION AFTER REMOVAL
Check foreign materials in oil pan to help determine causes of mal-
function. If the ATF is very dark, smells burned, or contains foreign
particles, the frictional material (clutches, band) may need replace-
ment. 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 det ected, perform A/T fluid cooler
cleaning. Refer to TM-97, "
Cleaning".
INSPECTION AFTER INSTALLATION
Check A/T fluid leakage Refer to TM-175, "Inspection".
1: Bracket
A: Bolt
B : Self-sealing bolt
JSDIA1845ZZ
: Vehicle front
: Oil pan mounting bolt
: Vehicle front
JSDIA1591ZZ
JSDIA1592GB
SCIA5199E
Revision: 2010 May2011 QX56

AIR BREATHER HOSETM-199
< REMOVAL AND INSTALLATION > [7AT: RE7R01B]
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AIR BREATHER HOSE
2WD
2WD : Exploded ViewINFOID:0000000006233261
2WD : Removal and InstallationINFOID:0000000006233262
REMOVAL
1. Remove A/T air breather hose.
2. Remove air breather box from A/T air breather hose.
3. Remove clips from bracket.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
 Never bend the A/T air breather ho se to prevent damage to the hose.
 Insert A/T air breather hose to air breather tu be all the way to the curve of the tube.
 Install A/T air breather hose to A/T air breather tube so that the paint mark is facing upward.
 To fix A/T air breather hose (1) to the clip (2), face the A/T air
breather hose paint mark (A) rearward and observe the instal-
lation position shown in the figure.
 To install air breather cap (3), face the arrow “ ” (B) toward the right side of the vehic le as shown in the figure.
1. Air breather cap 2. Clip 3. Bracket
4. A/T assembly 5. A/T air breather hose 6. A/T air breather tube
A. Tightening must be done following the installation procedure. Refer to TM-205, "
2WD : Removal and Installation".
JSDIA1593ZZ
JSDIA1641ZZ
Revision: 2010 May2011 QX56

TM-200
< REMOVAL AND INSTALLATION >[7AT: RE7R01B]
AIR BREATHER HOSE
 To fix A/T air breather hose (1) to the clip (2), face the A/T air
breather hose paint mark (A) upward and observe the installa-
tion position shown in the figure.
4WD
4WD : Exploded ViewINFOID:0000000006226905
4WD : Removal and InstallationINFOID:0000000006226906
REMOVAL
1. Separate propeller shaft assembly (front). Refer to DLN-129, "Removal and Installation".
2. Remove A/T air breather hose.
3. Remove air breather box from A/T air breather hose.
4. Remove transfer air breather hose. Refer to DLN-121, "
Removal and Installation".
5. Remove clips from bracket.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
 Never bend the A/T air breather hose to prevent damage to the hose.
 Insert A/T air breather hose to air breather tu be all the way to the curve of the tube.
 Install A/T air breather hose to A/T air breather tube so that the paint mark is facing upward.
JSDIA1642ZZ
1. Air breather cap 2. Clip 3. Bracket
4. A/T assembly 5. A/T air breather hose 6. A/T air breather tube
A. Tightening must be done following the installation procedure. Refer to TM-208, "
4WD : Removal and Installation".
JSDIA1593ZZ
Revision: 2010 May2011 QX56

AIR BREATHER HOSETM-201
< REMOVAL AND INSTALLATION > [7AT: RE7R01B]
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 To fix A/T air breather hose (1) to the clip (2), face the A/T air
breather hose paint mark (A) rearward and observe the instal-
lation position shown in the figure.
 To install air breather cap (3), face the arrow “ ” (B) toward
the right side of the vehic le as shown in the figure.
 To fix A/T air breather hose (1) to the clip (2), face the A/T air
breather hose paint mark (A) upward and observe the installa-
tion position shown in the figure.
JSDIA1641ZZ
JSDIA1642ZZ
Revision: 2010 May2011 QX56

TM-202
< REMOVAL AND INSTALLATION >[7AT: RE7R01B]
FLUID COOLER SYSTEM
FLUID COOLER SYSTEM
Exploded ViewINFOID:0000000006226907
Removal and InstallationINFOID:0000000006226908
REMOVAL
1. Remove front grille. Refer to
EXT-19, "Removal and Installation".
2. Remove reservoir tank. Refer to CO-13, "
Removal and Installation".
3. Remove radiator upper seal. Refer to DLK-220, "
Exploded View".
4. Remove air guide seal (RH). Refer to DLK-220, "
Exploded View".
5. Remove A/T fluid cooler hose C and D from A/T fluid cooler.
6. Remove liquid tank mounting bolt (A). Refer to HA-38,
"Exploded View".
7. Remove A/T fluid cooler mounting bolt (B).
8. Remove radiator mounting bolts and tilt radiator to the vehicle rear. Refer to CO-13, "
Exploded View".
9. Remove A/T fluid cooler bracket (C) from radiator (1), and remove A/T fluid cooler (2) from the vehicle.
CAUTION:
 Be careful not to damage A/T fluid cooler core.
 Be careful not to damage co ndenser core, condenser pipe
and liquid tank.
1. A/T assembly 2. Copper washer 3. A/T fluid cooler tube A
4. A/T fluid cooler tube D 5. Clip 6. Hose clamp
7. A/T fluid cooler hose E 8. A/T fluid cooler hose A 9. A/T fluid cooler hose B
10. A/T fluid cooler tube B 11. A/T fluid cooler tube C 12. A/T fluid cooler hose D
13. A/T fluid cooler 14. A/T fluid cooler hose C 15. A/T fluid warmer
Refer to GI-4, "
Components" for symbols in the figure.
JSDIA1595GB
JSDIA1687ZZ
Revision: 2010 May2011 QX56