2009 INFINITI QX56 Factory Service Manual

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Page 3825 of 4171

INFINITI QX56 2009 Factory Service Manual
PREPARATIONTM-177
< PREPARATION >
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PREPARATION
PREPARATION
Special Service ToolINFOID:0000000003772017
Tool number
Tool name Description
ST2505S001
Oil pressure gauge s

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INFINITI QX56 2009 Factory Service Manual
TM-178
< PREPARATION >
PREPARATION
Commercial Service Tool
INFOID:0000000003772018
Tool name Description
Power tool Loosening bolts and nuts
Drift Installing manual shaft seals
a: 22 mm (0.87 in) dia

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INFINITI QX56 2009 Factory Service Manual
A/T FLUIDTM-179
< ON-VEHICLE MAINTENANCE >
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ON-VEHICLE MAINTENANCE
A/T FLUID
Checking the A/T Fluid (ATF)INFOID:0000000004187473
CAUTION:
If using the vehicle for towing

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INFINITI QX56 2009 Factory Service Manual
TM-180
< ON-VEHICLE MAINTENANCE >
A/T FLUID
5. Allow the A/T fluid temperature to fall to approximately 65°C (149 °F). Use the CONSULT-III to monitor the
A/T fluid temperature as follows:
NOTE:
The

Page 3829 of 4171

INFINITI QX56 2009 Factory Service Manual
A/T FLUIDTM-181
< ON-VEHICLE MAINTENANCE >
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Changing the A/T Fluid (ATF)INFOID:0000000005892327
CAUTION:
If using the vehicle for towing, the A/T fl uid must be replaced

A/T FLUIDTM-181
< ON-VEHICLE MAINTENANCE >
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Changing the A/T Fluid (ATF)INFOID:0000000005892327
CAUTION:
If using the vehicle for towing, the A/T fl uid must be replaced as specified. Refer to MA-8, "Introduc-
tion of Periodic Maintenance".
1. Drive the vehicle to warm up the A/T fluid to approximately 80 ° C (176 ° F).
2. Stop the engine.
3. Remove the A/T fluid level gauge.
4. Drain the A/T fluid from the drai n plug hole, then install the drain
plug with a new gasket. Refill the transmission with new A/T
fluid. Always refill with the same volume as the drained A/T fluid.
Use the A/T fluid level gauge to check the A/T fluid level as
shown. Add A/T fluid as necessary.
To flush out the old A/T fluid from the transmission o il coolers, pour new A/T fluid into the A/T fluid charg-
ing pipe with the engine idling and at the same time drain the old A/T fluid from the auxiliary transmis-
sion oil cooler hose return line.
When the color of the A/T fluid coming out of the aux iliary transmission oil cooler hose return line is
about the same as the color of the new A/T fluid, flushing out the old A/T fluid is complete. The amount
of new A/T fluid used for flushing should be 30% to 50% increase of the specified capacity.
CAUTION:
If Genuine NISSAN Matic S ATF is not available, Genuine NISSAN Matic J ATF may also be used.
Using ATF fluid other than Genuine NISSAN Matic S ATF or Matic J ATF will cause deterioration
in driveability and A/T durability, and may damage the A/T, which is not covered by the warranty.
When filling the transmission with A/T fluid, do not spill the A/T fluid on any heat generating
parts such as the exhaust parts.
Do not reuse the drain plug gasket.
5. Install the A/T fluid level gauge and tighten t he A/T fluid level gauge bolt to specification.
6. Drive the vehicle to warm up the A/T fluid to approximately 80 ° C (176 ° F).
7. Check the fluid level and condition. If the A/T fluid is still dirty, repeat steps 2 through 6.
8. Install the A/T fluid level gauge in the A/T fluid charging pipe and install the A/T fluid level gauge bolt.
9. Tighten the A/T fluid level gauge bolt to specification. Drain plug : Refer to
TM-201, "Oil Pan"
.
LLIA0071E
A/T fluid grade and capacity : Refer to MA-12, "Fluids and Lubricants".
A/T fluid level
gauge bolt : Refer to
TM-214, "Removal and Installation (2WD)"
or TM-216, "Removal and
Installation (4WD)".
LLIA0071E
Revision: December 20092009 QX56

Page 3830 of 4171

INFINITI QX56 2009 Factory Service Manual
TM-182
< ON-VEHICLE MAINTENANCE >
A/T FLUID
A/T fluid level
gauge bolt: Refer to
TM-214, "Removal and Installation (2WD)" or TM-216, "Removal and
Installation (4WD)".
Revision: December 20092009 Q

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INFINITI QX56 2009 Factory Service Manual
A/T FLUID COOLERTM-183
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A/T FLUID COOLER
A/T Fluid Cooler CleaningINFOID:0000000004187475
Whenever an A/T is repaired, overhauled, or replaced

A/T FLUID COOLERTM-183
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A/T FLUID COOLER
A/T Fluid Cooler CleaningINFOID:0000000004187475
Whenever an A/T is repaired, overhauled, or replaced, t he A/T fluid cooler mounted in the radiator must be
inspected and cleaned.
Metal debris and friction material, if present, can becom e trapped in the A/T fluid cooler. This debris can con-
taminate the newly serviced A/T or, in severe cases, can bl ock or restrict the flow of A/T fluid. In either case,
malfunction of the newly serviced A/T may result.
Debris, if present, may build up as A/T fluid enters the c ooler inlet. It will be necessary to back flush the cooler
through the cooler outlet in order to flush out any built up debris.
A/T FLUID COOLER CLEANING PROCEDURE
1. Position a drain pan under the A/T inlet and outle t fluid cooler tube to cooler hose connection.
2. Put a different color matching mark on each cooler tube to cooler hose connection to aid in assembly. CAUTION:
Use paint to make the matching mark. Do not damage the tubes or hose.
3. Disconnect the fluid cooler inle t and outlet rubber hoses from the
steel cooler tubes.
NOTE:
Replace the cooler hoses if rubber material from the hose
remains on the tube fitting.
4. Drain any A/T fluid from the cooler hose.
5. Insert the extension adapter hose of a can of Transmission Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.
CAUTION:
Wear safety glasses and rubber gloves when spraying theTransmission Cooler Cleaner.
Spray cooler cleaner only with adequate ventilation.
Avoid contact with eyes and skin.
Do not breath vapors or spray mist.
6. Hold the hose and can as high as possible and spray Transmis- sion Cooler Cleaner in a continuous stream into the cooler outlet
hose until fluid flows out of the cooler inlet hose for 5 seconds.
7. Insert the tip of an air gun into the end of the cooler outlet hose.
8. Wrap a shop rag around the tip of the air gun and the cooler out- let hose.
9. Blow compressed air regulated to 490 - 883 kPa (5 - 9 kg/cm
2, 71 - 128 psi) through the cooler outlet hose
for 10 seconds to force out any remaining fluid.
10. Repeat steps 5 through 9 three additional times.
11. Position an oil pan under the banjo bolts that connect the fluid cooler tubes to the A/T.
12. Remove the banjo bolts.
SCIA3830E
SCIA3831E
SCIA3832E
Revision: December 20092009 QX56

Page 3832 of 4171

INFINITI QX56 2009 Factory Service Manual
TM-184
< ON-VEHICLE MAINTENANCE >
A/T FLUID COOLER
13. Flush each steel line from the cooler side back toward the A/T by spraying Transmission Cooler Cleanerin a continuous stream for 5 seconds.
14.

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