Air INFINITI QX56 2010 Factory Service Manual

TM-154
< ON-VEHICLE MAINTENANCE >
A/T FLUID COOLER
8. Insert the tip of an air gun into the end of the cooler outlet hose.
9. Wrap a shop rag around the air gun tip and end of cooler outlethose.
10. Blow compressed air regulated to 490 - 883 kPa (5 - 9 kg/cm
2,
71 - 128 psi) through the cooler outlet hose to force any remain-
ing A/T fluid into the coffee filter.
11. Remove the coffee filter from the end of the cooler inlet hose.
12. Perform A/T fluid cooler inspection. Refer to TM-152, "
A/T Fluid
Cooler Cleaning".
A/T FLUID COOLER INSPECTION PROCEDURE
1. Inspect the coffee filter for debris.
a. If small metal debris less than 1mm (0.040 in) in size or metal
powder is found in the coffee filter, this is normal. If normal
debris is found, the A/T fluid cooler/radiator can be re-used and
the procedure is ended.
b. If one or more pieces of debris are found that are over 1mm (0.040 in) in size and/or peeled clutch facing material is found in
the coffee filter, the fluid cooler is not serviceable. The A/T fluid
cooler/radiator must be replaced and the inspection procedure is
ended. Refer to CO-15, "
Removal and Installation".
A/T FLUID COOLER FINAL INSPECTION
After performing all procedures, ensure that all remaining oil is cleaned from all components.
InspectionINFOID:0000000005148725
After performing all procedures, ensure that all remaining oil is cleaned from all components.
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ROAD TESTTM-163
< ON-VEHICLE MAINTENANCE >
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Check engine brake.
Does engine braking effectively reduce speed in 1
1 position?
YES >> Check malfunction phenomena to repair or replace malfunctioning part. Refer to TM-121, "Symp-
tom Table".
NO >> 1. Record the malfunction. 2. Check malfunction phenomena to repair or replace malfunctioning part. Refer to TM-121,
"Symptom Table".
Vehicle Speed When Shifting GearsINFOID:0000000005148734
Refer to TM-265, "Vehicle Speed at Which Gear Shifting Occurs".
Vehicle Speed When Performing and Releasing Complete Lock-upINFOID:0000000005148735
Refer to TM-266, "Vehicle Speed at Which Lock-up Occurs/Releases".
Revision: April 20092010 QX56

SHIFT CONTROL SYSTEMTM-165
< ON-VEHICLE REPAIR >
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ON-VEHICLE REPAIR
SHIFT CONTROL SYSTEM
A/T Shift Selector Removal and InstallationINFOID:0000000005148738
REMOVAL
1. Remove A/T finisher. Refer to IP-19, "Removal and Installation".
2. Disconnect A/T shift selector control cable.
3. Disconnect A/T shift selector harness connector.
4. Remove control device assembly.
INSTALLATION
Installation is in reverse order of removal. Be careful of the following:
• After installation is completed, adjust and check A/T position. Refer to TM-164, "
Adjustment of A/T Position",
TM-164, "
Checking of A/T Position".
1. Select lever knob 2. A/T console finisher3. A/T shift selector assembly
4. Position lamp 5. A/T shift selector control cable 6. Lock plate
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TM-166
< ON-VEHICLE REPAIR >
AIR BREATHER HOSE
AIR BREATHER HOSE
Removal and InstallationINFOID:0000000005402587
REMOVAL and INSTALLATION
2WD
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.
REMOVAL
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A. Set air breather hose with
paint mark at upper side B. Clip (set securely to bracket)
Revision: April 20092010 QX56

AIR BREATHER HOSETM-167
< ON-VEHICLE REPAIR >
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4WD
INSTALLATION
CAUTION:
Make sure there are no pinched or restricted areas on each air breather hose caused by folding or
bending when installing it.
1. Install each air breather hose into the breather tube (4). Set each air breather hose with paint mark facing upward.
• A/T breather hose (1)
• Transfer breather hose (2)
• Actuator/transfer motor breather hose (3)
• Paint marks (A)
2. Install actuator/transfer motor air breather hose (1) and transfer air breather hose (2) on clip (A) with the paint mark (B) facing
upward.
• :Front
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1. Breather tube 2. Clip A3. Clip B
4. Clip C 5. Clip D6. Actuator
7. Air breather hose clamp 8. Clip E 9. Transfer motor
10. Breather tube (transfer) Vehicle front
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TM-168
< ON-VEHICLE REPAIR >
AIR BREATHER HOSE
3. Install clip (B) on actuator/transfer motor air breather hose (1)
and transfer air breather hose (2) with the paint mark (A)
matched.
• :Front
4. Install actuator/transfer motor air breather hose (1) and transfer air breather hose (2) on clip (B) and clip (C) with the paint mark
(A) and (D) facing upward.
• :Front
5. Install the actuator air breather hose into the actuator (case con- nector) until the hose end reaches the base of the tube. Set
actuator air breather hose with paint mark facing leftward.
6. Install clip (B) on transfer motor air breather hose (2) and trans- fer air breather hose (1) with the paint mark (A) matched.
• :Front
7. Install the transfer air breather hose into the breather tube (transfer, metal connector) until the hose end reaches the base
of the tube. Set transfer air breather hose with paint mark facing
upwards.
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AIR BREATHER HOSETM-169
< ON-VEHICLE REPAIR >
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8. Install the transfer motor air breather hose into the transfer motor (case connector) until the hose end reaches the end of
the curved section. Set transfer motor air breather hose with
paint mark facing leftward.
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TM-170
< ON-VEHICLE REPAIR >
OIL PAN
OIL PAN
Oil PanINFOID:0000000005148740
REMOVAL AND INSTALLATION
Removal
1. Drain A/T fluid. Refer to TM-150, "Changing the A/T Fluid (ATF)".
2. Remove oil pan clips (1).
3. Remove oil pan (2).
4. Remove oil pan gasket. • : Vehicle front
• : Oil pan bolts
• Drain plug (3)
5. Check foreign materials in oil pan to help determine c ause of malfunction. If the A/T fluid is very dark, has
some burned smell, or contains foreign particles, friction 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.
CAUTION:
If friction material is detected, flush the transmission cooler after repair. Refer to TM-152, "
A/T
Fluid Cooler Cleaning".
6. Remove magnets from oil pan.
Installation
1. Install the oil pan magnets as shown.
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OIL PANTM-171
< ON-VEHICLE REPAIR >
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2. Install the oil pan and new oil pan gasket. • : Vehicle front
• : Oil pan bolts
• Clips (1)
• Drain plug (3)
CAUTION:
• Be sure the oil pan drain plug hole is located to the rear ofthe transmission assembly.
• Before installing oil pan bolts, remove any traces of old sealant from the sealing su rfaces and threaded holes.
• Do not reuse the oil pan gasket.
• Always replace the oil pan bolts as they are self-sealing.
• Partially install the oil pan bo lts in a criss-cross pattern to prevent dislocation of the gasket.
3. Install new oil pan bolts and clips tighten in numerical order as shown.
4. Install drain plug with new gasket to oil pan and tighten to speci- fication.
CAUTION:
Do not reuse the drain plug gasket.
5. Refill the A/T with fluid and check for fluid leakage. Refer to TM-
148, "Checking the A/T Fluid (ATF)".
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Oil pan bolts : 7.9 N·m (0.81 kg-m, 70 in-lb)
Drain plug : 34 N·m (3.5 kg-m, 25 ft-lb)
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Revision: April 20092010 QX56

TM-172
< ON-VEHICLE REPAIR >
CONTROL VALVE WITH TCM
CONTROL VALVE WITH TCM
Control Valve with TCM and A/T Fluid Temperature Sensor 2 and PlugINFOID:0000000005148741
COMPONENTS
CONTROL VALVE WITH TCM REMOVAL AND INSTALLATION
Removal
1. Disconnect negative battery terminal.
2. Drain A/T fluid. Refer to TM-150, "
Changing the A/T Fluid (ATF)".
3. Disconnect A/T assembly harness connector.
1. Transmission 2. Snap ring3. Sub-harness
4. Control valve with TCM 5. Bracket 6. A/T fluid temperature sensor 2
7. Oil pan gasket 8. Brackets9. Oil pan bolt
10. Oil pan 11. Magnet12. Drain plug
13. Drain plug gasket 14. Terminal cord assembly 15. O-ring
16. O-ring 17. Plug
A/T fluid temperature sensor 2 (A) can be changed to plug (B), depending on vehicles.
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Revision: April 20092010 QX56