Nissan Pathfinder (2010 year). Instruction — part 628
TM-152
< PRECAUTION >
PRECAUTIONS
•
After performing each TROUBLE DIAGNOSIS, perform “DTC
(Diagnostic Trouble Code) CONFIRMATION PROCEDURE”.
If the repair is completed the DTC should not be displayed in
the “DTC CONFIRMATION PROCEDURE”.
• Always use the specified brand of ATF. Refer to
.
• Use lint-free paper not cloth rags during work.
• After replacing the ATF, dispose of the waste oil using the methods prescribed by law, ordinance, etc.
• Before proceeding with disassembly, thoroughly clean the outside of the transmission. It is important to pre-
vent the internal parts from becoming contaminated by dirt or other foreign matter.
• Disassembly should be done in a clean work area.
• Use lint-free paper or towels for wiping parts clean. Common shop rags can leave fibers that could interfere
with the operation of the transmission.
• Place disassembled parts in order for easier and proper assembly.
• All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
• Gaskets, seals and O-rings should be replaced any time the transmission is disassembled.
• It is very important to perform functional tests whenever they are indicated.
• The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent springs
and small parts from becoming scattered or lost.
• Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
• Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings and
seals, or hold bearings and washers in place during assembly. Do not use grease.
• Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
• Clean or replace ATF cooler if excessive foreign material is found in oil pan or clogging strainer. Refer to
152, "Service Notice or Precaution"
• After overhaul, refill the transmission with new ATF.
• When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque con-
verter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer to
TM-157, "Changing the A/T Fluid (ATF)"
TM-155, "Checking the A/T Fluid (ATF)"
Service Notice or Precaution
INFOID:0000000005258168
ATF COOLER SERVICE
If A/T fluid contains frictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced,
inspect and clean the A/T fluid cooler mounted in the radiator or replace the radiator. Flush cooler lines using
cleaning solvent and compressed air after repair. For A/T fluid cooler cleaning procedure, refer to
. For radiator replacement, refer to
CO-16, "Removal and Installation"
CO-44, "Removal and Installation"
(VK56DE).
OBD-II SELF-DIAGNOSIS
• A/T self-diagnosis is performed by the TCM in combination with the ECM. Refer to the table on
"CONSULT-III Function (TRANSMISSION)"
for the indicator used to display each self-diagnostic result.
• The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM memo-
ries.
Always perform the procedure on
TM-34, "OBD-II Diagnostic Trouble Code (DTC)"
to complete the
repair and avoid unnecessary blinking of the MIL.
For details of OBD-II, refer to
(VK56DE).
•
Certain systems and components, especially those related to OBD, may use the new style slide-lock-
ing type harness connector. For description and how to disconnect, refer to
.
SEF217U
2010 Pathfinder
PREPARATION
TM-153
< PREPARATION >
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PREPARATION
PREPARATION
Special Service Tool
INFOID:0000000005258169
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
ST2505S001
(J-34301-C)
Oil pressure gauge set
1 ST25051001
( — )
Oil pressure gauge
2 ST25052000
( — )
Hose
3 ST25053000
( — )
Joint pipe
4 ST25054000
( — )
Adapter
5 ST25055000
( — )
Adapter
Measuring line pressure
KV31103600
(J-45674)
Joint pipe adapter
(With ST25054000)
Measuring line pressure
ST33400001
(J-26082)
Drift
• Installing rear oil seal (2WD models)
• Installing oil pump housing oil seal
a: 60 mm (2.36 in) dia.
b: 47 mm (1.85 in) dia.
KV31102400
(J-34285 and J-34285-87)
Clutch spring compressor
Installing reverse brake return spring retainer
a: 320 mm (12.60 in)
b: 174 mm (6.85 in)
LCIA0399E
ZZA1227D
NT086
NT423
2010 Pathfinder
TM-154
< PREPARATION >
PREPARATION
Commercial Service Tool
INFOID:0000000005258170
ST25850000
(J-25721-A)
Sliding hammer
Remove oil pump assembly
a: 179 mm (7.05 in)
b: 70 mm (2.76 in)
c: 40 mm (1.57 in)
d: M12X1.75P
—
(J-47002)
Transmission jack adapter kit
1.
—
(J-47002-1)
Center bracket
2.
—
(J-47002-3)
Adapter plate
3.
—
(J-47002-4)
Adapter block
Assist in removal of transmission and transfer
case as one assembly using only one trans-
mission jack.
Tool number
(Kent-Moore No.)
Tool name
Description
NT422
WCIA0499E
Tool name
Description
Power tool
Loosening bolts and nuts
Drift
Installing instruction shaft seals
a: 22 mm (0.87 in) dia.
Drift
Installing rear oil seal (4WD models)
a: 64 mm (2.52 in) dia.
Pin punch
• Removing retaining pin
• Installing retaining pin
a: 4 mm (0.16 in) dia.
PBIC0190E
NT083
SCIA5338E
NT410
2010 Pathfinder
A/T FLUID
TM-155
< ON-VEHICLE MAINTENANCE >
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ON-VEHICLE MAINTENANCE
A/T FLUID
Checking the A/T Fluid (ATF)
INFOID:0000000005258171
CAUTION:
If using the vehicle for towing, the A/T fluid must be replaced as specified. Refer to
1. Before driving, the A/T fluid level can be checked at A/T fluid
temperatures of 30
°
to 50
°
C (86
°
to 122
°
F) using the “COLD”
range on the A/T fluid level gauge as follows:
a. Park the vehicle on a level surface and set the parking brake.
b. Start the engine and move the selector lever through each gear
position. Shift the selector lever into the “P” position.
c. Check the A/T fluid level with the engine idling.
d. Remove the A/T fluid level gauge and wipe it clean with a lint-
free paper.
CAUTION:
When wiping the A/T fluid from the A/T fluid level gauge,
always use a lint-free paper, not a cloth.
e. Re-insert the A/T fluid level gauge into the A/T fluid charging
pipe until the cap contacts the top of the A/T fluid charging pipe
as shown.
CAUTION:
To check A/T fluid level, insert the A/T fluid level gauge until
the cap contacts the top of the A/T fluid charging pipe, with
the gauge reversed from the normal inserted position.
f.
Remove the A/T fluid level gauge and note the A/T fluid level. If
the A/T fluid level is at low side of range, add A/T fluid to the
transmission through the A/T fluid charging pipe.
CAUTION:
Do not overfill the transmission with A/T fluid.
g. Install the A/T fluid level gauge and the A/T fluid level gauge bolt.
2. Warm up the engine and transmission.
3. Check for any A/T fluid leaks.
4. Drive the vehicle to increase the A/T fluid temperature to 80
°
C (176
°
F).
LLIA0071E
A/T fluid level gauge bolt
: Refer to
(4WD).
SCIA2899E
2010 Pathfinder
TM-156
< ON-VEHICLE MAINTENANCE >
A/T FLUID
5. Allow the A/T fluid temperature to fall to approximately 65
°
C (149
°
F). Use the CONSULT-II to monitor the
A/T fluid temperature as follows:
NOTE:
The A/T fluid level will be significantly affected by the A/T fluid temperature as shown. Therefore monitor
the A/T fluid temperature data using the CONSULT-III.
a. Connect CONSULT-III to data link connector.
b. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-III.
c.
Read out the value of “ATF TEMP 1”.
6. Re-check the A/T fluid level at A/T fluid temperatures of approxi-
mately 65
°
C (149
°
F) using the “HOT” range on the A/T fluid
level gauge as shown. The HOT range is between 50
°
- 80
°
C
(122
°
- 176
°
F).
CAUTION:
• When wiping the A/T fluid from the A/T fluid level gauge,
always use lint-free paper, not a cloth.
• To check the A/T fluid level, insert the A/T fluid level
gauge until the cap contacts the top of the A/T fluid charg-
ing pipe, with the gauge reversed from the normal
inserted position as shown.
7. Check the A/T fluid condition.
• If the A/T fluid is very dark or has some burned smell, there
may be an internal problem with the transmission. Refer to
. Flush the transmission cooling system after repairing
the transmission.
• If the A/T fluid contains frictional material (clutches, bands,
etc.), replace the radiator and flush the transmission cooler
lines using cleaning solvent and compressed air after repairing
the transmission.
8. Install the A/T fluid level gauge in the A/T fluid charging pipe.
9. Tighten the A/T fluid level gauge bolt to specification.
SLIA0016E
LLIA0071E
A/T fluid level gauge bolt
: Refer to
(4WD).
SCIA2899E
2010 Pathfinder
A/T FLUID
TM-157
< ON-VEHICLE MAINTENANCE >
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Changing the A/T Fluid (ATF)
INFOID:0000000005258172
CAUTION:
If using the vehicle for towing, the A/T fluid must be replaced as specified. Refer to
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 drain 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 oil 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 auxiliary 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 automatic transmission fluid other than Genuine NISSAN Matic S or Matic J will cause
deterioration in driveability. and may damage automatic transmission, which is not covered by
the NISSAN new vehicle limited 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 manifold.
• Do not reuse the drain plug gasket.
5. Install the A/T fluid level gauge and tighten the 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
LLIA0071E
A/T fluid grade and capacity
: Refer to
A/T fluid level gauge bolt
: Refer to
(4WD).
LLIA0071E
2010 Pathfinder
TM-158
< ON-VEHICLE MAINTENANCE >
A/T FLUID
A/T Fluid Cooler Cleaning
INFOID:0000000005258173
Whenever an A/T is repaired, overhauled, or replaced, the A/T fluid cooler mounted in the radiator must be
inspected and cleaned.
Metal debris and friction material, if present, can become trapped in the A/T fluid cooler. This debris can con-
taminate the newly serviced A/T or, in severe cases, can block 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 cooler 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 outlet 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 inlet 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 the
Transmission 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 5 - 9 kg/cm
2
(70 - 130 psi) through the cooler outlet hose for 10 seconds
to force out any remaining fluid.
A/T fluid level gauge bolt
: Refer to
(4WD).
SCIA3830E
SCIA3831E
SCIA3832E
2010 Pathfinder
A/T FLUID
TM-159
< ON-VEHICLE MAINTENANCE >
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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.
13. Flush each steel line from the cooler side back toward the A/T by spraying Transmission Cooler Cleaner
in a continuous stream for 5 seconds.
14. Blow compressed air regulated to 5 - 9 kg/cm
2
(70 - 130 psi) through each steel line from the cooler side
back toward the A/T for 10 seconds to force out any remaining fluid.
15. Ensure all debris is removed from the steel cooler lines.
16. Ensure all debris is removed from the banjo bolts and fittings.
17. Perform "A/T FLUID COOLER DIAGNOSIS PROCEDURE".
A/T FLUID COOLER DIAGNOSIS PROCEDURE
NOTE:
Insufficient cleaning of the cooler inlet hose exterior may lead to inaccurate debris identification.
1. Position a drain pan under the A/T inlet and outlet fluid cooler tube to cooler hose connection.
2. Clean the exterior and tip of the cooler inlet hose.
3. 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.
4. Disconnect the fluid cooler inlet 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.
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 the
Transmission 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. Tie a common white, basket-type coffee filter to the end of the
cooler inlet hose.
SCIA3830E
SCIA3831E
SCIA3833E
2010 Pathfinder
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