Nissan Pathfinder (2012 year). Instruction — part 591
PREPARATION
TM-155
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PREPARATION
PREPARATION
Special Service Tool
INFOID:0000000007357289
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)
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
LCIA0399E
ZZA1227D
NT086
NT423
NT422
August 2012
2012 Pathfinder
TM-156
< PREPARATION >
PREPARATION
Commercial Service Tool
INFOID:0000000007357290
—
(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.
—
(J-46534)
Trim tool set
Removing trim components
Tool number
(Kent-Moore No.)
Tool name
Description
WCIA0499E
AWJIA0483ZZ
Tool name
Description
Power tool
Loosening nuts, screws and bolts
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.
PIIB1407E
NT083
SCIA5338E
NT410
August 2012
2012 Pathfinder
A/T FLUID
TM-157
< PERIODIC MAINTENANCE >
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PERIODIC MAINTENANCE
A/T FLUID
Checking the A/T Fluid (ATF)
INFOID:0000000007357291
CAUTION:
If using the vehicle for towing, the A/T fluid must be replaced as specified. Refer to
AND CANADA : Introduction to Periodic Maintenance"
(United States and Canada) and
MEXICO : Periodic Maintenance Schedule"
(Mexico).
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
August 2012
2012 Pathfinder
TM-158
< PERIODIC MAINTENANCE >
A/T FLUID
5. Allow the A/T fluid temperature to fall to approximately 65
°
C (149
°
F). Use the CONSULT 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.
a. Connect CONSULT to data link connector.
b. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT.
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
August 2012
2012 Pathfinder
A/T FLUID
TM-159
< PERIODIC MAINTENANCE >
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Changing the A/T Fluid (ATF)
INFOID:0000000007357292
CAUTION:
If using the vehicle for towing, the A/T fluid must be replaced as specified. Refer to
AND CANADA : Introduction to Periodic Maintenance"
(United States and Canada) and
MEXICO : Periodic Maintenance Schedule"
(Mexico).
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.
Drain plug
: Refer to
LLIA0071E
A/T fluid grade and capacity
: Refer to
MA-11, "FOR USA AND CANADA : Introduction to Pe-
(United States and Canada) and
"FOR MEXICO : Periodic Maintenance Schedule"
A/T fluid level gauge bolt
: Refer to
(4WD).
LLIA0071E
August 2012
2012 Pathfinder
TM-160
< PERIODIC MAINTENANCE >
A/T FLUID
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.
A/T Fluid Cooler Cleaning
INFOID:0000000007357293
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.
A/T fluid level gauge bolt
: Refer to
(4WD).
SCIA3830E
SCIA3831E
SCIA3832E
August 2012
2012 Pathfinder
A/T FLUID
TM-161
< PERIODIC MAINTENANCE >
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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.
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
August 2012
2012 Pathfinder
TM-162
< PERIODIC MAINTENANCE >
A/T FLUID
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 outlet
hose.
10. Blow compressed air regulated to 5 - 9 kg/cm
2
(70 - 130 psi)
through the cooler outlet hose to force any remaining 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
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-17, "Removal and Installation"
(VQ40DE)
CO-46, "Removal and Installation"
for (VK56DE).
A/T FLUID COOLER FINAL INSPECTION
After performing all procedures, ensure that all remaining oil is cleaned from all components.
SCIA3834E
SCIA2967E
SCIA5659E
August 2012
2012 Pathfinder
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