![NISSAN X-TRAIL 2001 Service Repair Manual FL-8
[QR]
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
3. Separate the fuel filter and fuel level sensor unit.
a. Fit a used O-ring into space between fuel level sensor unit and
fuel NISSAN X-TRAIL 2001 Service Repair Manual FL-8
[QR]
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
3. Separate the fuel filter and fuel level sensor unit.
a. Fit a used O-ring into space between fuel level sensor unit and
fuel](/manual-img/5/57405/w960_57405-1931.png)
FL-8
[QR]
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
3. Separate the fuel filter and fuel level sensor unit.
a. Fit a used O-ring into space between fuel level sensor unit and
fuel filter. Undo catches and separate fuel level sensor unit and
fuel filter.
●For reference when reassembling, put a mating mark on outer
edges of fuel level sensor unit and fuel filter with some means
which cannot be erased by fuel.
b. Insert blade end screwdriver to the gap between the fuel filter
and fuel level sensor unit to separate them.
CAUTION:
Put cloth or similar one on the edge of screwdriver not to
damage the inserted portion.
4. Remove pressure regulator from fuel filter.
a. Open and remove the clip.
b. Pull the pressure regulator straight out during removal.
CAUTION:
●Avoid impacts such as falling during removal.
●Do not disassemble or adjust.
ASSEMBLY
Install in the reverse order of removal paying attention to the following.
●Install the fuel filter and fuel pump with the tabs aligned, Make sure a click sound of secure engagement is
heard.
●Securely connect the harness connector of the fuel pump.
●Install the pressure regulator O-ring as follows.
CAUTION:
●When replacing, always use a new O-ring.
●Handle it with bare hands. (Do not use gloves.)
●Visually check the O-ring, mounting parts and mating parts for foreign materials and flaws.
●Before installing, apply new engine oil.
●To avid damage, do not apply an excessive force (pulling or starching).
●Install the pressure regulator as follows.
1. Insert the clip to the groove of the pressure regulator.
2. With the clip installed, insert the pressure regulator straight by
matching the fuel filter protrusion and the clip notch.
3. Make sure that the fuel filter protrusion and clip notch are
securely engaged.
PBIC0244E
PBIC0245E

MT-1
MANUAL TRANSAXLE
C TRANSMISSION/TRANSAXLE
CONTENTS
D
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F
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H
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M
SECTION
A
B
MT
MANUAL TRANSAXLE
PRECAUTIONS .......................................................... 3
Caution ..................................................................... 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 6
NOISE, VIBRATION, AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 7
NVH Troubleshooting Chart ..................................... 7
MANUAL TRANSAXLE ......................................... 7
DESCRIPTION ............................................................ 8
Cross-Sectional View ............................................... 8
DOUBLE-CONE SYNCHRONIZER ...................... 9
REVERSE GEAR NOISE PREVENTION FUNC-
TION (SYNCHRONIZING METHOD) ................... 9
M/T OIL ..................................................................... 10
Changing M/T Oil ................................................... 10
DRAINING ........................................................... 10
FILLING ............................................................... 10
Checking M/T Oil .................................................... 10
OIL LEAKAGE AND OIL LEVEL ......................... 10
SIDE OIL SEAL .........................................................11
Removal and Installation ......................................... 11
REMOVAL ............................................................ 11
INSTALLATION .................................................... 11
POSITION SWITCH .................................................. 12
Checking ................................................................ 12
BACK-UP LAMP SWITCH .................................. 12
PARK/NEUTRAL POSITION SWITCH ............... 12
CONTROL LINKAGE ............................................... 13
Removal and Installation of Control Device and
Cable ...................................................................... 13
AIR BREATHER HOSE ............................................ 14
Removal and Installation ........................................ 14
TRANSAXLE ASSEMBLY ........................................ 15
Removal and Installation ........................................ 15
REMOVAL ........................................................... 15
INSTALLATION ................................................... 16
Component Parts (RS5F51A) ................................ 17CASE AND HOUSING COMPONENTS .............. 17
GEAR COMPONENTS ....................................... 18
SHIFT CONTROL COMPONENTS ..................... 20
FINAL DRIVE COMPONENTS ........................... 21
Component Parts (RS6F51A) ................................. 22
CASE AND HOUSING COMPONENTS .............. 22
GEAR COMPONENTS ....................................... 23
SHIFT CONTROL COMPONENTS ..................... 25
FINAL DRIVE COMPONENTS ........................... 26
Disassembly and Assembly (RS5F51A) ................. 26
DISASSEMBLY ................................................... 26
ASSEMBLY ......................................................... 30
Disassembly and Assembly (RS6F51A) ................. 35
DISASSEMBLY ................................................... 35
ASSEMBLY ......................................................... 39
Adjustment (RS5F51A) ........................................... 45
INPUT SHAFT END PLAY .................................. 45
MAINSHAFT END PLAY ..................................... 46
DIFFERENTIAL SIDE BEARING PRELOAD ...... 47
REVERSE IDLER GEAR END PLAY .................. 48
Adjustment (RS6F51A) ........................................... 49
INPUT SHAFT END PLAY .................................. 49
MAINSHAFT END PLAY ..................................... 50
DIFFERENTIAL SIDE BEARING PRELOAD ...... 51
REVERSE IDLER GEAR END PLAY .................. 52
INPUT SHAFT AND GEARS .................................... 54
Assembly and Disassembly (RS5F51A) ................. 54
DISASSEMBLY ................................................... 54
INSPECTION AFTER DISASSEMBLY ................ 55
ASSEMBLY ......................................................... 57
Assembly and Disassembly (RS6F51A) ................. 61
DISASSEMBLY ................................................... 61
INSPECTION AFTER DISASSEMBLY ................ 62
ASSEMBLY ......................................................... 64
MAINSHAFT AND GEARS ....................................... 68
Assembly and Disassembly (RS5F51A) ................. 68
DISASSEMBLY ................................................... 68
INSPECTION AFTER DISASSEMBLY ................ 69

PRECAUTIONS
MT-3
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B
MT
PRECAUTIONSPFP:00001
CautionECS008BM
●Do not reuse transaxle oil, once it has been drained.
●Check oil level or replace oil with vehicle on level ground.
●During removal or installation, keep inside of transaxle clear of dust or dirt.
●Check for the correct installation status prior to removal or disassembly. If mating marks are required, be
certain they do not interfere with the function of the parts they are applied to.
●In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If
tightening sequence is specified, observe it.
●Be careful not to damage sliding surfaces and mating surfaces.

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
MT-7
D
E
F
G
H
I
J
K
L
MA
B
MT
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartECS008BP
Use the chart below to help you find the cause of the symptom. The numbers indicate the order of the inspec-
tion. If necessary, repair or replace these parts.
MANUAL TRANSAXLE
Reference pageMA-35
MT-17
(RS5F51A), MT-22
(RS6F51A)
MT-17
(RS5F51A), MT-22
(RS6F51A)
MT-17
(RS5F51A), MT-22
(RS6F51A)
MT-13
MT-20
(RS5F51A), MT-25
(RS6F51A)
MT-20
(RS5F51A), MT-25
(RS6F51A)
MT-18
(RS5F51A), MT-23
(RS6F51A)
MT-18
(RS5F51A), MT-23
(RS6F51A)
MT-18
(RS5F51A), MT-23
(RS6F51A)
MT-18
(RS5F51A), MT-23
(RS6F51A)
SUSPECTED PARTS
(Possible cause)
OIL (Oil level is low.)
OIL (Wrong oil.)
OIL (Oil level is high.)
GASKET (Damaged)
OIL SEAL (Worn or damaged)
O-RING (Worn or damaged)
SHIFT CONTROL LINKAGE (Worn)
CHECK PLUG RETURN SPRING AND CHECK BALL (Worn or damaged)
SHIFT FORK (Worn)
GEAR (Worn or damaged)
BEARING (Worn or damaged)
BAULK RING (Worn or damaged)
INSERT SPRING (Damaged)
SymptomsNoise 1 2 3 3
Oil leakage 3 1 2 2 2
Hard to shift or will not shift 1 1 2 3 3
Jumps out of gear 1 2 3 3

MT-10
M/T OIL
M/T OIL
PFP:KLD20
Changing M/T OilECS008BR
DRAINING
1. Start the engine and let it run to warm up the transaxle.
2. Stop the engine. Remove drain plug and drain oil.
3. Set a gasket on the drain plug and install it to the transaxle.
CAUTION:
Do not reuse gasket.
FILLING
1. Remove filler plug. Fill with new oil until oil level reaches the specified limit near filler plug mounting hole.
2. After refilling oil, check oil level. Assemble gasket to filler plug, then install it to transaxle body.
CAUTION:
Do not reuse gasket.
Checking M/T OilECS008BS
OIL LEAKAGE AND OIL LEVEL
●Check that oil is not leaking from transaxle or around it.
●Check oil level from filler plug mounting hole as shown in the fig-
ure.
CAUTION:
Never start engine while checking oil level.
●Set a new gasket on the filler plug and install it on the transaxle.
CAUTION:
Do not reuse gasket.Drain plug:
: 30 - 39 N·m (3.1 - 3.9 kg-m, 23 - 28 ft-lb)
Oil grade : API GL-4
Capacity (reference)
: Approx. 2.3 (4 lmp pt)
Filler plug:
: 30 - 39 N·m (3.1 - 3.9 kg-m, 23 - 28 ft-lb)
Filler plug:
: 30 - 39 N·m (3.1 - 3.9 kg-m, 23 - 28 ft-lb)
SCIA0361E

SIDE OIL SEAL
MT-11
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B
MT
SIDE OIL SEALPFP:32113
Removal and InstallationECS008BT
REMOVAL
●Clutch housing side oil seal used on 4WD vehicles is attached to the transfer. Be sure to replace it
when transfer is removed.
1. Remove the drive shaft from the transaxle.
2. Remove oil seal with flat tip screwdriver.
CAUTION:
Be careful not to damage the case surface when removing
the oil seal.
INSTALLATION
1. Using a drift (special service tool), drive the oil seal straight until
it protrudes from the case end equal to dimension A shown in
the figure.
CAUTION:
●When installing oil seals, apply multi-purpose grease to oil seal lips.
●Oil seals are not reusable. Never reuse them.
2. Install all parts in reverse order of removal and check oil level after installation.
SCIA0824E
Dimension "A":
Within 0.5 mm (0.020 in) of flush with the case.
Drift to be used:
Transaxle case side: ST30720000
Clutch housing side: ST30720000
SCIA0352E

MT-16
TRANSAXLE ASSEMBLY
15. Remove transaxle from vehicle.
INSTALLATION
Paying attention to the following items, install in the reverse order of removal.
●When installing the transaxle to the engine, tighten to the specified torque.
CAUTION:
When installing transaxle, be careful not to bring transaxle input shaft into contact with the clutch
cover.
QR engine models:
*: Tightening the bolt for 4WD models.
YD engine models:
●After installation, check oil level, and look for leaks and loose
mechanisms.
MTD0062D
Bolt No. 1 2 3* 4 5 6
Quantity 2 1 1 2 2 2
“ ” mm (in)40
(1.57)75
(2.95)45
(1.77)40
(1.57)30
(1.18)40
(1.57)
Tightening torque
N·m (kg - m, ft- lb)69.6 - 79.4
(7.1 - 8.1, 52 - 58)39.2 - 46.1
(4.0 - 4.7, 29 - 34)30.4 - 40.2
(3.1 - 4.1,
23 - 29)
Bolt No. 1 2 3 4 5 6
Quantity 2 2 1 1 3 1
“ ” mm (in)55
(2.17)70
(2.76)120
(4.72)45
(1.77)40
(1.57)35
(1.38)
Tightening torque
N·m (kg - m, ft- lb)40 - 49
(4.0 - 5.0, 29 - 36)31 - 36
(3.1 - 3.7, 23 - 26)
SCIA0353E
SCIA0748E

AT-34
OVERALL SYSTEM
Control Valve
ECS004QG
FUNCTION OF CONTROL VALVES
Valve name Function
Pressure regulator valve, plug
and sleeveRegulates oil discharged from the oil pump to provide optimum line pressure for all driving condi-
tions.
Pressure modifier valve and
sleeveUsed as a signal supplementary valve to the pressure regulator valve. Regulates pressure-modi-
fier pressure (signal pressure) which controls optimum line pressure for all driving conditions.
Pilot valve Regulates line pressure to maintain a constant pilot pressure level which controls lock-up mecha-
nism, overrun clutch, shift timing.
Accumulator control valve Regulates accumulator back-pressure to pressure suited to driving conditions.
Manual valve Directs line pressure to oil circuits corresponding to select positions.
Hydraulic pressure drains when the shift lever is in Neutral.
Shift valve A Simultaneously switches four oil circuits using output pressure of shift solenoid valve A to meet
driving conditions (vehicle speed, throttle opening, etc.).
Provides automatic downshifting and up-shifting (1st → 2nd → 3rd → 4th gears/4th → 3rd → 2nd
→ 1st gears) in combination with shift valve B.
Shift valve B Simultaneously switches three oil circuits using output pressure of shift solenoid valve B in rela-
tion to driving conditions (vehicle speed, throttle opening, etc.).
Provides automatic downshifting and up-shifting (1st → 2nd → 3rd → 4th gears/4th → 3rd → 2nd
→ 1st gears) in combination with shift valve A.
Overrun clutch control valve Switches hydraulic circuits to prevent engagement of the overrun clutch simultaneously with appli-
cation of the brake band in D
4 . (Interlocking occurs if the overrun clutch engages during D4 .)
1st reducing valve Reduces low & reverse brake pressure to dampen engine-brake shock when down-shifting from
the “1” position 1
2 to 11 .
Overrun clutch reducing valve Reduces oil pressure directed to the overrun clutch and prevents engine-brake shock.
In “1” and “2” positions, line pressure acts on the overrun clutch reducing valve to increase the
pressure-regulating point, with resultant engine brake capability.
Torque converter relief valve Prevents an excessive rise in torque converter pressure.
Torque converter clutch control
valve, plug and sleeveActivates or inactivates the lock-up function.
Also provides smooth lock-up through transient application and release of the lock-up system.
1-2 accumulator valve and piston Dampens the shock encountered when 2nd gear band servo contracts, and provides smooth
shifting.
3-2 timing valve Switches oil pressure with 3-2 timing valve according to throttle opening.
Shuttle control valve Reduces shock when down-shifting from 3rd to 2nd and regulates overrun clutch.
Cooler check valve Regulates oil pressure which causes lock-up when driving at low speeds.