Nissan Silvia. Instruction — part 2
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Before proceeding with disassembly, thoroughly clean the out-
side of the transmission. It is important to prevent the internal
parts from becoming contaminated by dirt or other foreign mat-
ter.
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Disassembly should be done in a clean work area.
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Use lint-free cloth or towels for wiping parts clean. Common
shop rags can leave fibers that could interfere with the opera-
tion of the transmission.
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Place disassembled parts in order for easier and proper
assembly.
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All parts should be carefully cleaned with a general purpose,
non-flammable solvent before inspection or reassembly.
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Gaskets, seals and O-rings should be replaced any time the
transmission is disassembled.
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It is very important to perform functional tests whenever they
are indicated.
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The valve body contains precision parts and requires extreme
care when parts are removed and serviced. Place disas-
sembled valve body parts in order for easier and proper
assembly. Care will also prevent springs and small parts from
becoming scattered or lost.
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Properly installed valves, sleeves, plugs, etc. will slide along
bores in valve body under their own weight.
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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.
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Extreme care should be taken to avoid damage to O-rings,
seals and gaskets when assembling.
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After overhaul, refill the transmission with new ATF.
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When the A/T drain plug is removed, only some of the fluid is
drained. Old A/T fluid will remain in torque converter and ATF
cooling system.
Always follow the procedures when changing A/T fluid. Refer
to “Changing A/T Fluid”, AT-9.
Service Notice or Precautions
NMAT0004
FAIL-SAFE
NMAT0004S01
The TCM has an electronic Fail-Safe (limp home mode). This allows the vehicle to be driven even if a major
electrical input/output device circuit is damaged.
Under Fail-Safe, the vehicle always runs in third gear, even with a shift lever position of “1”, “2” or “D”. The
customer may complain of sluggish or poor acceleration.
When the ignition key is turned “ON” following Fail-Safe operation, POWER indicator lamp blinks for about 8
seconds. [For “SELF-DIAGNOSTIC PROCEDURE (Without CONSULT-II)”, refer to AT-37.]
The blinking of the POWER indicator lamp for about 8 seconds will appear only once and be cleared. The
customer may resume normal driving conditions.
Always follow the “WORK FLOW” (Refer to AT-46).
GI
MA
EM
LC
EC
FE
CL
MT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
PRECAUTIONS
Precautions (Cont’d)
AT-5
The SELF-DIAGNOSIS results will be as follows:
The first SELF-DIAGNOSIS will indicate damage to the vehicle speed sensor or the revolution sensor.
During the next SELF-DIAGNOSIS, performed after checking the sensor, no damages will be indicated.
TORQUE CONVERTER SERVICE
NMAT0004S04
The torque converter should be replaced under any of the following conditions:
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External leaks in the hub weld area.
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Converter hub is scored or damaged.
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Converter pilot is broken, damaged or fits poorly into crankshaft.
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Steel particles are found after flushing the cooler and cooler lines.
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Pump is damaged or steel particles are found in the converter.
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Vehicle has TCC shudder and/or no TCC apply. Replace only after all hydraulic and electrical diagnoses
have been made. (Converter clutch material may be glazed.)
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Converter is contaminated with engine coolant containing antifreeze.
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Internal failure of stator roller clutch.
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Heavy clutch debris due to overheating (blue converter).
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Steel particles or clutch lining material found in fluid filter or on magnet when no internal parts in unit are
worn or damaged — indicates that lining material came from converter.
The torque converter should not be replaced if:
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The fluid has an odor, is discolored, and there is no evidence of metal or clutch facing particles.
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The threads in one or more of the converter bolt holes are damaged.
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Transmission failure did not display evidence of damaged or worn internal parts, steel particles or clutch
plate lining material in unit and inside the fluid filter.
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Vehicle has been exposed to high mileage (only). The exception may be where the torque converter clutch
dampener plate lining has seen excess wear by vehicles operated in heavy and/or constant traffic, such
as taxi, delivery or police use.
Wiring Diagrams and Trouble Diagnosis
NMAT0005
When you read wiring diagrams, refer to the followings:
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GI-30, “HOW TO FOLLOW TROUBLE DIAGNOSES”.
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EL-7, “POWER SUPPLY ROUTING” for power distribution circuit.
When you perform trouble diagnosis, refer to the followings:
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GI-31, “HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES”.
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GI-20, “HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT”.
PRECAUTIONS
Service Notice or Precautions (Cont’d)
AT-6
Special Service Tools
NMAT0006
Tool number
Tool name
Description
ST2505S001
Oil pressure gauge set
1 ST25051001
Oil pressure gauge
2 ST25052000
Hose
3 ST25053000
Joint pipe
4 ST25054000
Adapter
5 ST25055000
Adapter
NT097
Measuring line pressure
ST07870000
Transmission case stand
NT421
Disassembling and assembling A/T
a: 182 mm (7.17 in)
b: 282 mm (11.10 in)
c: 230 mm (9.06 in)
d: 100 mm (3.94 in)
KV31102100
Torque converter one-
way clutch check tool
NT098
Checking one-way clutch in torque converter
ST25850000
Sliding hammer
NT422
Removing oil pump assembly
a: 179 mm (7.05 in)
b: 70 mm (2.76 in)
c: 40 mm (1.57 in) dia.
d: M12 x 1.75P
KV31102400
Clutch spring compres-
sor
NT423
Removing and installing clutch return springs
a: 320 mm (12.60 in)
b: 174 mm (6.85 in)
KV381054S0
(ST33290001)
Puller
NT414
Removing rear oil seal
a: 250 mm (9.84 in)
b: 160 mm (6.30 in)
GI
MA
EM
LC
EC
FE
CL
MT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
PREPARATION
Special Service Tools
AT-7
Tool number
Tool name
Description
ST33200000
Drift
NT091
Installing oil pump housing oil seal Installing rear
oil seal
a: 60 mm (2.36 in) dia.
b: 44.5 mm (1.752 in) dia.
PREPARATION
Special Service Tools (Cont’d)
AT-8
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