1995 NISSAN ALMERA N15 Service Manual

Fluidleakage TROUBLE
DIAGNOSES
Preliminary Check(PriortoRoad Testing)
AIT FLUID CHECK
Fluid leakage check

1. Clean areasuspected ofleaking, -for example, mating
surface ofconverter housingandtransmission case.
2. Start engine, applyfootbrake, placeselector leverin"0"
position andwait afew minutes.
3. Stop engine.
4. Check forfresh leakage.

SAT288G
Fluidcondition check
Fluid levelcheck -Refer toMA section (CHASSIS AND
BODY MAINTENANCE).
Fluid
color
Oark orblack withburned odor
Milky pink
Varnished fluid,lighttodark brown
and tacky Suspected
problem
Wear offrictional material
Water contamination
- Road water entering through
filler tubeorbreather
Oxidation
- Over orunder filling
- Overheating

•

Road Testing

Perform roadtests using "Symptom" chart.Refertopage

AT-20.

"P"
POSITION

1. Place selector leverin"P" position andstart engine. Stop
engine andrepeat theprocedure inall positions, including
neutral position.
2. Stop vehicle onaslight upgrade andplace selector leverin
"P" position. Releaseparkingbraketomake surevehicle
remains locked.

"R"
POSITION

1. Manually moveselector leverfrom"P"to"R", andnote
shift quality.
2. Drive vehicle inreverse longenough todetect slippage or
other abnormalities.

"N"
POSITION

1. Manually moveselector leverfrom"R"and"0"to"N" and
note shift quality.
2. Release parkingbrakewithselector leverin"N" position.
Lightly depress accelerator pedaltomake surevehicle
does notmove. (When vehicle isnew orsoon afterclutches
have been replaced, vehiclemaymove slightly. Thisisnot
a problem.)

AT-17

SAT497GTROUBLE
DIAGNOSES
Road Testing (Cont'd)

"0"
POSITION

1. Manually moveselector leverfrom"N"to"D" position, and
note shiftquality.
2. Using theshift schedule asareference, drivevehicle in"D"
position. Record,onsymptom chart,respective vehicle
speeds atwhich up-shifting anddown-shifting occur.These
speeds aretobe read atthree different throttlepositions
(light, halfandfull), respectively. Alsodetermine thetiming
at which shocks areencountered duringshifting andwhich
clutches areengaged.

SAT612GA
3.Determine whetherlock-upproperly occurswhiledriving
vehicle inproper gearposition andatproper vehicle speed.
4. Check todetermine ifshifting tooverdrive gearcannot be
made whileODcontrol switchis"OFF".
5. Drive vehicle in"D
3"
position athalf tolight throttle posi-
tion. Keep driving at60 to70 km/h (34to43 MPH). FUlly
depress accelerator pedaltomake suretransaxle down-
shifts from3rdto2nd gear.
6. Drive vehicle in"D
2"
position athalf tolight throttle posi-
tion. Keep driving at25 to35 km/h (16to22 MPH). Fully
depress accelerator pedaltomake suretransaxle down-
shifts from2ndto1st gear.

"2"
POSITION

1. Shift to"2" position andmake surevehicle startsin1st
gear.
2. Increase vehiclespeedtomake suretransaxle upshiftsfrom
1st to2nd gear.
3. Further increase vehiclespeed.Makesuretransaxle does
not upshift to3rd gear.
4. Drive vehicle in"2
2"
position athalf tolight throttle position.
Keep driving at25 to35 km/h (16to22 MPH). Fullydepress
accelerator pedaltomake suretransaxle downshifts from
2nd to1st gear.
5. Allow vehicle torun idle while in"2" position tomake sure
that transaxle downshifts to1st gear.
6. Move selector leverto"D" position andallow vehicle to
operate at30 to40 km/h (19to25 MPH). Then,shiftto"2"
position tomake suretransaxle downshifts to2nd gear.

"1"
POSITION

1. Place selector leverin"1" position andaccelerate vehicle.
Make suretransaxle doesnotshift from 1stto2nd gear
although vehiclespeedincreases.
2. Drive vehicle in"1" position. Releaseaccelerator pedalto
make surethatengine compression actsasabrake.
3. Place selector leverin"D" or"2" position andallow vehi-
cle torun at15 to25 km/h (9to 16 MPH). Thenmove selec-
tor lever to"1" position tomake suretransaxle downshifts
to 1st gear.

AT-18

TROUBLEDIAGNOSES
Road Testing (Cont'd)
SHIFT SCHEDULE

Drive thevehicle forapprox. 10minutes. Measuretheoiltem-
perature. Whentheoiltemperature becomesbetween50and
80°C (122and176°F), carryoutthis check.

VEHICLE SPEEDWHENSHIFTING GEARS

Model 34X68

Throttle posi- Vehicle
speedkm/h(MPH)
tion
0,~O
2
O
2
->
0
3
0
3
->
0
4
0
4
~
0
3

0
3
->
O
2

O
2
->
0,
1
2
~
1,

Full throttle
48
-56 88
-96 133
-141
80-88 37-45 45-53
(30 -35) (55-60)
-

(83-88)
(50-55) (23-28) (28
-33)

Half throttle
31
-39 54
-62 102-110
75-83 44
-52
7-15 45
-53
(19 -24) (34
-39)
(63-68) (47
-52)
(27-32) (4
-9)
(28-33)
Model 34X69and34X70

Throttle pas
i-
Vehicle
speedkm/h(MPH)
tion
0,~O
2
O
2~
0
3
0
3
->
0
4
0
4~
0
3
0
3
->
O
2
O
2~
0,
1
2~
1,

Full throttle
51
-60 94
-102 136-144
85-93 40
-48
48-56
(32 -37) (58-63)
-

(85-89)
(53-58) (25
-30) (30-35)

Half throttle
30
-38 52
-60 97-105 67-75 42-50 8-16
48-56
(19 -24) (32-37) (60-65) (42-47) (26-31) (5-10) (30-35)

Model 34X80

Throttle posi- Vehicle
speedkm/h(MPH)
tion
0,~O
2
O
2

->
0
3
0
3~
0
4
0
4
->
0
3
0
3
~
O
2

O
2
->
0,

1"
->
1,

Full throttle
52
-60 100-108 145
-153
90-98 40
-48 49-57
(32 -37) (62-67)
-

(90-95) (56-61) (25-30) (30
-35)

Half throttle
30
-38 53-61 103
-111
69-77 42
-50 8-16 49-57
(19 -24) (33-38) (64-69) (43-48) (26-31) (5-10) (30-35)

Model 34X81

Throttle posi- Vehicle
speedkm/h(MPH)
tion
0,~O
2
O
2
->
0
3
0
3
~
0
4
0
4
->
0
3

0
3
->
O
2
O
2
~
0,
1
2~
1,

Full throttle
58
-66 107
-115 160
-168
96-104 39
-47 48-56
(36 -41) (66
-71)
-

(99-104) (60-65) (24
-29) (30
-35)
33 -41 57-65 105
-113 69-77 45-53 8-16 48-56

Half throttle

(21-25) (35-40)
(65-70) (43
-48) (28-33) (5-10) (30
-35)
AT-19
•

TROUBLEDIAGNOSES
Road Testing (Cont'd)
ROAD TESTSYMPTOM CHART
~
ON
VEHICLE

~
Numbers arearranged inorder ofprobability.
Perform inspections startingwithnumber one
and work up.
Circled numbers indicatethatthetransaxle
Q)Q)
must beremoved fromthevehicle.
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N
0

Sharp shocks inshifting from"N"to"D" position
2
53

4
7

When shifting from1stto2nd or
24
3
6

2nd to3rd
When shifting from3rdto4th
24
3
5

When shifting fromDto 2and 1
Shift shocks
position.
When ODswitch isset from 2
43
5

"ON" to"OFF"
When shifting from2ndto1st in
24
3
5

"1" position
When shifting from1stto2nd
24 3
5

Shift slippage whenupshifting
Whenshifting from2ndto3rd
24
3
6

When shifting from3rdto4th
24 3
5

When shifting from4thto2nd
2
5
3
6

Shift slippage withaccelerator
Whenshifting from4thto3rd
24
3
6

pedal depressed
Whenshifting from4thto1st
and shifting from3rdto1st 2

5
3

6

When vehicle starts
243

6

Poor power/acceleration
Whenupshifting
24
3
7

When shifting from"D"to"2"
24
3
5

and" 1"position
No engine braking When
ODswitch isset from
24
3
7

"ON" to"OFF"
When shifting from2ndto1st in

2
4
3
5

"1" position
Too Iowa gearchange point
from 2ndto3rd and from 3rdto
32

6

2nd.
Too high agear change point
from 2ndto3rd and from 3rdto
32
6

Shift quality
2nd.
Too Iowa gearchange point

3
2

6

from 2ndto1st in"1" position.
Too high agear change point

3
2

6

from 2ndto1st in"1" position.

AT-20

TROUBLEDIAGNOSES
Road Testing (Cont'd)

...
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AT-21
•