Nissan Frontier D40. Instruction — part 1092
TM-266
< ON-VEHICLE MAINTENANCE >
[5AT: RE5R05A]
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-16, "Removal and Installation"
(QR25DE)
CO-43, "Removal and Installation"
for (VQ40DE).
A/T FLUID COOLER FINAL INSPECTION
After performing all procedures, ensure that all remaining oil is cleaned from all components.
SCIA3834E
SCIA2967E
SCIA5659E
INSPECTIONS BEFORE TROUBLE DIAGNOSIS
TM-267
< ON-VEHICLE MAINTENANCE >
[5AT: RE5R05A]
C
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F
G
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INSPECTIONS BEFORE TROUBLE DIAGNOSIS
Fluid Condition Check
INFOID:0000000005274194
A/T FLUID CHECK
Fluid Leakage and Fluid Level Check
• Inspect for fluid leakage and check the fluid level. Refer to
TM-263, "Changing the A/T Fluid (ATF)"
Fluid Condition Check
Inspect the fluid condition.
Stall Test
INFOID:0000000005274195
STALL TEST
Stall Test Procedure
1.
Inspect the amount of engine oil. Replenish the engine oil if necessary.
2.
Drive for about 10 minutes to warm up the vehicle so that the A/
T fluid temperature is 50 to 80
°
C (122 to 176
°
F). Inspect the
amount of ATF. Replenish if necessary.
3.
Securely engage the parking brake so that the tires do not turn.
Fluid condition
Conceivable Cause
Required Operation
Varnished (viscous
varnish state)
Clutch, brake
scorched
Replace the ATF and check the A/T
main unit and the vehicle for mal-
functions (wire harnesses, cooler
pipes, etc.)
Milky white or
cloudy
Water in the fluid
Replace the ATF and check for plac-
es where water is getting in.
Large amount of
metal powder mixed
in
Unusual wear of
sliding parts within
A/T
Replace the ATF and check for im-
proper operation of the A/T.
SAT638A
SAT647B
SCIA7463E
TM-268
< ON-VEHICLE MAINTENANCE >
[5AT: RE5R05A]
INSPECTIONS BEFORE TROUBLE DIAGNOSIS
4.
Engine start, apply foot brake, and place selector lever in “D”
position.
5.
While holding down the foot brake, gradually press down the
accelerator pedal.
6.
Quickly read off the stall speed, then quickly remove your foot
from the accelerator pedal.
CAUTION:
Do not hold down the accelerator pedal for more than 5 sec-
onds during this test.
7.
Move the selector lever to the “N” position.
8.
Cool down the ATF.
CAUTION:
Run the engine at idle for at least one minute.
9.
Repeat steps 5 through 8 with selector lever in “R” position.
Judgment of Stall Test
O: Stall speed within standard value position
H: Stall speed higher than standard value
L: Stall speed lower than standard value
Stall test standard value position
Line Pressure Test
INFOID:0000000005274196
LINE PRESSURE TEST
Line Pressure Test Port
Line Pressure Test Procedure
1.
Inspect the amount of engine oil and replenish if necessary.
Stall speed:
SAT514G
Selector lever position
Expected problem location
D
R
Stall rotation
H
O
• Forward brake
• Forward one-way clutch
• 1st one-way clutch
• 3rd one-way clutch
O
H
• Reverse brake
L
L
• Engine and torque converter one-way clutch
H
H
• Line pressure low
Does not shift-up D position 1
→
2
Slipping in 2GR, 3GR, 4GR
Direct clutch slippage
Does not shift-up D position 2
→
3
Slipping in 3GR, 4GR, 5GR
High and low reverse clutch slippage
Does not shift-up D position 3
→
4
Slipping in 4GR, 5GR
Input clutch slippage
Does not shift-up D position 4
→
5
Slipping in 5GR
Front brake slippage
SCIA2187E
INSPECTIONS BEFORE TROUBLE DIAGNOSIS
TM-269
< ON-VEHICLE MAINTENANCE >
[5AT: RE5R05A]
C
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TM
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2.
Drive the car for about 10 minutes to warm it up so that the ATF reaches in range of 50 to 80
°
C (122 to
176
°
F), then inspect the amount of ATF and replenish if necessary.
NOTE:
The automatic fluid temperature rises in range of 50 to 80
°
C (122 to 176
°
F) during 10 minutes of
driving.
3.
After warming up remove the oil pressure detection plug and
install the oil pressure gauge [ST2505S001(J-34301-C)].
CAUTION:
When using the oil pressure gauge, be sure to use the O-
ring attached to the oil pressure detection plug.
4.
Securely engage the parking brake so that the tires do not turn.
5.
Start the engine, then measure the line pressure at both idle and
the stall speed.
CAUTION:
• Keep the brake pedal pressed all the way down during
measurement.
• When measuring the line pressure at the stall speed, refer
to "STALL TEST".
6.
After the measurements are complete, install the oil pressure
detection plug and tighten to the regulation torque below.
CAUTION:
• Do not reuse the O-ring.
• Apply ATF to O-ring.
Line Pressure
Judgment of Line Pressure Test
SCIA5309E
SCIA7463E
:7.3 N·m (0.74 kg-m, 65 in-lb)
SAT493G
Engine speed
Line pressure [kPa (kg/cm
2
, psi)]
“R” position
“D” position
At idle speed
At stall speed
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