Infiniti EX35. Manual - part 1439

TM-144

< ON-VEHICLE MAINTENANCE >

[5AT: RE5R05A]

A/T FLUID COOLER

DIAGNOSIS PROCEDURE

NOTE:
Insufficient cleaning of the cooler inlet hose exterior may lead to inaccurate debris identification.

1.

Position an oil pan under the A/T inlet and outlet cooler hoses.

2.

Clean the exterior and tip of the cooler inlet hose.

3.

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 Transmission Cooler Cleaner only with adequate

ventilation.

• Avoid contact with eyes and skin.
• Do not breath vapors or spray mist.

4.

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 ATF flows out of the cooler inlet hose for 5 seconds.

5.

Tie a common white, basket-type coffee filter to the end of the
cooler inlet hose.

6.

Insert the tip of an air gun into the end of the cooler outlet hose.

7.

Wrap a shop rag around the air gun tip and end of cooler outlet
hose.

8.

Blow compressed air regulated to 5 to 9 kg/cm

2

 (71 to 128 psi)

through the cooler outlet hose to force any remaining ATF into
the coffee filter.

9.

Remove the coffee filter from the end of the cooler inlet hose.

10. Perform “INSPECTION PROCEDURE”.

INSPECTION PROCEDURE

1.

Inspect the coffee filter for debris.

a.

If small metal debris less than 1 mm (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.

JPDIA0712GB

JPDIA0714GB

JPDIA0715GB

SCIA2967E

A/T FLUID COOLER

TM-145

< ON-VEHICLE MAINTENANCE >

[5AT: RE5R05A]

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b.

If one or more pieces of debris are found that are over 1 mm
(0.040 in) in size and/or peeled clutch facing material is found in
the coffee filter, the A/T fluid cooler is not serviceable. The A/T
fluid cooler/radiator must be replaced and the inspection proce-
dure is ended. Refer to 

CO-13, "Exploded View"

.

Inspection

INFOID:0000000003130589

After performing all procedures, ensure that all remaining oil is cleaned from all components.

SCIA7031E

TM-146

< ON-VEHICLE MAINTENANCE >

[5AT: RE5R05A]

STALL TEST

STALL TEST

Inspection and Judgment

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INSPECTION

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.

4.

Start the engine, apply foot brake, and place selector lever in “D” position.

5.

Gradually press down the accelerator pedal while holding down the foot brake.

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 seconds during this test.

7.

Shift the selector lever to the “N” position.

8.

Cool down the ATF.

CAUTION:

Run the engine at idle for at least 1 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

Stall speed

: Refer to 

TM-269, "Stall Speed"

.

Selector lever position

Possible location of malfunction

“D” and “M”

“R”

Stall speed

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” or “M” position 1 

→

 2

Slipping in 2nd, 3rd or 4th gear

Direct clutch slippage

Does not shift-up “D” or “M” position 2 

→

 3

Slipping in 3rd, 4th or 5th gear

High and low reverse clutch slippage

Does not shift-up “D” or “M” position 3 

→

 4

Slipping in 4th or 5th gear

Input clutch slippage

Does not shift-up “D” or “M” position 4 

→

 5

Slipping in 5th gear

Front brake slippage

LINE PRESSURE TEST

TM-147

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[5AT: RE5R05A]

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LINE PRESSURE TEST

Inspection and Judgment

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INSPECTION

Line Pressure Test Port

Line Pressure Test Procedure

1.

Inspect the amount of engine oil and replenish if necessary.

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 A/T fluid temperature rises in range of 50 to 80

°

C (122 to 176

°

F) during 10 minutes of driving.

3.

Remove the front propeller shaft from vehicle (with AWD models). Refer to 

DLN-75

.

4.

After warming up remove the oil pressure detection plug and
install the oil pressure gauge [SST: 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.

5.

Securely engage the parking brake so that the tires do not turn.

6.

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 

TM-146, "Inspection and Judgment"

. 

7.

Install the oil pressure detection plug and tighten to the specified torque after the measurements are com-
plete. Refer to 

TM-198, "Exploded View"

.

CAUTION:

• Do not reuse O-ring.
• Apply ATF to O-ring.

JUDGMENT OF LINE PRESSURE TEST

SCIA2187E

LINE PRESSURE

: Refer to 

TM-270, "Line Pressure"

.

SCIA5309E