Nissan Frontier D22. Instruction — part 60

TROUBLE DIAGNOSIS — INTRODUCTION

AT-209

[RE4R01A]

D

E

F

G

H

I

J

K

L

M

A

B

AT

WORK FLOW CHART

*1:

AT-205

*2:

AT-206

*3:

AT-160

*4:

AT-211

*5:

AT-211

,

AT-214

*6:

AT-216

*7:

AT-189

*8:

AT-185

*9:

AT-198

*10
:

AT-249

*11:

AT-351

*12
:

AT-353

LCIA0289E

AT-210

[RE4R01A]

TROUBLE DIAGNOSIS — INTRODUCTION

*13
:

AT-387

*14
:

AT-230

*15
:

AT-187

*16
:

AT-249

*17
:

AT-351

*18
:

EC-620

(VG33E),

EC-1221

(VG33ER)

TROUBLE DIAGNOSIS — BASIC INSPECTION

AT-211

[RE4R01A]

D

E

F

G

H

I

J

K

L

M

A

B

AT

TROUBLE DIAGNOSIS — BASIC INSPECTION

PFP:00000

A/T Fluid Check

ECS007LW

FLUID LEAKAGE CHECK

1.

Clean area suspected of leaking. — for example, mating surface of converter housing and transmission
case.

2.

Start engine, apply foot brake, place selector lever in D position and wait a few minutes.

3.

Stop engine.

4.

Check for fresh leakage.

FLUID CONDITION CHECK

FLUID LEVEL CHECK

Refer to

MA-37, "Checking A/T Fluid"

.

Stall Test

ECS007LX

STALL TEST PROCEDURE

1.

Check A/T fluid and engine oil levels. If necessary, add fluid or
oil.

2.

Drive vehicle for approx. 10 minutes or until engine oil and ATF
reach operating temperature.

3.

Set parking brake and block wheels.

4.

Install a tachometer where it can be seen by driver during test.

●

It is good practice to put a mark on point of specified
engine rpm on indicator.

Fluid color

Suspected problem

Dark or black with burned odor

Wear of frictional material

Milky pink

Water contamination — Road water
entering through filler tube or breather

Varnished fluid, light to dark brown and
tacky

Oxidation — Over or under filling, —
Overheating

SAT638A

ATF operating temperature

: 50 - 80

°C (122 - 176°F)

SAT647B

SAT513G

AT-212

[RE4R01A]

TROUBLE DIAGNOSIS — BASIC INSPECTION

5.

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

6.

Accelerate to wide open throttle gradually while applying foot
brake.

7.

Quickly note the engine stall revolution and immediately release
throttle.

●

During test, never hold throttle wide open for more than 5
seconds.

8.

Move selector lever to N position.

9.

Cool off ATF.

●

Run engine at idle for at least one minute.

10. Repeat steps 5 through 9 with selector lever in 2, 1 and R posi-

tions.

JUDGEMENT OF STALL TEST

The test result and possible damaged components relating to each result are shown in the illustration. In order
to pinpoint the possible damaged components, follow the WORK FLOW. Refer to

AT-208, "Work Flow"

.

NOTE:
Stall revolution is too high in D or 2 position:

●

Slippage occurs in 1st gear but not in 2nd and 3rd gears. . . Low one-way clutch slippage

●

Slippage occurs at the following gears:
1st through 3rd gears in D position and engine brake functions.
1st and 2nd gears in 2 position and engine brake functions with accelerator pedal released (fully closed
throttle). . . Forward clutch or forward one-way clutch slippage

Stall revolution is too high in R position:

●

Engine brake does not function in 1 position. . . Low & reverse brake slippage

●

Engine brake functions in 1 position. . . Reverse clutch slippage

Stall revolution within specifications:

●

Vehicle does not achieve speed of more than 80 km/h (50 MPH). . . One-way clutch seizure in torque
converter housing

CAUTION:

Be careful since automatic fluid temperature increases abnormally.

●

Slippage occurs in 3rd and 4th gears in D position. . . High clutch slippage

●

Slippage occurs in 2nd and 4th gear in D position. . . Brake band slippage

Stall revolution

VG33E

: 2,450 - 2,650 rpm

VG33ER

: 2,420 - 2,620 rpm

SAT514G

SAT771B