1995 TOYOTA SUPRA torque

(c) With the torque converter clutch standing on its side the
clutch should lock when turned counterclockwise, and rotate
freely and smoothly clockwise.
If necessary, clean the converter clutch and retest the clutch.
Replace the converter if the clutch still fails the test.
2. MEASURE DRIVE PLATE RUNOUT AND INSPECT RING
GEAR
Set up a dial indicator and measure the drive plate runout.
Maximum runout:
0.20 mm (0.0079 in.)
If runout exceeds 0.20 mm (0.0079 in.) or if the ring gear is
damaged, replace the drive plate. If installing a new drive
plate, note the orientation of spacers and tighten the bolts.
Torque: 74 NVm (750 kgfVcm, 54 ftVlbf)
3. MEASURE TORQUE CONVERTER CLUTCH SLEEVE
RUNOUT
(a) Temporarily mount the torque converter clutch to the drive
plate. Set up a dial indicator.
Maximum runout:
0.30 mm (0.0118 in.)
If runout exceeds 0.30 mm (0.0118 in.), try to correct by reori-
enting the installation of the converter clutch. If excessive
runout cannot be corrected, replace the torque converter
clutch.
HINT: Mark the position of the converter clutch to ensure cor-
rect installation.
(b) Remove the torque converter clutch.
TORQUE CONVERTER CLUTCH
INSTALLATION
1. INSTALL TORQUE CONVERTER CLUTCH
TRANSMISSION
2. CHECK TORQUE CONVERTER CLUTCH INSTALLATION
Using feeler gauge and a straight edge, measure between
the installed surface of the transmission and the straight
edge.
Clearance:
Less than 0.1 mm (0.004 in.)
± AT340E (2JZ±GE) AUTOMATIC TRANSMISSIONASSEMBLY REMOVAL AND INSTALLATIONAT1±27

PROBLEM SYMPTOM CONFIRMATION
Taking into consideration the results of the customer problem analysis, try to reproduce the symptoms of
the trouble. If the problem is that the transmission does not up±shift, does not down±shift, or the shift point
is too high or too low, conduct the following road test to confirm the automatic shift schedule and simulate
the problem symptoms.
ROAD TEST
NOTICE: Do the test at normal A/T fluid operating temp.
50±80°C (122 ± 176°F).
1. D POSITION TEST (NORM PATTERN)
Shift into the D position and keep the accelerator pedal
constant at the full throttle valve opening position, and check
the following points:
(a) Check up±shift operation.
Check that 1±2, 2±3 and 3±O/D up±shift takes place, at the
shift point shown in the automatic shift schedule.
(See page AT1±96)
HINT:
(1) O/D Gear Up±shift Prohibition Control.
w Coolant temp. is 60°C (140°F) or less.
w If there is a 10 km/h (6 mph) difference between the set
cruise control speed and
wvehicle speed.
wO/D main switch is pushed ON.
w(During O/D OFF, indicator light lights up.)
(2) O/D Gear Lock±up Prohibition Control.
w Brake pedal is depressed.
w Coolant temp. is 60°C (140°F) or less.
(b) Check for shift shock and slip.
Check for shock and slip at the 1±2, 2±3 and 3±O/ D up±
shifts.
(c) Check for abnormal noise and vibration.
Run at the D position lock±up or O/D gear and check for ab-
normal noise and vibration.
HINT: The check for the cause of abnormal noise and vibra-
tion must be performed very thoroughly as it could also be
due to loss of balance in the torque converter clutch, etc.
± AT340E (2JZ±GE) AUTOMATIC TRANSMISSIONTROUBLESHOOTINGAT1±37

(c) Check for abnormal noise and vibration.
Run at the D position lock±up or O/D gear and check for ab-
normal noise and vibration.
HINT: The check for the cause of abnormal noise and vibra-
tion must be made with extreme care as it could also be due
to loss of balance in the propeller shaft, differential, torque
converter clutch, etc.
(d) Check kick±down operation.
While running in the D position, 2nd, 3rd and O/D gears,
check to see that the possible kick±down vehicle speed limits
for 3 " 2 and O/D " 3 kick±downs conform to those indi-
cated on the automatic shift schedule.
(See page AT1±96)
(e) Check for abnormal shock slip at kick±down.
(f) Check the lock±up mechanism.
(1) Drive in D position, O/D gear, at a steady speed (lock±up
ON) of about 172 km/h (107 mph).
(2) Lightly depress the accelerator pedal and check that the
engine RPM does not change abruptly.
If there is big jump in the engine RPM there is no lock ±up.
3. 2 POSITION TEST (NORM PATTERN)
Shift into the 2 position and, while driving with the accelerator
pedal held constantly at the full throttle valve opening posi-
tion, check on the following points:
(a) Check up±shift operation.
Check to see that the 1 " 2 up±shift takes place and that the
shift point conforms to the automatic shift schedule.
(See page AT1±96)
HINT: There is no O/D up±shift and lock±up in the 2 position.
(b) Check engine braking.
While running in the 2 position and 2nd gear, release the ac-
celerator pedal and check the engine braking effect.
± AT340E (2JZ±GE) AUTOMATIC TRANSMISSIONTROUBLESHOOTINGAT1±39

5. INSPECT AND ADJUST THROTTLE CABLE
(a) Check that the throttle valve is fully closed.
(b) Check that the inner cable is not slack.
(c) Measure the distance between the outer cable end and
stopper on the cable.
Standard distance:
0±1 mm (0±0.04 in.)
If the distance is not standard, adjust the cable by the adjust-
ing nuts.
6. INSPECT AND ADJUST SHIFT LEVER POSITION
When shifting the shift lever from the N position to other posi-
tions, check that the lever can be shifted smoothly and accu-
rately to each position and that the position indicator correctly
indicates the position.
If the indicator is not aligned with the correct position, carry
out the following adjustment procedures:
(a) Loosen the nut on the control shaft lever.
(b) Push the control shaft lever fully rearward.
(c) Return the control shaft lever 2 notches to N position.
(d) Set the shift lever to N position.
(e) While holding the shift lever lightly toward the R position side,
tighten the shift lever nut.
(f) Start the engine and make sure that the vehicle moves
forward when shifting the lever from the N to D position and
reverses when shifting it to the R position.
7. INSPECT AND ADJUST PARK/NEUTRAL POSITION
SWITCH
Check that the engine can be started with the shift lever only
in the N or P position, but not in other positions.
If not as started above, carry out these adjustment proce-
dures:
(a) Loosen the park/neutral position switch bolt and set the shift
lever to the N position.
(b) Align the groove and neutral basic line.
(c) Hold in position and tighten the bolt.
Torque: 13 NVm (130 kgfVcm, 9 ftVlbf)
For continuity inspection of the park/neutral position switch,
see page AT1±81.
8. INSPECT IDLE SPEED
Idle speed:
700 + 50 rpm
(In N position and air conditioner OFF)
± AT340E (2JZ±GE) AUTOMATIC TRANSMISSIONTROUBLESHOOTINGAT1±43

EVALUATION
ProblemPossible cause Problem Possible cause
 
 
 
 
 
(a) Stall speed low in D and R positions.
 
 
 
 
 
wEngine output may be insufficient.
wStator one±way clutch is operating properly
HINT:
If more than 600 rpm below the specified value, the
torque converter clutch could be faulty.
 
 (b) Stall speed high in Dposition
wLine pressure too low
wForward clutch slipping
 
 
(b) Stall speed high in D position.Forward clutch sli ing
wNo.2 one±way clutch not operating properly
wO/D one±way clutch not operating properly
 
 
(c) Stall speed high in Rposition
wLine pressure too low
wDirect clutch slipping
 
 
(c) Stall speed high in R position.Direct clutch sli ing
wFirst and reverse brake slipping
wO/D clutch one±way clutch not operating properly
 
 (d) Stall speed high in D and Rpositions
wLine pressure too low
wImproper fluid level
 
(d) Stall speed high in D and R positions.wImproper fluid level
wO/D one±way clutch not operating properly
± AT340E (2JZ±GE) AUTOMATIC TRANSMISSIONTROUBLESHOOTINGAT1±45

Chapter 3. Off±Vehicle Repair
(: A340E, A340F, A340H AUTOMATIC TRANSMISSION Repair Manual Pub. No. RM391U)
AT1±26
See Page
Suspect Area
Symptom
Vehicle does not move in any forward position and reverse position
Vehicle does not move in R position
No up±shift
No down±shift
Harsh engagement
Slip or Shudder
1st " 2nd
2nd " 3rd
3rd " O/D
O/D " 3rd
L position
2nd " 1st
D, 2 and L positions
D and 2 positions
2 position
Vehicle does not
move in:
No lock±up or No lock±up off
N " D
N " R
2nd " 3rd
3rd " O/D
Lock±up
Forward & Reverse (After warm±up)
Forward & Reverse (Just after engine starts)
R position
No engine braking
2nd
1st
3rd
2nd
1st
1st ~ 3rd
O/D
O/D
All position
Other than O/D
1st and 2nd
1st and R position
R position
Other than 2ndPoor acceleration
Engine stalls when starting off or stopping
O/D one±wayclutch (F
o)
O/D brake (B
o)
Torque converter
clutchO/D Planetary gear
unitO/D
direct clutch
(co)
1st reverse
brake (B
3)
AT1±62± AT340E (2JZ±GE) AUTOMATIC TRANSMISSIONTROUBLESHOOTING

SERVICE SPECIFICATIONS
SERVICE DATA
 Line pressure (wheel locked) Engine idling   
 D position 363±422 kPa 3.7±4.3 kgf/cm2 53±61 psi
 R position 500±598 kPa 5.1±6.1 kgf/cm2 73±88 psi
 AT stall (Throttle valve fully opened) 
 D position 902±1,147 kPa 9.2±11.7 kgf/cm2 131±166 psi
 R position 1,236±1,589 kPa 12.6±16.2 kgf/cm2 179±230 psi
 Engine stall revolution (D and R position) 2,200+150 rpm
 
 
Time lag N " D position
N " R position 
 
Less than 1.2 seconds
Less than 1.5 seconds
 
 
Engine idle speed
(In N position and air conditioner OFF) 
 
700+50 rpm 
 
 Throttle cable adjustment Between boot and face and inner cable stopper
 (Throttle valve fully closed) 0±1 mm 0±0.04 in.
 Drive plate runout Max 0.20 mm 0.0079 in.
 Torque converter clutch runout Max 0.30 mm 0.0118 in.
SHIFT POINT
NORM Mode
 Shift Position Shifting Point Vehicle speed km/h (mph)
 
 
 
 
 
 
 
D
Throttle valve fully opened 1"2
2"3
3"O/D
O/D"3
3"2
2"1
Throttle valve fully closed 3"O/D
O/D"353±62 (33±39)
104±112 (65±70)
163±175 (101±109)
157±169 (98±105)
98±105 (61±65)
42±48 (26±30)
34±39 (21±24)
20±25 (12±16)
 
 
 
2
Throttle valve fully opened 1"2
* 3"2
2"153±62 (33±39)
121±132 (75±82)
42±48 (26±330)
 LThrottle valve fully opened * 2"148±53 (30±33)
MANU Mode
 Shift Position Shifting Point Vehicle speed km/h (mph)
 
 
 
 
 
D
Throttle valve fully opened 2"3
3"O/D
O/D"3
3"2
Throttle valve fully closed 3"O/D
O/D"3104±112 (65±70)
163±175 (101±109)
157±169 (98±109)
98±105 (61±65)
163±175 (101±109)
20±25 (12±16)
 2Throttle valve fully opened * 3"2121±132 (75±82) 
 LThrottle valve fully opened * 2"148±53 (30±33)
AT1±96± AT340E (2JZ±GE) AUTOMATIC TRANSMISSIONSERVICE SPECIFICATIONS

TORQUE SPECIFICATIONS
 Part tightened NVm kgfVcm ftVlbf
 Engine block X Transmission 14 mm 37 380 27 
 17 mm
 
 72
 
 730
 
 53
 Rear mounting X Body 25 260 19
 Extension housing X Transmission case 36 370 27
 Valve body X Transmission case 10 100 7 
 Oil strainer
 
 10
 
 100
 
 7
 Oil pan 7.4 75 65 in.Vlbf
 No.1 vehicle speed sensor 16 160 12
 No.2 vehicle speed sensor 5.4 55 48 in.Vlbf 
 Solenoid wiring stopper plate
 
 5.4
 
 55
 
 48 in.Vlbf
 Rear center floor crossmember brace X Body 13 130 9
 Propeller shaft X Differential 79 805 58
 Manual shift linkage X Control shaft lever 13 130 9 Center support bearing X Body 49 500 36 
 Throttle cable X Transmission case
 
 5.4
 
 55
 
 48 in.Vlbf
 Cooler pipe union nut 34 350 25
 Drive plate X Crankshaft 74 750 54
 Torque converter clutch X Drive plate 33 340 25 
 Control shaft lever X Park/Neutral position switch
 
 16
 
 160
 
 12
 A/T fluid temp. sensor 15 150 11
 Drain plug 20 205 15
 Solenoid valve X Valve body 10 100 7 
 Parking lock pawl bracket
 
 7.4
 
 75
 
 65 in.Vlbf
 Transmission mounting bracket X Extension housing 25 250 18
 Heat insulator X Body 5.4 55 48 in.Vlbf
 Starter 37 380 27
AT1±98± AT340E (2JZ±GE) AUTOMATIC TRANSMISSIONSERVICE SPECIFICATIONS