2007 TOYOTA SIENNA differential

SS–24SERVICE SPECIFICATIONS – U151E AUTOMATIC TRANSAXLE
SS
U151E AUTOMATIC TRANSAXLE
SERVICE DATA
Line pressure (Wheel locked)
Engine
idling
D position
370 to 410 kPa (3.8 to 4.2 kgf*cm
2, 54 to 60 psi)
R position
670 to 740 kPa (6.8 to 7.5 kgf*cm
2, 97 to 106 psi)
AT s t a l l
(Throttle
valve fully
opened)
D position
931 to 1,031 kPa (9.5 to 10.5 kgf*cm
2, 135 to 150 psi)
R position
1,768 to 1,968 kPa (18.0 to 20 kgf*cm
2, 256 to 285 psi)
Engine stall revolution D and R
positions2,300 +- 150 rpm
Time lag N
D
positionLess than 1.2 seconds
N
R
positionLess than 1.5 seconds
Engine idle speed (A/C OFF) N position 650 +- 50 rpm
Drive plate runout Max. 0.20 mm (0.0079 in.)
Torque converter runout Max. 0.30 mm (0.0118 in.)
Differential oil seal drive in depth LH side 0 +- 0.5 mm (0 +- 0.020 in.)
RH side 0 +- 0.5 mm (0 +- 0.020 in.)
TIRE: 215/65R16
Shift schedule
Throttle valve fully open
(Normal)
1
2 47 to 54 km/h (29 to 34 mph)
2
3 94 to 100 km/h (58 to 62 mph)
3
4 152 to 163 km/h (94 to 101 mph)
4
5 227 to 238 km/h (141 to 148 mph)
5
4 218 to 229 km/h (135 to 142 mph)
4
3 146 to 157 km/h (91 to 98 mph)
3
2 89 to 95 km/h (55 to 59 mph)
2
1 37 to 43 km/h (23 to 27 mph)
Throttle valve fully closed
(Normal)4
5 66 to 72 km/h (41 to 45 mph)
5
4 38 to 44 km/h (24 to 27 mph)
Throttle valve fully open
(Cold)
1
2 29 to 36 km/h (18 to 22 mph)
2
3 47 to 53 km/h (29 to 33 mph)
3
4 77 to 83 km/h (48 to 52 mph)
4
3 72 to 78 km/h (45 to 48 mph)
3
2 42 to 48 km/h (26 to 30 mph)
2
1 23 to 29 km/h (14 to 18 mph)
Throttle valve fully open
(Failure)
1
3 29 to 36 km/h (18 to 22 mph)
3
4 77 to 83 km/h (48 to 52 mph)
4
3 72 to 78 km/h (45 to 48 mph)
3
1 23 to 29 km/h (14 to 18 mph)

SS–28SERVICE SPECIFICATIONS – U151E AUTOMATIC TRANSAXLE
SS
Flange thickness Mark
1 1.8 mm (0.071 in.)
2 1.9 mm (0.075 in.)
3 2.0 mm (0.079 in.)
4 2.1 mm (0.083 in.)
5 2.2 mm (0.087 in.)
6 2.3 mm (0.091 in.)
7 2.4 mm (0.094 in.)
8 2.5 mm (0.098 in.)
U/D planetary gear
Preload (at 60 rpm) 0.50 to 1.42 N*m (5.1 to 14.5 kgf*cm, 0.06 to 0.17 in.*lbf)
Front planetary gear
Turning torque (at 60 rpm) New
Bearing0.51 to 1.02 N*m (5.1 to 10.0 kgf*cm, 4.4 to 8.7 in.*lbf)
Used
Bearing0.26 to 0.51 N*m (2.7 to 5.2 kgf*cm, 2.3 to 4.5 in.*lbf)
Input shaft
End play0.262 to 1.249 mm (0.0103 to 0.0492 in.)
Transaxle rear cover
Bearing press fit depth 20.55 to 21.25 mm (0.8091 to 0.8366 in.)
Transmission valve body
Valve body installation bolt length A 41 mm (1.614 in.)
B 57 mm (2.244 in.)
C 25 mm (0.984 in.)
Accumulator
Spring Free length/Outer diameter Color
B
3Inner 62.00 (2.4409) / 15.50 (0.610) Purple
Outer 74.23 (2.9224) / 16.50 (0.649) Purple
C
260.96 (2.3999) / 14.10 (0.555) Yellow
C
372.20 (2.8425) / 19.0 (0.748) Colorless
Front differential (U151E)
Backlash0.05 to 0.20 mm (0.0020 to 0.0079 in.)
Thrust washer thickness Mark
- 1.625 mm (0.0640 in.)
- 1.725 mm (0.0679 in.)
- 1.825 mm (0.0719 in.)
Preload (at 60 rpm) New
bearing0.20 to 0.69 N*m (2.0 to 7.0 kgf*cm, 1.8 to 6.1 in.*lbf)
Used
bearing0.10 to 0.35 N*m (1.0 to 3.6 kgf*cm, 0.9 to 3.1 in.*lbf) 1st & reverse brake

SERVICE SPECIFICATIONS – U151E AUTOMATIC TRANSAXLESS–29
SS
Flange thickness Mark
0 2.00 mm (0.0787 in.)
1 2.05 mm (0.0807 in.)
2 2.10 mm (0.0827 in.)
3 2.15 mm (0.0846 in.)
4 2.20 mm (0.0866 in.)
5 2.25 mm (0.0886 in.)
6 2.30 mm (0.0906 in.)
7 2.35 mm (0.0925 in.)
8 2.40 mm (0.0945 in.)
9 2.45 mm (0.0965 in.)
A 2.50 mm (0.0984 in.)
B 2.55 mm (0.1004 in.)
C 2.60 mm (0.1024 in.)
D 2.65 mm (0.1043 in.)
E 2.70 mm (0.1063 in.)
F 2.75 mm (0.1083 in.)
G 2.80 mm (0.1102 in.)
H 2.85 mm (0.1122 in.) Front differential (U151E)

SERVICE SPECIFICATIONS – U151F AUTOMATIC TRANSAXLESS–31
SS
U151F AUTOMATIC TRANSAXLE
SERVICE DATA
Line pressure (Wheel locked)
Engine
idling
D position
370 to 410 kPa (3.8 to 4.2 kgf*cm
2, 54 to 60 psi)
R position
670 to 740 kPa (6.8 to 7.5 kgf*cm
2, 97 to 106 psi)
AT s t a l l
(Throttle
valve fully
opened)
D position
931 to 1,031 kPa (9.5 to 10.5 kgf*cm
2, 135 to 150 psi)
R position
1,768 to 1,968 kPa (18.0 to 20 kgf*cm
2, 256 to 285 psi)
Engine stall revolution D and R
positions2,550 +- 150 rpm
Time lag N
D
positionLess than 1.2 seconds
N
R
positionLess than 1.5 seconds
Engine idle speed (A/C OFF) N position 650 +- 50 rpm
Drive plate runout Max. 0.20 mm (0.0079 in.)
Torque converter runout Max. 0.30 mm (0.0118 in.)
Differential oil seal drive in depth LH side 0 +- 0.5 mm (0 +- 0.020 in.)
RH side 6.0 +- 0.236 mm (0 +- 0.020 in.)
Shift schedule
Throttle valve fully open
(Normal)
1
2 45 to 52 km/h (28 to 32 mph)
2
3 90 to 97 km/h (56 to 60 mph)
3
4 146 to 157 km/h (91 to 98 mph)
4
5 218 to 229 km/h (135 to 142 mph)
5
4 209 to 221 km/h (130 to 137 mph)
4
3 141 to 151 km/h (88 to 94 mph)
3
2 85 to 91 km/h (52 to 57 mph)
2
1 36 to 41 km/h (22 to 25 mph)
Throttle valve fully closed
(Normal)4
5 63 to 69 km/h (39 to 43 mph)
5
4 37 to 42 km/h (23 to 26 mph)
Throttle valve fully open
(Cold)
1
2 28 to 34 km/h (17 to 21 mph)
2
3 45 to 51 km/h (28 to 32 mph)
4
3 74 to 80 km/h (46 to 50 mph)
4
3 69 to 75 km/h (43 to 47 mph)
3
2 41 to 46 km/h (25 to 29 mph)
2
1 22 to 28 km/h (14 to 17 mph)
Throttle valve fully open
(Failure)
1
3 28 to 34 km/h (17 to 21 mph)
3
4 74 to 80 km/h (46 to 50 mph)
4
3 69 to 75 km/h (43 to 47 mph)
3
1 22 to 28 km/h (14 to 17 mph)

SS–34SERVICE SPECIFICATIONS – U151F AUTOMATIC TRANSAXLE
SS
Flange thickness Mark
1 3.0 mm (0.118 in.)
2 3.2 mm (0.126 in.)
3 3.4 mm (0.134 in.)
1st & reverse brake
Pack clearance1.16 to 1.35 mm (0.0457 to 0.0531in.)
Return spring free length15.53 mm (0.6114 in.)
Flange thickness Mark
1 1.8 mm (0.071 in.)
2 1.9 mm (0.075 in.)
3 2.0 mm (0.079 in.)
4 2.1 mm (0.083 in.)
5 2.2 mm (0.087 in.)
6 2.3 mm (0.091 in.)
7 2.4 mm (0.094 in.)
8 2.5 mm (0.098 in.)
U/D planetary gear
Preload (at 60 rpm) 0.50 to 1.42 N*m (5.1 to 14.5 kgf*cm, 0.06 to 0.17 in.*lbf)
Front planetary gear
Turning torque (at 60 rpm) New
Bearing0.51 to 1.02 N*m (5.1 to 10.0 kgf*cm, 4.4 to 8.7 in.*lbf)
Used
Bearing0.26 to 0.51 N*m (2.7 to 5.2 kgf*cm, 2.3 to 4.5 in.*lbf)
Input shaft
End play0.262 to 1.249 mm (0.0103 to 0.0492 in.)
Transaxle rear cover
Bearing press fit depth 20.55 to 21.25 mm (0.8091 to 0.8366 in.)
Transmission valve body
Valve body installation bolt length A 41 mm (1.614 in.)
B 57 mm (2.244 in.)
C 25 mm (0.984 in.)
Accumulator
Spring Free length/Outer diameter Color
B
3Inner 62.00 (2.4409) / 15.50 (0.610) Purple
Outer 74.23 (2.9224) / 16.50 (0.649) Purple
C
260.96 (2.3999) / 14.10 (0.555) Yellow
C
372.20 (2.8425) / 19.0 (0.748) Colorless
Front differential (U151F)
Side gear backlash 0.05 to 0.20 mm (0.0020 to 0.0079 in.) U/D brake

SERVICE SPECIFICATIONS – U151F AUTOMATIC TRANSAXLESS–35
SS
Thrust washer thickness
= Clearance - 0.162 to 0.265 mm (0.0064 to 0.0104 in.)
Mark
A 0.95 mm (0.0373 in.)
B 1.00 mm (0.0393 in.)
C 1.05 mm (0.0413 in.)
D 1.10 mm (0.0433 in.)
E 1.15 mm (0.0453 in.)
F 1.20 mm (0.0472 in.)
G 1.25 mm (0.0492 in.)
H 1.30 mm (0.0512 in.)
J 1.35 mm (0.0532 in.)
K 1.40 mm (0.0552 in.)
Pinion's backlash0.05 to 0.20 mm (0.0020 to 0.0079 in.)
Thrust washer thickness Mark
MA 0.80 mm (0.0313 in.)
MB 0.85 mm (0.0333 in.)
MC 0.90 mm (0.0353 in.)
MD 0.95 mm (0.0373 in.)
ME 1.00 mm (0.0393 in.)
MF 1.05 mm (0.0413 in.)
MG 1.10 mm (0.0433 in.)
MH 1.15 mm (0.0453 in.)
MJ 1.20 mm (0.0472 in.)
MK 1.25 mm (0.0492 in.)
ML 1.30 mm (0.0512 in.)
MM 1.35 mm (0.0532 in.)
MN 1.40 mm (0.0552 in.)
Preload (at 60 rpm) New
bearing0.20 to 0.69 N*m (2.0 to 7.0 kgf*cm, 1.8 to 6.1 in.*lbf)
Used
bearing0.10 to 0.35 N*m (1.0 to 3.6 kgf*cm, 0.9 to 3.1 in.*lbf)
Flange thickness Mark
0 2.00 mm (0.0787 in.)
1 2.05 mm (0.0807 in.)
2 2.10 mm (0.0827 in.)
3 2.15 mm (0.0846 in.)
4 2.20 mm (0.0866 in.)
5 2.25 mm (0.0886 in.)
6 2.30 mm (0.0906 in.)
7 2.35 mm (0.0925 in.)
8 2.40 mm (0.0945 in.)
9 2.45 mm (0.0965 in.)
A 2.50 mm (0.0984 in.)
B 2.55 mm (0.1004 in.)
C 2.60 mm (0.1024 in.)
D 2.65 mm (0.1043 in.)
E 2.70 mm (0.1063 in.)
F 2.75 mm (0.1083 in.)
G 2.80 mm (0.1102 in.)
H 2.85 mm (0.1122 in.) Front differential (U151F)

SS–36SERVICE SPECIFICATIONS – U151F AUTOMATIC TRANSAXLE
SS
Oil seal press in depth 5.5 to 6.5 mm (0.217 to 0.256 in.) Front differential (U151F)

AX–10U151E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
ROAD TEST
1. PROBLEM SYMPTOM CONFIRMATION
(a) Based on the result of the customer problem
analysis, try to reproduce the symptoms. If the
problem is that the transaxle does not shift up, shift
down, or the shift point is too high or too low,
conduct the following road test referring to the
automatic shift schedule and simulate the problem
symptoms.
2. ROAD TEST
NOTICE:
Perform the test at the ATF temperature 50 to 80
C
(122 to 176
F) in the normal operation.
(a) D position test:
Shift into the D position and fully depress the
accelerator pedal and check the following points.
(1) Check up-shift operation.
Check that 1
2, 2 3, 3 4 and 4 5th up-
shifts take place, and that the shift points
conform to the automatic shift schedule (See
page SS-24).
HINT:
5th Gear Up-shift Prohibition Control
• Engine coolant temperature is 55
C (131F)
or less and vehicle speed is at 80 km/h (176
mph) or less.
• ATF temperature is -2
C (28F) or less.
4th Gear Up-shift Prohibition Control
• Coolant temperature is 47
C (117F) or less
and vehicle speed is at 55 km/h (34 mph) or
less.
5th and 4th Gear Lock-up Prohibition Control
• Brake pedal is depressed.
• Accelerator pedal is released.
• Coolant temperature is 60
C (140F) or less.
(2) Check for shift shock and slip.
Check for shock and slip at the 1
2, 2 3, 3
4 and 4 5th up-shifts.
(3) Check for abnormal noise and vibration.
Drive in the D position lock-up or 5th gear, and
check for abnormal noises and vibration.
HINT:
The check for the cause of abnormal noise and
vibration must be done very thoroughly as it
could also be due to loss of balance in the
differential, torque converter clutch, etc.
(4) Check kick-down operation.
Check that the possible kick-down vehicle speed
limits for 2nd to 1st, 3rd to 2nd, 4th to 3rd, 5th to
4th kick-downs conform to those indicated on
the automatic shift schedule while driving
through all gears with the shift lever in the D
position (See page SS-24).
(5) Check abnormal shock and slip at kick-down.