2007 TOYOTA SIENNA engine assembly

ES–5002GR-FE ENGINE CONTROL SYSTEM – ECM
ES
2. INSTALL ECM (with 10 speakers system)
(a) Install the ECM and stereo components amplifier
with the 4 nuts.
Torque: 5.5 N*m (56 kgf*cm, 49 in.*lbf)
(b) Connect the 5 ECM connectors and 2 stereo
components amplifier connectors.
3. INSTALL NO. 2 INSTRUMENT PANEL BOX
(a) Install the No. 2 instrument panel box.
4. INSTALL GLOVE COMPARTMENT DOOR ASSEMBLY
(a) Install the glove compartment door sub-assembly
frontward to install it.
(b) Push the right side wall and then push the left wall
to install the stoppers.
5. PERFORM REGISTRATION
(a) When replacing the ECM, perform distance control
ECU recognition in ECM (See page CC-125).
A162676
B066075E01
A162677
B066073E01

ES–5102GR-FE ENGINE CONTROL SYSTEM – VVT SENSOR
ES
REMOVAL
1. REMOVE WINDSHIELD WIPER MOTOR ASSEMBLY
HINT:
(See page WW-4)
2. REMOVE FRONT OUTER COWL TOP PANEL SUB-
ASSEMBLY (See page EM-27)
3. DRAIN ENGINE COOLANT (See page CO-6)
4. REMOVE V-BANK COVER SUB-ASSEMBLY (See
page EM-28)
5. REMOVE NO. 2 AIR CLEANER INLET (See page EM-
28)
6. REMOVE NO. 1 AIR CLEANER INLET (See page EM-
28)
7. REMOVE AIR CLEANER CAP SUB-ASSEMBLY (See
page ES-493)
8. REMOVE AIR CLEANER CASE SUB-ASSEMBLY (See
page EM-28)
9. REMOVE INTAKE AIR SURGE TANK ASSEMBLY
(See page ES-521)
10. REMOVE VVT SENSOR (for Bank 1 Intake Side)
(a) Disconnect the VVT sensor connector.
(b) Remove the bolt and VVT sensor.
11. REMOVE VVT SENSOR (for Bank 1 Exhaust Side)
(a) Disconnect the VVT sensor connector.
(b) Remove the bolt and VVT sensor.
A135701
A135702

ES–5162GR-FE ENGINE CONTROL SYSTEM – ENGINE COOLANT TEMPERATURE SENSOR
ES
REMOVAL
1. DRAIN ENGINE COOLANT (See page CO-6)
2. REMOVE V-BANK COVER SUB-ASSEMBLY (See
page EM-28)
3. REMOVE NO. 2 AIR CLEANER INLET (See page EM-
28)
4. REMOVE NO. 1 AIR CLEANER INLET (See page EM-
28)
5. REMOVE AIR CLEANER CAP SUB-ASSEMBLY (See
page ES-493)
6. REMOVE AIR CLEANER CASE SUB-ASSEMBLY (See
page EM-28)
7. REMOVE ENGINE COOLANT TEMPERATURE
SENSOR
(a) Remove the engine coolant temperature sensor
connector.
(b) Remove the engine coolant temperature sensor.
INSPECTION
1. INSPECT ENGINE COOLANT TEMPERATURE
SENSOR
(a) Using an ohmmeter, measure the resistance
between the terminals.
Standard resistance
• If the result is as specified, do not replace the
engine coolant temperature sensor.
• If the result is not as specified, replace the
engine coolant temperature sensor.
NOTICE:
In case of checking the engine coolant
temperature sensor in water, do not allow water
to go into the terminals. After checking, dry the
engine coolant temperature sensor.
A162197
A164436E01
Condition Specified Condition
20
C (68F) 2.32 to 2.59 k
80C (176F) 0.310 to 0.326 k

2GR-FE ENGINE CONTROL SYSTEM – KNOCK SENSORES–521
ES
REMOVAL
1. DISCHARGE FUEL SYSTEM PRESSURE
(See page FU-13)
2. REMOVE V-BANK COVER SUB-ASSEMBLY (See
page EM-28)
3. DRAIN ENGINE COOLANT (See page CO-6)
4. REMOVE WINDSHIELD WIPER MOTOR ASSEMBLY
HINT:
(See page WW-4)
5. REMOVE FRONT OUTER COWL TOP PANEL SUB-
ASSEMBLY (See page EM-27)
6. REMOVE AIR CLEANER CAP SUB-ASSEMBLY (See
page ES-493)
7. REMOVE AIR CLEANER CASE SUB-ASSEMBLY (See
page EM-28)
8. REMOVE INTAKE AIR SURGE TANK ASSEMBLY
(a) Disconnect the 2 water by-pass hoses from the
throttle body [A].
(b) Disconnect the vapor feed hose [B].
(c) Disconnect the throttle body connector and clamp
[C].
(d) Disconnect the ventilation hose [D].
(e) Disconnect the union to check valve hose [E].
(f) Disconnect the connector [F].
A129464E07
A138457E04
A129467

ES–5222GR-FE ENGINE CONTROL SYSTEM – KNOCK SENSOR
ES
(g) Using a 5 mm socket hexagon wrench, remove the
4 bolts [G].
(h) Remove the 2 nuts, 2 bolts and intake air surge tank
[H].
(i) Remove the gasket from the intake air surge tank [I].
9. REMOVE FUEL MAIN TUBE SUB-ASSEMBLY (See
page EM-30)
10. REMOVE INTAKE MANIFOLD (See page EM-39)
11. REMOVE KNOCK CONTROL SENSOR
(a) Disconnect the 2 knock sensor connectors.
(b) Remove the 2 bolts and then remove the 2 knock
control sensors.
INSPECTION
1. KNOCK CONTROL SENSOR
(a) Using an ohmmeter, measure the resistance
between the terminals.
Resistance:
120 to 280 k
at 20C (68F)
If the resistance is not specified, replace the knock
control sensor.
INSTALLATION
1. INSTALL KNOCK CONTROL SENSOR
(a) Install the 2 knock control sensors with the 2 bolts
as shown in the illustration.
Torque: 20 N*m (204 kgf*cm, 15 ft.*lbf)
(b) Connect the 2 knock control sensor connectors.
2. INSTALL INTAKE MANIFOLD (See page EM-49)
3. INSTALL FUEL MAIN TUBE SUB-ASSEMBLY (See
page EM-56)
4. INSTALL INTAKE AIR SURGE TANK
NOTICE:
DO NOT apply oil to the bolts listed below.
A129468E08
A129615
A065174
A132951E01
Tightening PartsTo r q u e
N*m (kgf*cm, ft.*lbf)QTY
Surge Tank and Intake Manifold 18 (184, 13) 4
No. 1 Surge Tank Stay and Surge Tank 21 (214, 15) 1
Throttle Body Bracket and Surge Tank 21 (214, 15) 1

2GR-FE ENGINE CONTROL SYSTEM – KNOCK SENSORES–523
ES
(a) Install a new gasket to the intake air surge tank [A].
(b) Using a 5 mm hexagon socket wrench, install the 4
bolts [B].
Torque: 18 N*m (184 kgf*cm, 13 ft.*lbf)
(c) Install the intake air surge tank with the 2 nuts and 2
bolts [C].
Torque: Nut
16 N*m (163 kgf*cm, 12 ft.*lbf)
Bolt
21 N*m (214 kgf*cm, 15 ft.*lbf)
(d) Connect the connector [D].
(e) Connect the union to check valve hose [E].
(f) Connect the ventilation hose No. 2 [F].
(g) Install the clamp and connect the throttle with motor
body assembly connector [G].
(h) Connect the vapor feed hose [H].
(i) Connect the 2 water by-pass hoses to the throttle
with motor body assembly [I].
5. INSTALL AIR CLEANER CASE SUB-ASSEMBLY (See
page EM-59)
6. INSTALL AIR CLEANER CAP SUB-ASSEMBLY (See
page ES-496)
7. ADD ENGINE COOLANT (See page CO-7)
8. INSPECT FOR ENGINE COOLANT LEAK (See page
CO-1)
9. INSPECT FOR FUEL LEAK (See page FU-7)
10. INSTALL FRONT OUTER COWL TOP PANEL SUB-
ASSEMBLY (See page EM-61)
11. INSTALL WINDSHIELD WIPER MOTOR ASSEMBLY
HINT:
(See page WW-5)
A129468E09
A129467
A138457E05
A129464E08

ES–5242GR-FE ENGINE CONTROL SYSTEM – KNOCK SENSOR
ES
12. INSTALL V-BANK COVER SUB-ASSEMBLY (See
page EM-63)

EXTERIOR – FRONT BUMPERET–3
ET
REMOVAL
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
2. REMOVE FRONT BUMPER ASSEMBLY
(a) Remove the 4 screws and separate the fender liner
from the front bumper assembly.
(b) Remove the 8 screws and separate the engine
under cover from the front bumper assembly.
B125278
B125279