timing belt TOYOTA SIENNA 2007 Service Repair Manual

2GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLYEM–41
EM
92. REMOVE ENGINE MOUNTING BRACKET RR (for
4WD)
(a) Remove the 3 bolts and engine mounting bracket
RR.
93. REMOVE GENERATOR ASSEMBLY (See page CH-17)
94. REMOVE COOLER COMPRESSOR ASSEMBLY
95. REMOVE V-RIBBED BELT TENSIONER ASSEMBLY
(a) Remove the 5 bolts and V-ribbed belt tensioner
assembly.
96. REMOVE NO. 2 TIMING GEAR COVER
(a) Remove the 2 bolts and No. 2 timing gear cover.
97. REMOVE NO. 2 IDLER PULLEY SUB-ASSEMBLY
(a) Remove the bolt, plate and No. 2 idler pulley sub-
assembly.
98. REMOVE WATER PUMP PULLEY (See page CO-12)
A143881
A129644
A132987
A129645E01

SS–10SERVICE SPECIFICATIONS – 2GR-FE ENGINE MECHANICAL
SS
TORQUE SPECIFICATIONS
Part Tightened N*m kgf*cm ft.*lbf
Ignition coil assembly x Cylinder head cover sub-assembly 10 102 7
No. 1 engine hanger x Cylinder head sub-assembly RH 33 337 24
No. 2 engine hanger x Cylinder head sub-assembly LH 33 337 24
Engine mounting bracket RH x Cylinder block sub-assembly 54 551 40
No. 1 oil level gauge guide x Cylinder head sub-assembly 21 214 15
No. 2 oil level gauge guide x Cylinder block sub-assembly 21 214 15
No. 2 idler pulley sub-assembly x Timing chain cover sub-assembly 43 438 32
V-ribbed belt tensioner assembly x Cylinder block sub-assembly 43 438 32
Intake manifold x Cylinder head sub-assembly 21 214 15
Exhaust manifold sub-assembly RH x Cylinder head sub-assembly
RH21 214 15
Exhaust manifold sub-assembly LH x Cylinder head sub-assembly LH 21 214 15
Drive plate & ring gear sub-assembly x Crankshaft 83 850 61
Air cleaner case sub-assembly x Body 5.0 51 44 in.*lbf
Air cleaner case sub-assembly x Air cleaner bracket 5.0 51 44 in.*lbf
Engine coolant temperature x water by-pass joint RR 20 200 14
Engine assembly with Transaxle x Body A 85 867 63
B 32 329 24
No. 2 manifold stay x Exhaust manifold sub-assembly LH 34 347 25
No. 2 manifold stay x Cylinder block sub-assembly 34 347 25
No. 1 air cleaner inlet x Body 5.0 51 44 in.*lbf
No. 2 air cleaner inlet x Body 5.0 51 44 in.*lbf
Battery clamp x Body Bolt 5.5 56 49 in.*lbf
Nut 5.5 56 49 in.*lbf
Throttle body bracket x Intake air surge tank assembly 21 214 15
Throttle body bracket x Cylinder head cover sub-assembly RH 21 21415
No. 1 surge tank stay x Intake air surge tank assembly 21 214 15
No. 1 surge tank stay x Cylinder head cover sub-assembly RH 21 21415
No. 1 cowl top to cowl brace inner x Body 7.5 76 66 in.*lbf
No. 1 cowl top to cowl brace inner x Front outer cowl top panel sub-
assembly7.5 76 66 in.*lbf
Front outer cowl top panel sub-assembly x Body 7.5 76 66 in.*lbf
Fuel pump resistor x Front outer cowl top panel sub-assembly 7.576 66 in.*lbf
Radio setting condenser x Cylinder head cover sub-assembly RH 10102 7
Radio setting condense x Cylinder head cover sub-assembly LH 10 102 7
Intake air resonator sub-assembly x Body 5.0 51 44 in.*lbf
Air cleaner bracket x Body 7.8 80 69 in.*lbf
No. 1 vacuum switching valve assembly x Cylinder head cover sub-
assembly10 102 7
Engine mounting bracket RR x Cylinder block sub-assembly 64 650 47
Steering intermediate shaft x Steering gear 35 360 26
Stabilizer link x Shock absorber 74 755 55
Tie rod assembly x Steering gear 49 500 36
Front speed sensor x Front axle 8.0 85 71 in.*lbf
Front axle hub nut x Front drive shaft 294 2998 217
Cooler compressor assembly x V-ribbed belt tensioner 25 250 18
Cooler compressor assembly x Discharge hose sub-assembly 5.4 55 48 in.*lbf
Cooler compressor assembly x Suction hose sub-assembly 5.4 55 48 in.*lbf

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–107
ES
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
All:
P0016 and P0018:
P0017 and P0019:
TYPICAL MALFUNCTION THRESHOLDS
P0016 and P0018:
P0017 and P0019:
WIRING DIAGRAM
Refer to DTC P0335 (See page ES-222).
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition
information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data
can be helpful in determining whether the vehicle was running or stopped, whether the engine was
warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of
a malfunction.
Related DTCsP0016: Deviation in crankshaft position sensor signal and camshaft position sensor
signal (Bank 1)
P0017: Deviation in crankshaft position sensor signal and camshaft position sensor
signal (Bank 1 Sensor 2)
P0018: Deviation in crankshaft position sensor signal and camshaft position sensor
signal (Bank 2)
P0019: Deviation in crankshaft position sensor signal and camshaft position sensor
signal (Bank 2 Sensor 2)
Required Sensors / Components (Main)P0016 and P0018: VVT actuator
P0017 and P0019: Timing chain/belt
Required Sensors / Components (Related)P0016 and P0018: Camshaft position sensor, Crankshaft position sensor
P0017 and P0019: None
Frequency of Operation Once per driving cycle
Duration Less than 60 seconds
MIL Operation 2 driving cycles
Sequence of Operation None
The monitor will run whenever these DTCs are not
presentP0011, P0012 (VVT System 1-Advance, Retard), P0021, P0022 (VVT System 2-
Adavance, Retard), P0115, P0116, P0117, P0118 (ECT Sensor)
Engine RPM 500 to 1000 rpm
VVT feedback mode Executing
VVT Maximum advanced position
Engine RPM 500 to 1000 rpm
One of the following conditions is met: Condition 1 or 2
1. VVT learning value at maximum retarded valve
timingLess than 18.5
CA
2. VVT learning value at maximum retarded valve
timingMore than 43.5
CA
One of the following conditions is met: Condition 1 or 2
1. VVT learning value Less than 77
CA
2. VVT learning value More than 102
CA

ES–3122GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
TYPICAL MALFUNCTION THRESHOLDS
INSPECTION PROCEDURE
HINT:
• DTC P050B may be set when the engine shows the symptom as listed below. If necessary, check the
trouble area as listed below.
• Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition
information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame
data can be helpful in determining whether the vehicle was running or stopped, whether the engine
was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the
time of a malfunction.
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Turn the tester on.
(d) Select the following the menu items: DIAGNOSIS /
ENHANCED OBD II / DTC INFO / CURRENT CODES.
(e) Read the DTCs.
Result
HINT:
If any DTCs other than P050B are output, troubleshoot
those DTCs first.
B
A
HINT:
Calculate the total fuel trim values to check the characteristic
deviation of the mass air flow meter.
(a) Connect the intelligent tester to the DLC3.
(b) Start the engine.
(c) Turn the tester on.
(d) Select the following menu items: DIAGNOSIS /
ENHANCED OBD II / DATA LIST / PRIMARY / SHORT
FT #1 and LONG FT #1.
Accumulated time when ignition timing retard value is insufficient 5 seconds or more
Symptoms Factor Trouble Area
Low idle speed at engine cold.Excessive engine friction• Engine oil deterioration
• Drive belt tension
• A/C compressor
• Generator
• P/S pump
Rough idle at engine cold. Abnormal combustion Fuel quality
1CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P050B)
Display (DTC Output) Proceed to
P050B A
P050B and other DTCs B
GO TO DTC CHART
2READ VALUE USING INTELLIGENT TESTER (FUEL TRIM)

EM–462GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLY
EM
8. INSTALL NO. 2 IDLER PULLEY SUB-ASSEMBLY
(a) Install the No. 2 idler pulley sub-assembly and cover
plate with the bolt.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
9. INSTALL NO. 2 TIMING GEAR COVER
(a) Install the No. 2 timing gear cover with the 2 bolts.
Torque: 6.0 N*m (61 kgf*cm, 53 in.*lbf)
10. INSTALL V-RIBBED BELT TENSIONER ASSEMBLY
(a) Temporarily install the V-ribbed belt tensioner with
the 5 bolts.
HINT:
Each bolt length is as follows:
A: 70 mm (2.76 in.)
B: 33 mm (1.30 in.)
(b) Install the V-ribbed belt tensioner by tightening the
bolt 1 and bolt 2 in the order shown in the
illustration.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
(c) Tighten the other bolts.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
11. INSTALL GENERATOR ASSEMBLY (See page CH-26)
12. INSTALL COOLER COMPRESSOR ASSEMBLY (See
page AC-231)
A129645E01
A132987
A129644E01

2GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLYEM–41
EM
92. REMOVE ENGINE MOUNTING BRACKET RR (for
4WD)
(a) Remove the 3 bolts and engine mounting bracket
RR.
93. REMOVE GENERATOR ASSEMBLY (See page CH-17)
94. REMOVE COOLER COMPRESSOR ASSEMBLY
95. REMOVE V-RIBBED BELT TENSIONER ASSEMBLY
(a) Remove the 5 bolts and V-ribbed belt tensioner
assembly.
96. REMOVE NO. 2 TIMING GEAR COVER
(a) Remove the 2 bolts and No. 2 timing gear cover.
97. REMOVE NO. 2 IDLER PULLEY SUB-ASSEMBLY
(a) Remove the bolt, plate and No. 2 idler pulley sub-
assembly.
98. REMOVE WATER PUMP PULLEY (See page CO-12)
A143881
A129644
A132987
A129645E01

EM–462GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLY
EM
8. INSTALL NO. 2 IDLER PULLEY SUB-ASSEMBLY
(a) Install the No. 2 idler pulley sub-assembly and cover
plate with the bolt.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
9. INSTALL NO. 2 TIMING GEAR COVER
(a) Install the No. 2 timing gear cover with the 2 bolts.
Torque: 6.0 N*m (61 kgf*cm, 53 in.*lbf)
10. INSTALL V-RIBBED BELT TENSIONER ASSEMBLY
(a) Temporarily install the V-ribbed belt tensioner with
the 5 bolts.
HINT:
Each bolt length is as follows:
A: 70 mm (2.76 in.)
B: 33 mm (1.30 in.)
(b) Install the V-ribbed belt tensioner by tightening the
bolt 1 and bolt 2 in the order shown in the
illustration.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
(c) Tighten the other bolts.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
11. INSTALL GENERATOR ASSEMBLY (See page CH-26)
12. INSTALL COOLER COMPRESSOR ASSEMBLY (See
page AC-231)
A129645E01
A132987
A129644E01