sensor TOYOTA SIENNA 2007 Service Repair Manual

2GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLYEM–53
EM
(c) Install the frame side rail plates RH and LH with the
6 bolts and 2 nuts.
Torque: A
85 N*m (867 kgf*cm, 63 ft.*lbf)
B
32 N*m (329 kgf*cm, 24 ft.*lbf)
(d) Install the front suspension member brace rear RH
and LH with the 6 bolts and 2 nuts.
Torque: A
85 N*m (867 kgf*cm, 63 ft.*lbf)
B
32 N*m (329 kgf*cm, 24 ft.*lbf)
45. RECONNECT SUCTION HOSE SUB-ASSEMBLY (See
page AC-231)
46. RECONNECT DISCHARGE HOSE SUB-ASSEMBLY
(See page AC-232)
47. INSTALL STEERING INTERMEDIATE SHAFT SUB-
ASSEMBLY (See page SR-10)
48. INSTALL FRONT AXLE ASSEMBLY LH (See page DS-
18)
49. INSTALL FRONT AXLE ASSEMBLY RH
HINT:
Use the same procedures described for the LH side.
50. INSTALL FRONT SUSPENSION LOWER NO. 1 ARM
LH (See page DS-18)
51. INSTALL FRONT SUSPENSION LOWER NO. 1 ARM
RH
HINT:
Use the same procedures described for the LH side.
52. INSTALL TIE ROD ASSEMBLY LH (See page DS-18)
53. INSTALL TIE ROD ASSEMBLY RH
HINT:
Use the same procedures described for the LH side.
54. INSTALL FRONT SPEED SENSOR LH (See page DS-
18)
55. INSTALL FRONT SPEED SENSOR RH
HINT:
Use the same procedures described for the LH side.
56. INSTALL FRONT AXLE HUB NUT LH (See page DS-
19)
57. INSTALL FRONT AXLE HUB NUT RH
HINT:
Use the same procedures described for the LH side.
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2GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLYEM–63
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116. INSTALL NO. 1 ENGINE UNDER COVER ASSEMBLY
(a) Install the No. 1 engine under cover sub-assembly
with the 8 bolts and 4 clips.
117. INSTALL V-BANK COVER SUB-ASSEMBLY
(a) Fit the 3 retainers and install the V-bank cover.
118. CHECK ABS SPEED SENSOR SIGNAL
BC-72
119. RESET MEMORY
HINT:
See page AX-16.
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EM–762GR-FE ENGINE MECHANICAL – ENGINE UNIT
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DISASSEMBLY
1. REMOVE OIL FILLER CAP SUB-ASSEMBLY
(a) Remove the oil filler cap sub-assembly and oil filler
gasket.
2. REMOVE SPARK PLUG
(a) Remove the spark plugs.
3. REMOVE OIL PAN DRAIN PLUG
(a) Remove the oil pan drain plug and oil pan drain plug
gasket.
4. REMOVE VENTILATION VALVE SUB-ASSEMBLY
(a) Remove the ventilation valve sub-assembly.
5. REMOVE CAMSHAFT POSITION SENSOR
(a) Remove the 4 bolts and 4 camshaft position
sensors.
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2GR-FE ENGINE MECHANICAL – ENGINE UNITEM–77
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6. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE
ASSEMBLY
(a) Remove the 4 bolts and 4 camshaft oil control
valves.
7. REMOVE CRANKSHAFT POSITION SENSOR
(a) Remove the bolt and crankshaft position sensor.
8. REMOVE NO. 1 OIL PIPE
(a) Remove the 2 oil pipe unions, gaskets and oil pipe.
(b) Remove the oil control valve filter LH and gaskets.
9. REMOVE OIL PIPE
(a) Remove the bolt.
(b) Remove the 2 oil pipe unions and oil pipe.
(c) Remove the oil control valve filter RH and gaskets.
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EM–862GR-FE ENGINE MECHANICAL – ENGINE UNIT
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28. REMOVE TIMING CHAIN CASE OIL SEAL
(a) Using a screwdriver, pry out the timing chain case
oil seal.
HINT:
Tape the screwdriver tip before use.
29. SET NO. 1 CYLINDER TO TDC / COMPRESSION
(a) Temporarily tighten the pulley set bolt.
(b) Set the timing mark on the crank angle sensor plate
to the RH block bore center line (TDC /
compression).
(c) Check that the timing marks of the camshaft timing
gears are aligned with those of the bearing cap as
shown in the illustration.
If not, turn the crankshaft 1 revolution (360
) and
align the timing marks as above.
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EM–42GR-FE ENGINE MECHANICAL – ENGINE
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(h) Install the 6 ignition coils.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
(i) Install the intake air surge tank (See page ES-522).
10. INSPECT CO/HC
(a) Start the engine.
(b) Run the engine at 2500 rpm for approximately 180
seconds.
(c) Insert the CO/HC meter testing probe at least 40 cm
(1.3 ft.) into the tailpipe during idling.
(d) Check CO/HC concentration at idle and/or 2500
rpm.
HINT:
Check regulations and restrictions in your area
when performing 2 mode CO/HC concentration
testing (engine check at both idle speed and at 2500
rpm).
If the CO/HC concentration does not comply with
regulations, perform troubleshooting in the order
given below.
(1) Check air fuel ratio sensor and heated oxygen
sensor operation.
(2) See the table below for possible causes, and
then inspect and repair.
CO HC Problems Causes
Normal High Rough idle1. Faulty ignitions:
– Incorrect timing
– Fouled, shorted or improperly gapped plugs
2. Incorrect valve clearance
3. Leaks in intake and exhaust valves
4. Leaks in cylinders
Low HighRough idle
(fluctuating HC reading)1. Vacuum leaks:
– PCV hoses
– Intake manifold
– Throttle body
– Brake booster line
2. Lean mixture causing misfire
High HighRough idle
(black smoke from exhaust)1. Restricted air filter
2. Plugged PCV valve
3. Faulty SFI system:
– Faulty fuel pressure regulator
– Defective ECT sensor
– Defective MAF meter
–Faulty ECM
– Faulty injectors
– Faulty throttle position sensor

EM–1682GR-FE ENGINE MECHANICAL – ENGINE UNIT
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64. INSTALL OIL PIPE
(a) Make sure that there is no foreign matter on the
mesh of the oil control valve filter RH.
NOTICE:
Do not touch the mesh when installing the oil
control valve filter.
(b) Install the oil control valve filter RH to the oil pipe
union. Install new gaskets and temporarily install the
oil pipe (on the head cover side).
(c) Install a new gasket and temporarily install the oil
pipe (on the cylinder head side) with the oil check
valve bolt.
(d) Install the bolt (A) to the cylinder head.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
(e) Tighten the oil pipe union (on the head cover side).
Torque: 65 N*m (663 kgf*cm, 48 ft.*lbf)
(f) Tighten the oil pipe union (on the cylinder head
side).
Torque: 65 N*m (663 kgf*cm, 48 ft.*lbf)
NOTICE:
If the link that connects the gaskets is broken,
remove the connecting link by using nippers or
similar tools.
65. INSTALL CRANKSHAFT POSITION SENSOR
(a) Install the crankshaft position sensor with the bolt.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
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2GR-FE ENGINE MECHANICAL – ENGINE UNITEM–169
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66. INSTALL CAMSHAFT TIMING OIL CONTROL VALVE
ASSEMBLY
(a) Install the 4 camshaft timing oil control valves with
the 4 bolts.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
67. INSTALL CAMSHAFT POSITION SENSOR
(a) Install the 4 camshaft position sensors with the 4
bolts.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
68. INSTALL VENTILATION VALVE SUB-ASSEMBLY
(a) Apply adhesive around the ventilation valve sub-
assembly.
Adhesive:
Toyota Genuine Adhesive 1324, Three Bond
1324 or equivalent
(b) Install the ventilation valve sub-assembly.
Torque: 27 N*m (275 kgf*cm, 20 ft.*lbf)
69. INSTALL SPARK PLUG
(a) Install the 6 spark plugs.
Torque: 18 N*m (184 kgf*cm, 13 ft.*lbf)
70. INSTALL OIL FILLER CAP SUB-ASSEMBLY
(a) Install a new oil filler gasket.
(b) Install the oil filler cap sub-assembly.
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EM–342GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLY
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45. REMOVE PROPELLER WITH CENTER BEARING
SHAFT ASSEMBLY (See page PR-3)
46. DISCONNECT FRONT STABILIZER LINK ASSEMBLY
LH (See page DS-5)
47. DISCONNECT FRONT STABILIZER LINK ASSEMBLY
RH
HINT:
Use the same procedures described for the LH side.
48. REMOVE FRONT AXLE HUB NUT LH (See page DS-
5)
49. REMOVE FRONT AXLE HUB NUT RH
HINT:
Use the same procedures described for the LH side.
50. DISCONNECT FRONT SPEED SENSOR LH (See page
DS-5)
51. DISCONNECT FRONT SPEED SENSOR RH
HINT:
Use the same procedures described for the LH side.
52. DISCONNECT TIE ROD ASSEMBLY LH (See page
DS-6)
53. DISCONNECT TIE ROD ASSEMBLY RH
HINT:
Use the same procedures described for the LH side.
54. SEPARATE FRONT SUSPENSION LOWER NO. 1
ARM LH (See page DS-6)
55. SEPARATE FRONT SUSPENSION LOWER NO. 1
ARM RH
HINT:
Use the same procedures described for the LH side.
56. SEPARATE FRONT AXLE ASSEMBLY LH (See page
DS-6)
57. SEPARATE FRONT AXLE ASSEMBLY RH
HINT:
Use the same procedures described for the LH side.
58. DISCONNECT STEERING INTERMEDIATE SHAFT
SUB-ASSEMBLY
59. DISCONNECT DISCHARGE HOSE SUB-ASSEMBLY
(See page AC-227)
60. DISCONNECT SUCTION HOSE SUB-ASSEMBLY (See
page AC-227)
61. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE
(a) Set the engine lifter.

2GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLYEM–39
EM
83. REMOVE NO. 2 ENGINE MOUNTING STAY RH
(a) Remove the bolt and No. 2 engine mounting stay
RH.
84. REMOVE INTAKE MANIFOLD
(a) Uniformly loosen and remove the 6 bolts and 4 nuts.
(b) Remove the intake manifold and 2 gaskets.
85. REMOVE EXHAUST MANIFOLD SUB-ASSEMBLY RH
(a) Disconnect the A/F sensor connector clamp.
(b) Uniformly loosen and remove the 6 nuts.
(c) Remove the manifold and gasket.
86. REMOVE OIL LEVEL GAUGE GUIDE SUB-
ASSEMBLY
(a) Remove the oil level gauge.
(b) Remove the 2 bolts, No. 1 and No. 2 oil level gauge
guides.
(c) Remove the O-rings from the oil level gauge guide.
87. REMOVE NO. 2 MANIFOLD STAY
(a) Remove the bolt, nut and No. 2 manifold stay.
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