engine removal TOYOTA SIENNA 2007 Service User Guide

ES–5042GR-FE ENGINE CONTROL SYSTEM – MASS AIR FLOW METER
ES
ON-VEHICLE INSPECTION
1. INSPECT MASS AIR FLOW METER
NOTICE:
• Perform the mass air flow (MAF) meter inspection
by following the procedures below.
• Only replace the MAF meter when the MAF value
in the DATA LIST (with the engine stopped) are
not within the normal operating range or there is
foreign matter on the MAF meter platinum hot
wire (heater).
(a) Read the values using the intelligent tester (MAF).
NOTICE:
• Perform the inspection with the vehicle
indoors and on a level surface.
• Perform the inspection of the MAF meter
while it is installed to the air cleaner case
(installed to the vehicle).
• During the test, do not use the exhaust air
duct to perform suction on the exhaust pipe.
(1) Turn the ignition switch to the ON position (do
not start the engine).
(2) Turn the tester on.
(3) Select the following menu items: DIAGNOSIS /
ENHANCED OBD II / DATA LIST / PRIMARY /
PRIMARY / MAF.
(4) Wait 30 seconds, and read the values on the
intelligent tester.
Standard condition:
Less than 0.70 g/s
• If the result is not as specified, replace the
MAF meter.
• If the result is within the specified range,
inspect the cause of the extremely rich or
lean air fuel ratio.
REMOVAL
1. REMOVE MASS AIR FLOW METER
(a) Disconnect the mass air flow meter connector.
(b) Remove the 2 screws and mass air flow meter.
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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.
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ES–5142GR-FE ENGINE CONTROL SYSTEM – CRANKSHAFT POSITION SENSOR
ES
REMOVAL
1. REMOVE COMPRESSOR AND MAGNETIC CLUTCH
HINT:
(See page AC-227 )
2. REMOVE CRANKSHAFT POSITION SENSOR
(a) Disconnect the crankshaft position sensor
connector.
(b) Remove the bolt, and then remove the crankshaft
position sensor.
INSPECTION
1. INSPECT CRANKSHAFT POSITION SENSOR
(a) Using an ohmmeter, measure the resistance
between the terminals.
Standard resistance
NOTICE:
• "Cold" and "Hot" mean the temperature of the
coils themselves.
• "Cold" is from -10
C (14F) to 50C (122F)
and "Hot" is from 50
C (122F) to 100C
(212
F).
If the resistance is not as specified, replace the
crankshaft position sensor.
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Temperature Specified Condition
Cold 1,630 to 2,740
Hot 2,065 to 3,225

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.
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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].
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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.
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EM–62GR-FE ENGINE MECHANICAL – DRIVE BELT
EM
REMOVAL
1. REMOVE FRONT WHEEL RH
2. REMOVE FRONT FENDER APRON SEAL RH (See
page EM-26)
3. REMOVE V-RIBBED BELT
(a) Using SST, release the belt tension by turning the
belt tensioner counterclockwise, and remove the V-
ribbed belt from the belt tensioner.
SST 09249-63010
(b) While turning the belt tensioner counterclockwise,
align with its holes, and then insert the 5 mm bi-
hexagon wrench into the holes to fix the V-ribbed
belt tensioner.
INSPECTION
1. INSPECT V-RIBBED BELT
(a) Visually check the V-ribbed belt for excessive wear,
frayed cords, etc.
If any defect has been found, replace the V-ribbed
belt.
HINT:
Cracks on the rib side of a V-ribbed belt are
considered acceptable.
If the drive belt has chunks missing from its ribs, it
should be replaced.
HINT:
• A "new belt" is a belt which has been used for
less than 5 minutes with the engine running.
• A "used belt" is a belt which has been used for 5
minutes or more with the engine running.
2. INSPECT V-RIBBED BELT TENSIONER ASSEMBLY
(a) Check that nothing gets caught in the tensioner by
turning it clockwise and counterclockwise.
If a malfunction exitsts, replace the tensioner.
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EM–122GR-FE ENGINE MECHANICAL – ENGINE REAR OIL SEAL
EM
REMOVAL
1. REMOVE AUTOMATIC TRANSAXLE ASSEMBLY (for
2WD)
HINT:
See page AX-163.
2. REMOVE AUTOMATIC TRANSAXLE ASSEMBLY (for
4WD)
HINT:
See page AX-167.
3. REMOVE DRIVE PLATE AND RING GEAR SUB-
ASSEMBLY
(a) Using SST, hold the crankshaft.
SST 09213-70011 (09213-70020), 09330-00021
(b) Remove the 8 bolts, front spacer, drive plate and
rear spacer.
4. REMOVE ENGINE REAR OIL SEAL
(a) Using a knife, cut off the oil seal lip.
(b) Using a screwdriver, pry out the oil seal.
NOTICE:
Be careful not to damage the crankshaft. Tape
the screwdriver tip before use.
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EM–262GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLY
EM
REMOVAL
1. DISCHARGE FUEL SYSTEM PRESSURE (See page
FU-13)
2. DISCHARGE REFRIGERANT FROM
REFRIGERATION SYSTEM (See page AC-172)
3. REMOVE BATTERY
(a) Disconnect the negative battery terminal.
(b) Disconnect the positive battery terminal.
(c) Loosen the nut, and remove the bolt and battery
clamp.
(d) Remove the battery and battery tray.
4. PLACE FRONT WHEELS FACING STRAIGHT AHEAD
5. REMOVE FRONT WHEELS
6. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY
(a) Remove the 8 bolts, 4 clips and No. 1 engine under
cover assembly.
7. REMOVE FRONT FENDER APRON SEAL RH
(a) Remove the 2 bolts, clip and front fender apron seal
RH.
8. REMOVE FRONT FENDER APRON SEAL LH
(a) Remove the 2 bolts, clip and front fender apron seal
LH.
9. DRAIN ENGINE OIL (See page LU-4)
10. DRAIN ENGINE COOLANT (See page CO-6)
11. DRAIN AUTOMATIC TRANSAXLE FLUID (See page
AX-159)
12. REMOVE FRONT WIPER ARM HEAD CAP (See page
WW-4)
13. REMOVE WINDSHIELD WIPER ARM AND BLADE
ASSEMBLY RH (See page WW-4)
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2GR-FE FUEL – FUEL INJECTORFU–13
FU
REMOVAL
1. DISCHARGE FUEL SYSTEM PRESSURE
HINT:
See page FU-1.
2. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
3. REMOVE NO. 1 ENGINE UNDER COVER
4. DRAIN ENGINE COOLANT (See page CO-6)
5. REMOVE FRONT WIPER ARM HEAD CAP (See page
WW-4)
6. REMOVE FRONT WIPER ARM RH (See page WW-4)
7. REMOVE FRONT WIPER ARM LH (See page WW-4)
8. REMOVE COWL TOP VENTILATOR LOUVER SUB-
ASSEMBLY (See page WW-4)
9. REMOVE WINDSHIELD WIPER MOTOR AND LINK
ASSEMBLY (See page WW-4)
10. REMOVE NO. 1 COWL TOP TO COWL BRACE INNER
(a) Remove the 2 bolts and the No. 1 cowl top to cowl
brace inner.
11. REMOVE COWL TOP PANEL SUB-ASSEMBLY
OUTER FRONT
(a) Remove the wire harness clamp.
(b) Disconnect the fuel pump resistor connector.
(c) Remove the 7 bolts and the cowl top panel outer
front.
12. REMOVE V-BANK COVER SUB-ASSEMBLY (See
page EM-28)
13. REMOVE AIR CLEANER CAP SUB-ASSEMBLY
(a) Disconnect the 3 vacuum hoses.
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