engine TOYOTA SIENNA 2007 Service Repair Manual

2GR-FE INTAKE – VACUUM SWITCHING VALVEIT–7
IT
ENGINE
2GR-FE INTAKE
VACUUM SWITCHING VALVE
COMPONENTS
A162502E01

2GR-FE EXHAUST – EXHAUST PIPE (for 2WD)EX–1
EX
ENGINE
2GR-FE EXHAUST
EXHAUST PIPE (for 2WD)
COMPONENTS
A162480E01

2GR-FE EXHAUST – EXHAUST PIPE (for 4WD)EX–7
EX
ENGINE
2GR-FE EXHAUST
EXHAUST PIPE (for 4WD)
COMPONENTS
A162160E01

2GR-FE COOLING – WATER PUMPCO–11
CO
REMOVAL
1. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE
HINT:
See page EM-26
2. SECURE ENGINE (See page EM-37)
3. REMOVE GENERATOR ASSEMBLY (See page CH-17)
4. REMOVE COMPRESSOR AND MAGNETIC CLUTCH
(See page AC-227)
5. REMOVE NO. 1 ENGINE FRONT MOUNTING
BRACKET LH (See page EM-42)
6. REMOVE NO. 2 IDLER PULLEY SUB-ASSEMBLY
(a) Remove the 2 bolts, 2 idler pulley cover plates and 2
idler pulley sub-assemblies.
7. REMOVE V-RIBBED BELT TENSIONER ASSEMBLY
(a) Remove the 5 bolts and V-ribbed belt tensioner
assembly.
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CO–142GR-FE COOLING – WATER PUMP
CO
4. INSTALL V-RIBBED BELT TENSIONER ASSEMBLY
(a) Install the V-ribbed belt tensioner assembly with the
5 bolts.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
5. INSTALL NO. 2 IDLER PULLEY SUB-ASSEMBLY
(a) Install the 2 idler pulley cover plates and idler pulley
sub-assemblies with the 2 bolts.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
6. INSTALL NO. 1 ENGINE FRONT MOUNTING
BRACKET LH (See page EM-45)
7. INSTALL GENERATOR ASSEMBLY (See page CH-26)
8. INSTALL COMPRESSOR AND MAGNETIC CLUTCH
(See page AC-231)
9. INSTALL ENGINE HANGERS (See page EM-50)
10. REMOVE ENGINE STAND
11. INSTALL ENGINE ASSEMBLY WITH TRANSAXLE
HINT:
See page EM-44
12. ADD ENGINE COOLANT (See page CO-7)
13. INSPECT FOR COOLANT LEAK (See page CO-1)
A161449
A129645E01

2GR-FE COOLING – COOLING SYSTEMCO–1
CO
COOLING SYSTEM
ON-VEHICLE INSPECTION
1. INSPECT FOR COOLANT LEAK
CAUTION:
Do not remove the radiator cap while the engine and
radiator are still hot. Pressurized, hot engine coolant
and steam may be released and cause serious
burns.
NOTICE:
Before performing each inspection, turn the A/C
switch OFF.
(a) Fill the radiator with coolant and attach a radiator
cap tester.
(b) Warm up the engine.
(c) Using a radiator cap tester, increase the pressure
inside the radiator to 118 kPa (1.2 kgf/cm
2, 17 psi),
and check that the pressure does not drop.
If the pressure drops, check the hoses, radiator and
water pump for leaks. If no external leaks are found,
check the heater core, cylinder block and cylinder
head.
2. INSPECT ENGINE COOLANT LEVEL IN RESERVOIR
(a) Check that the engine coolant level is between the
LOW and FULL lines when the engine is cold.
If the engine coolant level is low, check for leaks and
add "TOYOTA Super Long Life Coolant" or similar
high quality ethylene glycol based non-silicate, non-
amine, non-nitrite and non-borate coolant with long-
life hybrid organic acid technology to the FULL line.
NOTICE:
Do not substitute plain water for engine coolant.
3. INSPECT ENGINE COOLANT QUALITY
(a) Remove the radiator cap.
CAUTION:
Do not remove the radiator cap while the engine
and radiator are still hot. Pressurized, hot
engine coolant and steam may be released and
cause serious burns.
(b) Check if there are any excessive deposits of rust or
scales around the radiator cap and radiator filler
hole. Also, the coolant should be free of oil.
If excessively dirty, clean the coolant passage and
replace the coolant.
(c) Install the radiator cap.
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CO–182GR-FE COOLING – THERMOSTAT
CO
3. INSTALL NO. 2 IDLER PULLEY SUB-ASSEMBLY
(a) Install the idler pulley cover plate and idler pulley
sub-assembly with the bolt.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
4. CONNECT NO. 2 RADIATOR HOSE
(a) Connect the No. 2 radiator hose to the engine.
5. INSTALL V-RIBBED BELT (See page EM-7)
6. INSTALL FRONT FENDER APRON SEAL RH
7. INSTALL FRONT WHEEL RH
8. ADD ENGINE COOLANT (See page CO-7)
9. INSTALL NO. 1 ENGINE UNDER COVER (See page
EM-63)
10. INSPECT FOR COOLANT LEAK (See page CO-1)
11. INSTALL V-BANK COVER SUB-ASSEMBLY (See
page EM-63)
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A162797

2GR-FE COOLING – COOLING FAN SYSTEMCO–5
CO
ON-VEHICLE INSPECTION
1. INSPECT COOLING FAN SYSTEM
(a) Put the vehicle in the following conditions:
(1) The engine switch is off.
(2) The coolant temperature is less than 95
C
(203
F).
(3) The battery voltage is between 9 and 14 V.
(4) The A/C switch is OFF.
(b) Clamp the 400 A probe of an ammeter over the M+
wire of each cooling fan motor.
(c) Turn the ignition switch to the ON position and wait
for approximately 10 seconds. Check that the fan
stops.
(d) Start the engine. Check that the fan stops with the
engine idling.
HINT:
• Make sure that the radiator engine coolant
temperature is less than 95
C (203F).
• Turn the A/C switch OFF.
(e) Check that the fan operates when the A/C switch is
turned ON (MAX COOL and the magnetic clutch is
operating).
Standard current
HINT:
The coolant temperature is less than 95
C (203F).
(f) Check that the fan operates when the engine
coolant temperature sensor connector is
disconnected.
Standard current
Item Specified Condition
No. 1 cooling fan motor 5 to 14 A
No. 2 cooling fan motor 4 to 12 A
Item Specified Condition
No. 1 cooling fan motor 5 to 19 A
No. 2 cooling fan motor 4 to 16 A

CO–62GR-FE COOLING – COOLING FAN SYSTEM
CO
(g) After the engine is warmed up, check that the fan
operates as shown in the illustration.
HINT:
• The coolant temperature at which the fan starts
operating is approximately 95
C (203F).
• This system can also be checked using the
intelligent tester.
• Select the following menu items: Powertrain /
Engine / Data List / Initial Engine Coolant Temp.
A139339E05

2GR-FE COOLING – RADIATORCO–29
CO
REMOVAL
1. REMOVE V-BANK COVER SUB-ASSEMBLY (See
page EM-28)
2. REMOVE NO. 1 ENGINE UNDER COVER (See page
EM-26)
3. DRAIN ENGINE COOLANT (See page CO-6)
4. REMOVE NO. 2 AIR CLEANER INLET (See page EM-
28)
5. REMOVE BATTERY (See page EM-26)
6. REMOVE FRONT BUMPER ASSEMBLY (See page
ET-3)
7. REMOVE FRONT BUMPER ENERGY ABSORBER
8. REMOVE NO. 1 AIR CLEANER INLET (See page EM-
28)
9. DISCONNECT RADIATOR RESERVE TANK HOSE OR
PIPE
(a) Disconnect the radiator reserve tank hose or pipe
from the radiator.
10. DISCONNECT NO. 1 RADIATOR HOSE
(a) Disconnect both connections of the No. 1 radiator
hose from the radiator.
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