Page 837 of 2000
EC–202GR-FE EMISSION CONTROL – VENTILATION VALVE
EC
INSTALLATION
1. INSTALL VENTILATION VALVE SUB-ASSEMBLY
(a) Apply adhesive to 2 or 3 threads of the ventilation
valve.
Adhesive:
Toyota genuine adhesive 1324, three bond
1324 or equivalent
(b) Using a 22 mm deep socket wrench, install the
ventilation valve.
Torque: 27 N*m (275 kgf*cm, 20 ft.*lbf)
(c) Connect the ventilation hose.
2. INSTALL V-BANK COVER SUB-ASSEMBLY (See
page EM-43)
3. CHECK FOR ENGINE OIL LEAKS
A092670E03
A136117E01
A136116
Page 838 of 2000
EC–242GR-FE EMISSION CONTROL – AIR FUEL RATIO SENSOR
EC
INSTALLATION
1. INSTALL AIR FUEL RATIO SENSOR (for Sensor 1)
(a) Using SST, install the sensor to the exhaust
manifold.
SST 09224-00010
Torque: 40 N*m (408 kgf*cm, 30 ft.*lbf) for use
with SST
44 N*m (449 kgf*cm, 32 ft.*lbf) for use
without SST
HINT:
• Use a torque wrench with a fulcrum length of 30
cm (11.81 in.).
• Make sure SST and a wrench are connected in a
straight line.
(b) Connect the sensor connector.
2. CONNECT CABLE TO NEGATIVE BATTERY
TERMINAL
3. CHECK FOR EXHAUST GAS LEAKS
A136120E01
Page 839 of 2000
EC–262GR-FE EMISSION CONTROL – HEATED OXYGEN SENSOR
EC
REMOVAL
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
2. REMOVE HEATED OXYGEN SENSOR (for Sensor 2)
(a) Bank 1 Sensor 2:
Remove the rear console box (see page IP-16).
(b) Disconnect the sensor connector.
(c) Using SST, remove the sensor from the exhaust
pipe.
SST 09224-00010
INSPECTION
1. INSPECT HEATED OXYGEN SENSOR (for Sensor 2)
(a) Measure the resistance of the sensor.
Standard resistance
If the resistance is not as specified, replace the
sensor.
A136122E01
A124800E01
Tester Connection Specified Condition Specified Condition
1 (HT1B) - 2 (+B) 20
C (68F) 11 to 16
1 (HT1B) - 4 (E2) - 10 k or higher
Page 840 of 2000
2GR-FE EMISSION CONTROL – HEATED OXYGEN SENSOREC–27
EC
INSTALLATION
1. INSTALL HEATED OXYGEN SENSOR (for Sensor 2)
(a) Using SST, install the sensor to the exhaust pipe.
SST 09224-00010
Torque: 40 N*m (408 kgf*cm, 30 ft.*lbf) for use
with SST
44 N*m (449 kgf*cm, 32 ft.*lbf) for use
without SST
HINT:
• Use a torque wrench with a fulcrum length of 30
cm (11.81 in.).
• Make sure SST and a wrench are connected in a
straight line.
(b) Connect the sensor connector.
(c) Bank 1 Sensor 2:
Install the rear console box (see page IP-23).
2. CONNECT CABLE TO NEGATIVE BATTERY
TERMINAL
3. CHECK FOR EXHAUST GAS LEAKS
A136123E01
Page 854 of 2000

CO–62GR-FE COOLING – COOLING FAN SYSTEM
CO
ON-VEHICLE INSPECTION
HINT:
It is normal for the cooling fan to sometimes rotate when the
ignition switch is turned from ACC to ON.
1. CHECK COOLING FAN OPERATION AT LOW
TEMPERATURES (Below 94
C (201F))
(a) Turn the ignition switch ON with the A/C switch OFF.
(b) Check that the cooling fan stops.
If it does not, check the cooling fan relays and
engine coolant temperature sensor, and then check
for disconnection of the connector or wire breaks
between the cooling fan relay and engine coolant
temperature sensor.
(c) Disconnect the engine coolant temperature sensor
connector.
(d) Check that the cooling fan rotates.
If it does not, check the fuses, cooling fan relays,
ECM and cooling fan, and then check for an open
circuit between the cooling fan relay and engine
coolant temperature sensor.
(e) Reconnect the engine coolant temperature sensor
connector.
2. CHECK COOLING FAN OPERATION AT HIGH
TEMPERATURES (Above 96
C (205F))
(a) Start the engine, and then raise the coolant
temperature to above 96
C (205F).
HINT:
Coolant temperature is the value detected by the
engine coolant temperature sensor on the cylinder
head.
(b) Check that the A/C switch is OFF.
A132414
A126963
A132415
Page 855 of 2000
2GR-FE COOLING – COOLING FAN SYSTEMCO–7
CO
(c) Check that the cooling fan rotates.
If it does not, check the engine coolant temperature
sensor, cooling fan, harness or connector.
A132415
Page 856 of 2000
2GR-FE COOLING – WATER PUMPCO–13
CO
6. REMOVE NO. 2 IDLER PULLEY SUB-ASSEMBLY
(a) Remove the bolt, No. 2 idler pulley cover plate and
No. 2 idler pulley.
7. REMOVE V-RIBBED BELT TENSIONER ASSEMBLY
(a) Remove the 5 bolts and V-ribbed belt tensioner
assembly.
8. REMOVE WATER PUMP ASSEMBLY
(a) Remove the 16 bolts, water pump and water pump
gasket.
INSPECTION
1. INSPECT WATER PUMP ASSEMBLY
(a) Visually check the drain hole for coolant leakage.
If leakage is found, replace the water pump
assembly.
(b) Turn the pulley, and then check that the water pump
bearing moves smoothly without making a clicking
noise.
If it does not move smoothly, replace the water
pump assembly.
INSTALLATION
1. INSTALL WATER PUMP ASSEMBLY
(a) Install a new water pump gasket and the water
pump with the 16 bolts.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf) for bolt A
9.1 N*m (93 kgf*cm, 81 in.*lbf) for bolt B
and C
A132445
A138913
A132448
A096655E01
A132448E01
Page 857 of 2000

CO–142GR-FE COOLING – WATER PUMP
CO
NOTICE:
• Be sure to replace the 2 C bolts with new
ones or reuse them after applying adhesive.
Adhesive:
Toyota Genuine Adhesive 1344, Three Bond
1344 or Equivalent
• Make sure that there is no oil on the threads
of the A bolts.
2. 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: 30 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)
3. INSTALL NO. 2 IDLER PULLEY SUB-ASSEMBLY
(a) Install the No. 2 idler pulley cover plate and No. 2
idler pulley with the bolt.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
4. INSTALL WATER PUMP PULLEY
(a) Temporarily install the water pump pulley with the 4
bolts.
(b) Using SST, hold the water pump pulley.
SST 09960-10010 (09962-01000, 09963-00700)
(c) Tighten the 4 bolts.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)
5. INSTALL CRANKSHAFT PULLEY (See page EM-126)
6. INSTALL WATER INLET HOUSING
(a) Install a new water inlet housing No. 1 gasket and
water outlet pipe O-ring.
A138913E01
A132445
A132444E01
A132443