2006 TOYOTA RAV4 engine coolant

MAINTENANCE – UNDER HOODMA–7
MA
GENERAL MAINTENANCE
(2006/01- )
1. GENERAL NOTES
• Maintenance requirements vary depending on the
country.
• Check the maintenance schedule in the owner's
manual supplement.
• Following the maintenance schedule is mandatory.
• Determine the appropriate time to service the vehicle
using either miles driven or time elapsed, whichever
reaches the specification first.
• Maintain similar intervals between periodic
maintenance, unless otherwise noted.
• Failing to check each vehicle part could lead to poor
engine performance and increase exhaust emissions.
2. WINDSHIELD WASHER FLUID
(a) Check that there is sufficient fluid in the tank.
3. ENGINE COOLANT LEVEL
(a) Check that the coolant level is between the "FULL"
and "LOW" lines on the see-through reservoir.
4. RADIATOR AND HOSES
(a) Check that the front of the radiator is clean and not
blocked by leaves, dirt or bugs.
(b) Check the hoses for cracks, kinks, rot or loose
connections.
5. BATTERY ELECTROLYTE LEVEL
(a) Check that the electrolyte level of all the battery
cells is between the upper and lower level lines on
the case.
HINT:
If the electrolyte level is difficult to see, lightly shake
the vehicle.
6. BRAKE FLUID LEVEL
(a) Check that the brake fluid levels are near the upper
level lines on the see-through reservoirs.
7. ENGINE DRIVE BELT
(a) Check the drive belt for fraying, cracks, wear or
oiliness.
8. ENGINE OIL LEVEL
(a) Check the level on the dipstick with the engine
stopped.
9. AUTOMATIC TRANSAXLE FLUID LEVEL
10. EXHAUST SYSTEM
(a) Check for unusual exhaust sounds or abnormal
exhaust fumes. Inspect the cause and repair it.
Type See procedures
U151E See page AX-126
U151F See page AX-126

2GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLYEM–21
EM
REMOVAL
1. DISCHARGE REFRIGERANT FROM
REFRIGERATION SYSTEM (See page AC-172)
2. DISCHARGE FUEL SYSTEM PRESSURE (See page
FU-13)
3. 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.
4. REMOVE NO. 1 ENGINE UNDER COVER
(a) Remove the 4 bolts, 12 clips and under cover.
5. REMOVE REAR ENGINE UNDER COVER RH
(a) Remove the 2 clips and under cover.
6. REMOVE REAR ENGINE UNDER COVER LH
(a) Remove the 2 clips and under cover.
7. REMOVE NO. 2 ENGINE UNDER COVER
(a) Remove the 2 clips and under cover.
8. REMOVE FRONT FLOOR COVER (See page FU-34)
9. DRAIN ENGINE COOLANT (See page CO-8)
10. DRAIN ENGINE OIL (See page LU-4)
11. DRAIN AUTOMATIC TRANSAXLE FLUID
(a) 2WD:
Drain automatic transaxle fluid (see page AX-172).
(b) 4WD:
Drain automatic transaxle fluid (see page AX-173)
12. DRAIN TRANSFER OIL (for 4WD)
13. REMOVE HOOD SUB-ASSEMBLY (See page ED-4)
14. REMOVE V-BANK COVER SUB-ASSEMBLY
(a) Detach the 3 clips and remove the V-bank cover.
A137900

EM–302GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLY
EM
73. REMOVE ENGINE OIL PRESSURE SWITCH
ASSEMBLY
(a) Using a 24 mm deep socket wrench, remove the
pressure switch.
74. REMOVE KNOCK SENSOR (See page ES-459)
75. REMOVE ENGINE COOLANT TEMPERATURE
SENSOR
(a) Using a 19 mm deep socket wrench, remove the
sensor and gasket.
INSPECTION
1. INSPECT INTAKE MANIFOLD
(a) Using a precision straightedge and feeler gauge,
measure the warpage of the contact surface of the
cylinder head and intake air surge tank.
Maximum warpage
If the warpage is greater than the maximum, replace
the manifold.
2. INSPECT EXHAUST MANIFOLD
(a) Using a precision straightedge and feeler gauge,
measure the surface contacting the cylinder head
for warpage.
Maximum warpage:
0.70 mm (0.0028 in.)
If the warpage is greater than the maximum, replace
the manifold.
A129647
A129648
A137423E01
Item Specified Condition
Intake manifold side 0.8 mm (0.031 in.)
Cylinder head side 0.2 mm (0.008 in.)
A137425

IN–48INTRODUCTION – TERMS
IN
GLOSSARY OF SAE AND TOYOTA
TERMS
This glossary lists all SAE-J1930 terms and abbreviations
used in this manual in compliance with SAE
recommendations, as well as their TOYOTA equivalents.
SAE
ABBREVIATIONSSAE TERMS TOYOTA TERMS ( )-ABBREVIATIONS
3GR Third Gear -
4GR Fourth Gear -
A/C Air Conditioning Air Conditioner
ACL Air Cleaner Air Cleaner, A/CL
AIR Secondary Air Injection Air Injection (AI)
AP Accelerator Pedal -
B+ Battery Positive Voltage +B, Battery Voltage
BARO Barometric Pressure HAC
CAC Charge Air Cooler Intercooler
CARB Carburetor Carburetor
CFI Continuous Fuel Injection -
CKP Crankshaft Position Crank Angle
CL Closed Loop Closed Loop
CMP Camshaft Position Cam Angle
CPP Clutch Pedal Position -
CTOX Continuous Trap Oxidizer -
CTP Closed Throttle Position LL ON, Idle ON
DFI Direct Fuel Injection Direct Injection (DI/INJ)
DI Distributor Ignition -
DLC3 Data Link Connector 3 OBD II Diagnostic Connector
DTC Diagnostic Trouble Code Diagnostic Trouble Code
DTM Diagnostic Test Mode -
ECL Engine Coolant Level -
ECM Engine Control Module Engine Electronic Control Unit (ECU)
ECT Engine Coolant Temperature Coolant Temperature, Water Temperature (THW)
EEPROM Electrically Erasable Programmable Read Only MemoryElectrically Erasable Programmable Read Only Memory
(EEPROM)
EFE Early Fuel Evaporation Cold Mixture Heater (CMH), Heat Control Valve (HCV)
EGR Exhaust Gas Recirculation Exhaust Gas Recirculation (EGR)
EI Electronic Ignition Distributorless Ignition (DLI)
EM Engine Modification Engine Modification (EM)
EPROM Erasable Programmable Read Only Memory Programmable Read Only Memory (PROM)
EVAP Evaporative Emission Evaporative Emission Control (EVAP)
FC Fan Control -
FEEPROMFlash Electrically Erasable Programmable Read Only
Memory-
FEPROM Flash Erasable Programmable Read Only Memory -
FF Flexible Fuel -
FP Fuel Pump Fuel Pump
GEN Generator Alternator
GND Ground Ground (GND)
HO2S Heated Oxygen Sensor Heated Oxygen Sensor (HO2S)
IAC Idle Air Control Idle Speed Control (ISC)

CO–42AZ-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 a wire break
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.
A127842
A112176
A127843

2AZ-FE COOLING – COOLING FAN SYSTEMCO–5
CO
(c) Check that the cooling fan rotates.
If it does not, check the engine coolant temperature
sensor, cooling fan, harness or connector.
A127843

SERVICE SPECIFICATIONS – 2GR-FE ENGINE MECHANICALSS–21
SS
TORQUE SPECIFICATIONS
Part Tightened N*m kgf*cm ft.*lbf
Front suspension member reinforcement RH x Front
crossmember95 969 70
Front suspension member reinforcement RH x Front
suspension crossmember95 969 70
Radiator reservoir tank x Bract 5.0 51 44 in.*lbf
Engine coolant temperature sensor x Water outlet 20 204 14
Engine oil pressure sensor x Oil pan 21 214 15
No. 1 front engine mounting bracket LH x Timing chain
cover54 551 40
No. 2 idler pulley x Timing chain cover 43 438 32
No. 2 timing gear cover x Timing chain cover 6.0 61 53 in.*lbf
V-ribbed belt tensioner x Timing chain cover 43 438 32
V-ribbed belt tensioner x Cylinder block 43 438 32
Drive shaft bearing bracket x Cylinder block 64 653 47
Exhaust manifold LH x Cylinder head 21 214 15
No. 2 exhaust heat insulator x Exhaust manifold 8.5 87 75 in.*lbf
No. 2 manifold stay x Exhaust manifold 34 347 25
No. 2 manifold stay x Cylinder block 34 347 25
No. 1 oil dipstick guide x Cylinder block 21 214 15
No. 2 oil dipstick guide x Cylinder head 21 214 15
Exhaust manifold RH x Cylinder head 21 214 15
Intake manifold x Cylinder head 21 214 15
No. 2 engine mounting stay RH x Intake manifold 21 214 15
No. 2 engine mounting stay RH x Timing chain cover 21 214 15
Ignition coil x Cylinder head cover 10 102 7
Intake air surge tank x
Intake manifold5 mm hexagon wrench 18 184 13
for Bolt 21 214 15
for Nut 16 163 12
Vacuum hose clamp x Intake air surge tank 5.4 55 48 in.*lbf
Drive plate and ring gear x Crankshaft 178 1,815 132
Engine mounting bracket RR x Engine mounting
insulator RR95 969 70
Engine mounting bracket FR x Engine mounting
insulator FR145 1,479 107
Engine mounting bracket LH x Engine mounting
insulator LH56 571 41
Engine mounting insulator
RH x Front No. 1 engine
mounting bracketfor Bolt and nut A 95 969 70
for Nut B 52 530 38
Front crossmember x
Bodyfor Bolt A 96 979 71
Front suspension member
x Bodyfor Bolt B 145 1,478 107
Front suspension member
brace rear x Bodyfor Bolt C 145 1,478 107
for Bolt D 93 948 69
Air cleaner case x Engine mounting insulator LH 5.0 51 44 in.*lbf
Battery bracket reinforcement x Body 19 194 14
Front battery bracket x Body 19 194 14
Front battery bracket x Battery bracket reinforcement 19 194 14
Battery clamp x Body 5.0 51 44 in.*lbf

2AZ-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–25
ES
2. CATALYST MONITOR (ACTIVE AIR-FUEL RATIO
CONTROL TYPE)
(a) Preconditions
The monitor will not run unless:
• The MIL is OFF.
(b) Drive Pattern
(1) Connect the intelligent tester to the DLC3.
(2) Turn the ignition switch ON.
(3) Turn the tester ON.
(4) Clear DTCs (if set) (see page ES-35).
(5) Start the engine and warm it up.
(6) Drive the vehicle at between 40 mph and 70 mph
(64 km/h and 113 km/h) for at least 10 minutes.
(c) Monitor Status
Check the Readiness Monitor status displayed on
the tester.
If the status does not switch to COMPL (complete),
extend the driving time.
3. EVAP SYSTEM MONITOR (KEY OFF TYPE)
(a) Preconditions
The monitor will not run unless:
– The fuel tank is less than 90% full.
– The altitude is less than 8,000 ft. (2,450 m).
– The vehicle is stationary.
– The engine coolant temperature is between
4.4
C and 35C (40F and 95F).
– The intake air temperature is between 4.4
C and
35
C (40F and 95F).
– Vehicle was driven in a city area (or on freeway)
for 10 minutes or more.
A115372E25