engine TOYOTA RAV4 2006 Service Repair Manual

EM–282GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLY
EM
(g) Disconnect the connector.
(h) Using a 5 mm socket hexagon wrench, remove the
4 bolts.
(i) Remove the 2 nuts, 2 bolts and surge tank.
(j) Remove the gasket from the surge tank.
54. REMOVE IGNITION COIL ASSEMBLY
(a) Remove the 6 bolts and 6 coils from the cylinder
head.
55. REMOVE NO. 2 ENGINE MOUNTING STAY RH
(a) Remove the bolt and mounting stay.
56. REMOVE FUEL INJECTOR ASSEMBLY (See page
FU-14)
57. REMOVE INTAKE MANIFOLD
(a) Remove the 6 bolts, 4 nuts, intake manifold and 2
gaskets.
58. REMOVE EXHAUST MANIFOLD SUB-ASSEMBLY RH
(a) Disconnect the air fuel ratio sensor connector
clamp.
(b) Uniformly loosen and remove the 6 nuts.
(c) Remove the manifold and gasket.
59. REMOVE FAN AND GENERATOR V BELT (See page
EM-8)
60. REMOVE COMPRESSOR WITH PULLEY ASSEMBLY
(See page AC-220)
61. REMOVE GENERATOR ASSEMBLY (See page CH-12)
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2GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLYEM–29
EM
62. REMOVE OIL DIPSTICK GUIDE
(a) Remove the dipstick.
(b) Remove the 2 bolts, and the No. 1 and No. 2
guides.
(c) Remove the O-rings from the guide.
63. REMOVE NO. 2 MANIFOLD STAY
(a) Remove the bolt, nut and manifold stay.
64. REMOVE NO. 2 EXHAUST MANIFOLD HEAT
INSULATOR
(a) Remove the 3 bolts and insulator.
65. REMOVE EXHAUST MANIFOLD SUB-ASSEMBLY LH
(a) Uniformly loosen and remove the 6 nuts.
(b) Remove the manifold and gasket.
66. REMOVE ENGINE MOUNTING BRACKET RH
(a) Remove the 3 bolts and bracket.
67. REMOVE DRIVE SHAFT BEARING BRACKET
(a) Remove the 3 bolts and drive shaft bearing bracket.
68. REMOVE V-RIBBED BELT TENSIONER ASSEMBLY
(a) Remove the 5 bolts and V-ribbed belt tensioner
assembly.
69. REMOVE NO. 2 TIMING GEAR COVER
(a) Remove the 2 bolts and gear cover.
70. REMOVE NO. 2 IDLER PULLEY SUB-ASSEMBLY
(a) Remove the bolt, plate and idler pulley.
71. REMOVE WATER PUMP PULLEY (See page CO-12)
72. REMOVE NO. 1 FRONT ENGINE MOUNTING
BRACKET LH
(a) Remove the 6 bolts and bracket.
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A139521
A139492
A139522

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

FU–62AZ-FE FUEL – FUEL SYSTEM
FU
ON-VEHICLE INSPECTION
1. CHECK FUEL PUMP OPERATION
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch ON. Do not start the engine.
(c) Select the following tester menus: DIAGNOSIS,
ENHANCED OBD II, ACTIVE TEST and FUEL
PUMP/SPD. Operate the fuel pump.
(d) Touch the fuel hose in the engine compartment to
check the fuel flow, and you will be able to hear the
sound of the fuel pump.
(e) Stop the fuel pump.
If there is no fuel flow, the fuel pump may not
operate. Check the fuel pump circuit (see page FU-
33).
2. CHECK FUEL PRESSURE
(a) Check that the battery positive voltage is above 12
V.
(b) Discharge the fuel system pressure (see page FU-
9).
(c) Disconnect the cable from the negative (-) battery
terminal.
(d) Disconnect the fuel main tube (see page FU-10).
(e) Install SST (pressure gauge) as shown in the
illustration.
SST 09268-31011 (95336-08070, 90467-13001,
09268-41500), 09268-45014 (09268-41200,
09268-41220, 09268-41250)
(f) Wipe off any gasoline.
(g) Reconnect the cable to the negative (-) battery
terminal.
(h) Start the engine.
(i) Measure the fuel pressure at idle.
Fuel pressure:
304 to 343 kPa (3.1 to 3.5 kgf/cm
2, 44 to 50 psi)
If the pressure is not as specified, check the fuel
pump and injectors.
(j) After checking the fuel pressure, disconnect the
cable from the negative (-) battery terminal and
carefully remove SST and the fuel tube connector to
prevent fuel from spilling.
(k) Reconnect the fuel main tube (see page FU-14).
(l) Check for fuel leaks (see page FU-14).
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A088229E05

IN–38INTRODUCTION – HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS
IN
ELECTRONIC CIRCUIT INSPECTION
PROCEDURE
1. BASIC INSPECTION
(a) WHEN MEASURING RESISTANCE OF
ELECTRONIC PARTS
(1) Unless otherwise stated, all resistance
measurements should be made at an ambient
temperature of 20
C (68F). Resistance
measurements may be inaccurate if measured
at high temperatures, i.e. immediately after the
vehicle has been running. Measurements should
be made after the engine has cooled down.
(b) HANDLING CONNECTORS
(1) When disconnecting a connector, first squeeze
the mating halves tightly together to release the
lock, and then press the lock claw and separate
the connector.
(2) When disconnecting a connector, do not pull on
the harnesses. Grasp the connector directly and
separate it.
(3) Before connecting a connector, check that there
are no deformed, damaged, loose or missing
terminals.
(4) When connecting a connector, press firmly until
it locks with a "click" sound.
(5) If checking a connector with a TOYOTA
electrical tester, check the connector from the
backside (harness side) using a mini test lead.
NOTICE:
• As a waterproof connector cannot be
checked from the backside, check it by
connecting a sub-harness.
• Do not damage the terminals by moving
the inserted tester needle.
(c) CHECKING CONNECTORS
(1) Checking when a connector is connected:
Squeeze the connector together to confirm that
they are fully connected and locked.
(2) Checking when a connector is disconnected:
Pull the wire harness lightly from the backside of
the connector. Visually check for the following: 1)
unlatched terminals, missing terminals, loose
crimps and broken conductor wires; 2)
corrosion, metallic matter, foreign matter and
water; and 3) bent, rusted, overheated,
contaminated and deformed terminals.
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D100734E01

INTRODUCTION – HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMSIN–41
IN
3. CHECK FOR SHORT CIRCUIT
(a) If the wire harness is ground shorted (Fig. 5), locate
the section by conducting a resistance check with
the body ground (below).
(b) Check the resistance with the body ground.
(1) Disconnect connectors A and C, and measure
the resistance.
Standard resistance (Fig. 6)
HINT:
Measure the resistance while lightly shaking the
wire harness vertically and horizontally.
If the results match the examples above, a short
circuit exists between terminal 1 of connector A
and terminal 1 of connector C.
(2) Disconnect connector B and measure the
resistance.
Standard resistance (Fig. 7)
If the results match the examples above, a short
circuit exists between terminal 1 of connector B2
and terminal 1 of connector C.
4. CHECK AND REPLACE ECU
NOTICE:
• The connector should not be disconnected from
the ECU. Perform the inspection from the
backside of the connector on the wire harness
side.
• When no measuring condition is specified,
perform the inspection with the engine stopped
and the ignition switch ON.
• Check that the connectors are fully seated. Check
for loose, corroded or broken wires.
D100789E01
D100790E01
Tester Connection Specified Condition
Connector A terminal 1 - Body
groundBelow 1
Connector A terminal 2 - Body
ground10 k or higher
D100800E01
Tester Connection Specified Condition
Connector A terminal 1 - Body
ground10 k
or higher
Connector B2 terminal 1 - Body
ground Below 1

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)

INTRODUCTION – TERMSIN–49
IN
IAT Intake Air Temperature Intake or Inlet Air Temperature
ICM Ignition Control Module -
IFI Indirect Fuel Injection Indirect Injection (IDL)
IFS Inertia Fuel-Shutoff -
ISC Idle Speed Control -
KS Knock Sensor Knock Sensor
MAF Mass Airflow Air Flow Meter
MAP Manifold Absolute Pressure Manifold Pressure Intake Vacuum
MC Mixture ControlElectric Bleed Air Control Valve (EBCV)
Mixture Control Valve (MCV)
Electric Air Control Valve (EACV)
MDP Manifold Differential Pressure -
MFI Multiport Fuel Injection Electronic Fuel Injection (EFI)
MIL Malfunction Indicator Lamp Check Engine Lamp
MST Manifold Surface Temperature -
MVZ Manifold Vacuum Zone -
NVRAM Non-Volatile Random Access Memory -
O2S Oxygen Sensor Oxygen Sensor, O2 Sensor (O2S)
OBD On-Board Diagnostic On-Board Diagnostic System (OBD)
OC Oxidation Catalytic Converter Oxidation Catalyst Converter (OC), CCo
OL Open Loop Open Loop
PAIR Pulsed Secondary Air Injection Air Suction (AS)
PCM Powertrain Control Module -
PNP Park/Neutral Position -
PROM Programmable Read Only Memory -
PSP Power Steering Pressure -
PTOX Periodic Trap OxidizerDiesel Particulate Filter (DPF)
Diesel Particulate Trap (DPT)
RAM Random Access Memory Random Access Memory (RAM)
RM Relay Module -
ROM Read Only Memory Read Only Memory (ROM)
RPM Engine Speed Engine Speed
SC Supercharger Supercharger
SCB Supercharger Bypass E-ABV
SFI Sequential Multiport Fuel Injection Electronic Fuel Injection (EFI), Sequential Injection
SPL Smoke Puff Limiter -
SRI Service Reminder Indicator -
SRT System Readiness Test -
ST Scan Tool -
TB Throttle Body Throttle Body
TBI Throttle Body Fuel InjectionSingle Point Injection
Central Fuel Injection (Ci)
TC Turbocharger Turbocharger
TCC Torque Converter Clutch Torque Converter
TCM Transmission Control Module Transmission ECU, ECT ECU
TP Throttle Position Throttle Position
TR Transmission Range -
TVV Thermal Vacuum ValveBimetallic Vacuum Switching Valve (BVSV)
Thermostatic Vacuum Switching Valve (TVSV) SAE
ABBREVIATIONSSAE TERMS TOYOTA TERMS ( )-ABBREVIATIONS

2AZ-FE EMISSION CONTROL – EMISSION CONTROL SYSTEMEC–7
EC
ON-VEHICLE INSPECTION
1. CHECK FUEL CUT RPM
(a) Increase the engine speed to at least 3,500 rpm.
(b) Use a sound scope to check for injector operating
noise.
(c) Check that the operating sounds stop momentarily
and then resume when the throttle lever is released.
HINT:
Measure with the A/C OFF.
Fuel return rpm:
1,400 rpm
2. CHECK FOR LEAKS
(a) Visually check that the hoses, connections and
gaskets have no cracks, leaks or damage.
NOTICE:
• Detachment or other problems with the
engine oil dipstick, filler cap, PCV hose and
other components may cause the engine to
run improperly.
• Disconnection, looseness or cracks in the
parts of the air induction system between the
throttle body and cylinder head will allow air
suction and cause an engine failure or engine
malfunctions.
If the result is not as specified, replace parts as
necessary.
3. CHECK LINE AND CONNECTORS
(a) Visually check for loose connections, sharp bends
or damage.
4. CHECK FUEL TANK ASSEMBLY
(a) Visually check for deformation, cracks or fuel
leakage.
5. CHECK FUEL TANK AND VENT LINE
(a) Disconnect the vent line tube from the canister.
(b) Connect a pressure gauge to the vent line tube.
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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.
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A127843