2006 TOYOTA RAV4 2gr

ENGINE - 2GR-FE ENGINE
01MEG12Y
Oil Filter Case
Element
Filter Cap
Drain PlugElement
Filter Cap
Drain Plug
Drain Pipe
Hose
(Inside Diameter: 15 mm (0.59 in.))
When draining engine oil
Service Tip
The engine oil in the oil filter can be drained by removing the drain plug and inserting the drain
pipe supplied with the element into the oil filter. For details, refer to the 2006 RAV4 Repair Manual
(Pub. No. RM01M1U).
The engine oil maintenance interval for a model that has an oil filter with a replaceable element
is the same as that for the conventional model.
EG-87
4. Oil Filter
An oil filter with a replaceable element is used. The element uses a high-performance filter paper to
improve filtration performance. It is also combustible for environmental protection.
An aluminum alloy filter cap is used to extend its life.
This oil filter has a structure which can drain the engine oil remaining in the oil filter. This prevents engine
oil from spattering when replacing the element and allows the technician to work without touching hot
engine oil.

ENGINE - 2GR-FE ENGINE
285EG27
Air Bleeder PlugTo Throttle Body
From Throttle Body
To H e a t e r
From Heater
To Radiator
From Radiator Thermostat
Opening Temperature:
80 - 84
C (176 - 183F)
01MEG35Y
ThermostatBypass Pipe
Heater Return Pipe
Air Bleeder Plug
Cylinder Head
Cylinder Block
Wa t e r P u m p
Radiator
Throttle
Body
Heater
Reservoir
Ta n k
EG-88
COOLING SYSTEM
1. General
The cooling system is a pressurized, forced-circulation type.
A thermostat with a bypass valve is located on the water inlet housing to maintain suitable temperature
distribution in the cooling system.
A cooling fan control system in which the ECM optimally controls cooling fan speed is used. For details,
see page EG-129.
An air bleeder plug is provided on the water inlet assembly to improve the efficiency of changing the
engine coolant. For details, refer to the 2006 RAV4 Repair Manual (Pub. No. RM01M1U).
The TOYOTA genuine SLLC (Super Long Life Coolant) is used for the engine coolant.
System Diagram

ENGINE - 2GR-FE ENGINE
285EG29
Timing Chain Cover
Wa t e r P u m p G a s k e t
Wa t e r P u m pVolute ChambersFrom Water Inlet Housing
Rotor
View from Back Side
Cross SectionEG-89
Engine Coolant Specifications
Engine
Ty p e
TOYOTA genuine Super Long Life Coolant
(SLLC) or similar high quality ethylene glycol
based non-silicate, non-amine, non-nitrite and
non-borate coolant with long-life hybrid
organic acid technology (coolant with
long-life hybrid organic acid technology is a
combination of low phosphates and organic
acids.) Do not use plain water alone.
Engine
CoolantColorPink
Capacity
Except Towing
Package Models8.9 Liters (9.4 US qts, 7.8 Imp. qts)
CapacityTowing Package
Models9.2 Liters (9.7 US qts, 8.1 Imp. qts)
Maintenance IntervalsFirst Time100,000 miles (160,000 km)Maintenance IntervalsSubsequentEvery 50,000 miles (80,000 km)
SLLC is pre-mixed (the U.S.A. models: 50 % coolant and 50 % deionized water, the Canada. models: 55
% coolant and 45 % deionized water), so no dilution is needed when SLLC in the vehicle is added or
replaced.
If LLC is mixed with SLLC, the interval for LLC (every 25,000 miles (USA), 32,000 km (CANADA) or
24 months whichever comes first) should be used.
2. Water Pump
The water pump has two volute chambers, and circulates coolant uniformly to the left and right banks of the
cylinder block.

ENGINE - 2GR-FE ENGINE
01MEG15Y
Throttle Body
Intake Air
Chamber
ACIS Actuator
Intake Manifold
Left Bank Exhaust
ManifoldRight Bank
Exhaust ManifoldAir CleanerExhaust Pipe EG-90
INTAKE AND EXHAUST SYSTEM
1. General
The linkless-type throttle body is used and it realizes excellent throttle control.
The intake air chamber made of plastic is used.
A stainless steel exhaust manifold is used for weight reduction.
ETCS-i (Electronic Throttle Control System-intelligent) provides excellent throttle control. For details,
see page EG-118.
ACIS (Acoustic Control Induction System) has improved the engine performance. For details, see page
EG-126.
The air intake control system is used to reduce engine noise. For details, see page EG-128.

ENGINE - 2GR-FE ENGINE
01MEG13Y
Air Cleaner Hose with
Resonator
Air Cleaner Cap
Charcoal Filter
Air Cleaner Element
(Nonwoven Fabric)
Air Cleaner Case
Actuator
(For Air Intake Control)
Air Cleaner Inlet
Resonator
285EG32
Throttle Position Sensor
Throttle Control MotorEG-91
2. Air Cleaner
A nonwoven, full-fabric type air cleaner
element is used.
A charcoal filter, which adsorbs the HC that
accumulates in the intake system when the
engine is stopped, is used in the air cleaner case
in order to reduce evaporative emissions. This
filter is maintenance-free.
Along with the use of the air intake control
system, an air intake control valve is provided
on the air cleaner case. For details, see page
EG-128.
Resonators have been provided to reduce the
amount of intake air sound.
3. Throttle Body
A linkless-type throttle body in which the throttle position sensor and the throttle control motor are integrated
is used. It realizes excellent throttle valve control. For details, see page EG-118.
In the throttle control motor, a DC motor with excellent response and minimal power consumption is used.
The ECM performs the duty ratio control of the direction and the amperage of the current that flows to
the throttle control motor in order to regulate the throttle valve angle.

ENGINE - 2GR-FE ENGINE
285EG33
Intake Air
Control Valve
ACIS ActuatorLaser-welding
285EG34GasketsRubber Coating
Outer SideIntake
Port Side
A
A
A - A Cross Section EG-92
4. Intake Air Chamber
The intake air chamber is made of plastic to realize lightweight.
The intake air chamber contains an intake air control valve. This valve is activated by ACIS (Acoustic
Control Induction System) and is used to alter the intake pipe length to improve the engine performance
in all speed range. For details, see page EG-126.
The ACIS actuator uses an electric actuator and is laser-welded onto the intake air chamber. Many of the
components are made of plastic for weight reduction.
— REFERENCE —
Laser-welding:
In laser-welding, a laser-absorbing material (for the intake air chamber) is joined to a laser-transmitting
material (for the ACIS actuator). Laser beams are then irradiated from the laser-transmitting side. The
beams penetrate the laser-transmitting material to heat and melt the surface of the laser-absorbing material.
Then, the heat of the laser-absorbing material melts the laser-transmitting material and causes both
materials to become welded.
5. Intake Manifold
Lightweight aluminum alloy is used for the intake manifold.
The intake manifold gaskets have rubber coating applied onto surface, and provide superior durability.

ENGINE - 2GR-FE ENGINE
01MEG14Y
TWC
Right Bank Exhaust
ManifoldTWC
Left Bank Exhaust
ManifoldUltra
Thin-Wall
01MEG16Y
Exhaust Front PipeExhaust Center PipeTailpipe
Sub Muffler
Ball Joint
Main Muffler
TWC
Ball Joint
Spring
Bolt
Gasket Ball JointEG-93
6. Exhaust Manifold
A stainless steel exhaust manifold with an integrated TWC (Three-Way Catalytic converter) is used for
warm-up of the TWC and for weight reduction.
An ultra thin-wall, high-cell density, ceramic type TWC is used. This TWC is incorporated on each of the
right and left banks.
This TWC improves exhaust emissions by optimizing the cells density and the wall thickness.
7. Exhaust Pipe
The exhaust pipe is made of stainless steel for improved rust resistance.
A thin-wall, ceramic type TWC is used.
Ball joints are used at two places: one at the exhaust center pipe joint, and the other between the exhaust
center pipe and the tailpipe. As a result, a simple construction and reliability are realized.

ENGINE - 2GR-FE ENGINE
01MEG17Y
Injector
Quick Connector
Pulsation Damper
Fuel Pump Assembly
Fuel Filter
Pressure Regulator
Fuel Tank
Canister
Injector Fuel Delivery Pipe EG-94
FUEL SYSTEM
1. General
The fuel returnless system is used to reduce evaporative emissions.
A fuel cut control is used to stop the fuel pump when the SRS airbag is deployed in a frontal or side
collision. For details, see page EG-53.
The fuel delivery pipe made of plastic is used.
A quick connector is used to connect the fuel pipe with the fuel hose for excellent serviceability.
Compact 12-hole type injectors are used to increase atomization of the fuel.
A compact fuel pump in which a fuel filter is integrated in the fuel pump assembly is used.
The ORVR (On-board Refueling Vapor Recovery) system is used. For details, see page EG-131.