spark plugs replace TOYOTA RAV4 2006 Service Repair Manual

ENGINE - 2GR-FE ENGINEEG-71
FEATURES OF 2GR-FE ENGINE
The 2GR-FE engine has achieved the following performance through the use of the items listed below.
(1) High performance and reliability
(2) Low noise and vibration
(3) Lightweight and compact design
(4) Good serviceability
(5) Clean emission and fuel economy
Item
(1)(2)(3)(4)(5)
A steel laminate type cylinder head gasket is used.
An upright intake port is used.
EngineA taper squish shape is used for combustion chamber.Engine
ProperA cylinder block made of aluminum alloy is used.Proper
The skirt portion of the piston is applied with resin to
reduce friction.
An oil pan No. 1 made of aluminum alloy is used.
The Dual VVT-i (Variable Valve Timing-intelligent)
system is used.
Va l v e
Mh i
Hydraulic lash adjusters are used.
MechanismTiming chains and chain tensioners are used.
Roller rocker arms are used.
Lubrication
SystemAn oil filter with a replaceable element is used.
Cooling SystemThe TOYOTA Genuine SLLC (Super Long Life Coolant)Cooling SystemThe TOYOTA Genuine SLLC (Super Long Life Coolant)
is used for the engine coolant.
The linkless-type throttle body is used.
Intake andThe intake air chamber made of plastic is used.Intake and
Exhaust
S
A stainless steel exhaust manifold is used.
SystemAn ultra thin-wall, high-cell density ceramic type TWC
(Three-Way Catalytic converter) is used.
The fuel delivery pipe made of plastic is used.
Fuel SystemA compact 12-hole type injector is used.Fuel SystemQuick connectors are used to connect the fuel hose with
the fuel pipe.
Ignition System
The DIS (Direct Ignition System) makes ignition timing
adjustment unnecessary.
Ignition System
The long-reach type spark plugs are used.
(Continued)

2AZ-FE IGNITION – IGNITION SYSTEMIG–5
IG
ON-VEHICLE INSPECTION
1. CHECK IGNITION COIL ASSEMBLY AND PERFORM
SPARK TEST
NOTICE:
In this section, the terms "cold" and "hot" refer to
the temperature of the coils. "Cold" means
approximately -10 to 50
C (14 to 122F). "Hot" means
approximately 50 to 100
C (122 to 212F).
(a) Check the DTCs.
NOTICE:
If a DTC is present, perform troubleshooting in
accordance with the procedure for that DTC.
(b) Check that sparks occur.
(1) Remove the No. 1 engine cover.
(2) Remove the bolt and ignition coil.
(3) Using a 16 mm spark plug wrench, remove the
spark plug.
(4) Disconnect the 4 fuel injector connectors.
(5) Install the spark plug into the ignition coil, and
then connect the ignition coil connectors.
(6) Ground the spark plug.
(7) Check that sparks occur at the spark plug while
the engine is being cranked.
NOTICE:
• Be sure to ground the spark plugs when
checking them.
• If the ignition coil has been struck or
dropped, replace it.
• Do not crank the engine for more than 2
seconds.
If sparks do not occur, Perform the spark test.
(8) Using a 16 mm plug wrench, install the spark
plug.
Torque: 25 N*m (254 kgf*cm, 18 ft.*lbf)
A124849E01
A097448E01
A124396

2GR-FE IGNITION – IGNITION SYSTEMIG–5
IG
ON-VEHICLE INSPECTION
1. CHECK IGNITION COIL ASSEMBLY AND PERFORM
SPARK TEST
NOTICE:
In this section, the terms "Cold" and "Hot" refer to
the temperature of the sensor. "Cold" means
approximately -10 to 50
C (14 to 122F). "Hot" means
approximately 50 to 100
C (122 to 212F).
(a) Check the DTCs.
NOTICE:
If a DTC is present, perform troubleshooting in
accordance with the procedure for that DTC.
(b) Check that sparks occur.
(1) Remove the V-bank cover.
(2) Remove the intake air surge tank (see page
EM-27).
(3) Remove the bolt and ignition coil.
(4) Using a 16 mm spark plug wrench, remove the
spark plug.
(5) Disconnect the 6 fuel injector connectors.
(6) Install the spark plug into the ignition coil, and
then connect the ignition coil connectors.
(7) Ground the spark plug.
(8) Check that sparks occur at the spark plug while
the engine is being cranked.
NOTICE:
• Be sure to ground the spark plugs when
checking them.
• If the ignition coil has been struck or
dropped, replace it.
• Do not crank the engine for more than 2
seconds.
If sparks do not occur, perform troubleshooting
using the spark test flowchart.
(9) Using a 16 mm plug wrench, install the spark
plug.
Torque: 25 N*m (254 kgf*cm, 18 ft.*lbf)
(10) Install the ignition coil with the bolt.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
(11) Connect the 6 fuel injector connectors.
(12) Install the intake air surge tank (see page EM-
34).
(13) Install the V-bank cover.
A136823
A136826