SPARK TEST
Replace the crankshaft position sensor.
CHECK CONNECTION OF IGNITION COIL
CONNECTOR
CHECK RESISTANCE OF CRANKSHAFT POSITION
Resistance:Cold Hot
CHECK IGT SIGNAL FROM ECM
(See page DI±221)
REPAIR WIRING BETWEEN IGNITION COIL
AND ECM
Connect securely.
Check wiring between ignition switch
to ignition coil (with igniter).
Check ECM (See page IN±35)
NG
OK
OK
OKBAD
BAD
BAD
CHANGE IT TO NORMAL IGNITION COIL (WITH
IGNITER) AND PERFORM SPARK TEST AGAIN
OKReplace the ignition coil (with igniter).
NO
OK
985 ± 1,600 W1,265 ± 1,890 WBAD
CHECK POWER SUPPLY TO IGNITION COIL (WITH
1. Turn ignition switch to ON.
2. Check that there is battery voltage at ignition coil positive (+)
terminal.IGNITER)
CHECK TDC
NG
SENSOR (See page IG±12)
B03198
16 mm Plug Wrench
IG±2
± IGNITIONIGNITION SYSTEM
2863 Author: Date:
2005 SEQUOIA (RM1146U)
If the spark does not occur, do the test as follows:
(7) Using a 16 mm plug wrench, install the spark plugs.
Torque: 17.5 N´m (180 kgf´cm, 13 ft´lbf)
(8) Reinstall the ignition coils (with igniter).
(see page IG±6)
2. INSPECT SPARK PLUGS
(a) Remove the ignition coils (with igniter).
(see page IG±5)
(b) Using a 16 mm plug wrench, remove the spark plugs.
R11656
SST
Wire
Cylinder End
Stopper
F06757
SST
F06758
Vinyl Tape
F08339Oil Seal SST
SR±50
± STEERINGPOWER STEERING GEAR
3277 Author: Date:
2005 SEQUOIA (RM1146U)
5. INSTALL CYLINDER END STOPPER
(a) Align the installation hole for the wire of the stopper with
the slot of the rack housing.
(b) Install a new wire into the stopper.
(c) Using SST, turn the stopper clockwise 400° to 500°.
SST 09631±16010
6. AIR TIGHTNESS TEST
(a) Install SST to the rack housing.
SST 09631±12071
(b) Apply 53 kPa (400 mmHg, 15.75 in.Hg) of vacuum for
about 30 seconds.
(c) Check that there is no change in the vacuum.
If there is change in the vacuum, check the installation of the oil
seals.
7. INSTALL CONTROL VALVE ASSEMBLY
(a) To prevent oil seal lip damage, wind vinyl tape on the ser-
rated part of the valve shaft.
(b) Coat the teflon rings with power steering fluid.
(c) Install the valve assembly into the valve housing.
NOTICE:
Be careful not to damage the teflon rings and oil seal.
8. INSTALL OIL SEAL
(a) Coat a new oil seal lip with power steering fluid.
(b) Using SST, press in the oil seal.
SST 09612±22011
NOTICE:
Make sure to install the oil seal in the correct direction.
9. INSTALL CONTROL VALVE HOUSING WITH CON-
TROL VALVE ASSEMBLY
(a) Place a new gasket on the rack housing.
(b) Align the matchmarks on the control valve housing with
the one on the rack housing.
(c) Install the 2 bolts.
Torque: 18 N´m (185 kgf´cm, 13 ft´lbf)
05_SEQUOIA_U (L/O 0408)
210
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
YOUR COMPACT DISC PLAYER WITH
CHANGER (type 2)
When you insert a disc, push the ªLOADº
button and gently push the disc in with
the label side up. (The player will auto-
matically eject a disc if the label side is
down.) This compact disc player can store
up to six discs. The player will play from
track 1 through the end of the disc. Then
it will play from track 1 of the next disc.
The player is intended for use with 12 cm
(4.7 in.) discs only.
NOTICE
Do not stack up two discs for in-
sertion, or it will cause damage to
the compact disc changer. Insert
only one compact disc into slot at
a ti me.
Never try to disassemble or oil any
part of the compact disc player. Do
not insert anything except a com-
pact disc into the slot.
05_SEQUOIA_U (L/O 0408)
339
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
CAUTION
Avoid inhaling the engine exhaust.
It contains carbon monoxide, which
is a colorless and odorless gas. It
can cause unconsciousness or even
death.
Make sure the exhaust system has
no holes or loose connections. The
system should be checked from
time to time. If you hit something,
or notice a change in the sound of
the exhaust, have the system
checked immediately.
Do not run the engine in a garage
or enclosed area except for the
time needed to drive the vehicle in
or out. The exhaust gases cannot
escape, making this a particularly
dangerous situation.
Do not remain for a long time in a
parked vehicle with the engine run-
ning. If it is unavoidable, however,
do so only in an unconfined area
and adjust the heating or cooling
system to force outside air into the
vehicle.
Keep the back door and back win-
dow closed while driving. An open
or unsealed back door and back
window, may cause exhaust gases
to be drawn into the vehicle.
To allow proper operation of your
vehicle's ventilation system, keep
the inlet grilles in front of the wind-
shield clear of snow, leaves, or oth-
er obstructions.
If you smell exhaust fumes in the
vehicle, drive with the windows
open and the back door and back
window closed. Have the cause im-
mediately located and corrected.
FUNCTIONS OF ENGINE OIL
Engine oil has the primary functions of
lubricating and cooling the inside of the
engine, and plays a major role in main-
taining the engine in proper working order.
ENGINE OIL CONSUMPTION
It is normal that an engine should con-
sume some engine oil during normal
engine operation. The causes of oil
consumption in a normal engine are as
follows.
Oil is used to lubricate pistons, piston
rings and cylinders. A thin film of oil
is left on the cylinder wall when a pis-
ton moves downwards in the cylinder.
High negative pressure generated when
the vehicle is decelerating sucks some
of this oil into the combustion chamber.
This oil as well as some part of the oil
film left on the cylinder wall is burned
by the high temperature combustion
gases during the combustion process.
Engine exhaust cautionsFacts about engine oil
consumption
05_SEQUOIA_U (L/O 0408)
340
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
Oil is also used to lubricate the stems
of the intake valves. Some of this oil
is sucked into the combustion chamber
together with the intake air and is
burned along with the fuel. High tem-
perature exhaust gases also burn the
oil used to lubricate the exhaust valve
stems.
The amount of engine oil consumed de-
pends on the viscosity of the oil, the
quality of the oil and the conditions the
vehicle is driven under.
More oil is consumed by high±speed driv-
ing and frequent acceleration and decel-
eration.
A new engine consumes more oil, since
its pistons, piston rings and cylinder walls
have not become conditioned.
Oil consumption: Max. 1.0 L per 1000
km (1.1 qt./600 miles, 0.9 lmp. qt./600
miles)When judging the amount of oil con-
sumption, note that the oil may become
diluted and make it difficult to judge
the true level accurately.
As an example, if a vehicle is used for
repeated short trips, and consumes a nor-
mal amount of oil, the dipstick may not
show any drop in the oil level at all, even
after 1000 km (600 miles) or more. This
is because the oil is gradually becoming
diluted with fuel or moisture, making it
appear that the oil level has not changed.
The diluting ingredients evaporate out
when the vehicle is then driven at high
speeds, as on an expressway, making it
appear that oil is excessively consumed
after driving at high speeds.
IMPORTANCE OF ENGINE OIL LEVEL
CHECK
One of the most important points in prop-
er vehicle maintenance is to keep the en-
gine oil at the optimum level so that oil
function will not be impaired. Therefore, it
is essential that the oil level be checked
regularly. Toyota recommends that the oil
level be checked every time you refuel
the vehicle.NOTICE
Failure to check the oil level regularly
could lead to serious engine trouble
due to insufficient oil.
For detailed information on oil level check,
see ªChecking the engine oil levelº on
page 424 in Section 7±2.
05_SEQUOIA_U (L/O 0408)
414
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
Power steering fluid level
Check the level through the reservoir. The
level should be in the ªHOTº or ªCOLDº
range depending on the fluid temperature.
See page 428 in Section 7±2 for addition-
al information.
Exhaust system
If you notice any change in the sound of
the exhaust or smell exhaust fumes, have
the cause located and corrected immedi-
ately. (See ªEngine exhaust cautionsº on
page 339 in Section 2.)
INSIDE THE VEHICLE
Items listed below should be checked
regularly, e.g. while performing periodic
services, cleaning the vehicle, etc.
Lights
Make sure the headlights, stop lights, tail
lights, turn signal lights, and other lights
are all working. Check headlight aim.
Service reminder indicators and warning
buzzers
Check that all service reminder indicators
and warning buzzers function properly.
Steering wheel
Check that it has the specified free play.
Be alert for changes in steering condition,
such as hard steering or strange noise.Seats
Check that all seat controls such as seat
adjusters, seatback recliner, etc. operate
smoothly and that all latches lock securely
in any position. Check that the head re-
straint move up and down smoothly and
that the locks hold securely in any latched
position. For folding±down rear seatbacks,
swing±up rear seat cushions and detach-
able temporary third seat, check that the
latches lock securely.
Seat belts
Check that the seat belt system such as
buckles, retractors and anchors operate
properly and smoothly. Make sure the belt
webbing is not cut, frayed, worn or dam-
aged.
Accelerator pedal
Check the pedal for smooth operation and
uneven pedal effort or catching.
Brake pedal
Check the pedal for smooth operation and
that the pedal has the proper clearance.
Check the brake booster function.
Brakes
In a safe place, check that the brakes do
not pull to one side when applied.Parking brake
Check that the pedal has the proper travel
and that, on a safe incline, your vehicle
is held securely with only the parking
brake applied.
Automatic transmission ªParkº mecha-
nism
On a safe incline, check that your vehicle
is held securely with the selector lever in
ªPº position and all brakes released.
OUTSIDE THE VEHICLE
Items listed below should be performed
from time to time, unless otherwise
specified.
Fluid leaks
Check underneath for leaking fuel, oil, wa-
ter or other fluid after the vehicle has
been parked for a while. If you smell fuel
fumes or notice any leak, have the cause
found and corrected immediately.
Doors and engine hood
Check that all doors including back door
operate smoothly and all latches lock se-
curely. Make sure the engine hood sec-
ondary latch secures the hood from open-
ing when the primary latch is released.
05_SEQUOIA_U (L/O 0408)
415
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
Tire inflation pressure
Check the pressure with a gauge ev-
ery two weeks, or at least once a
month. See page 429 in Section 7±2
for additional information.
Tire surface and wheel nuts
Check the tires carefully for cuts,
damage or excessive wear. See page
432 in Section 7±2 for additional in-
formation. When checking the tires,
make sure no nuts are missing, and
check the nuts for looseness. Tighten
them if necessary.
Tire rotation
Rotate the tires according to the
maintenance schedule. (For sched-
uled maintenance information, please
refer to the ªScheduled Maintenance
Guideº or ªOwner 's Manual Supple-
mentº.) See page 434 in Section 7±2
for additional information.Be on the alert for changes in perfor-
mance, sounds, and visual tip±offs that
indicate service is needed. Some impor-
tant clues are as follows:
Engine missing, stumbling, or pinging
Appreciable loss of power
Strange engine noises
A leak under the vehicle (however, wa-
ter dripping from the air conditioning
after use is normal.)
Change in exhaust sound (This may
indicate a dangerous carbon monoxide
leak. Drive with the windows open and
have the exhaust system checked im-
mediately.)
Flat±looking tire; excessive tire squeal
when cornering; uneven tire wear
Vehicle pulls to one side when driving
straight on a level road
Strange noises related to suspension
movement
Loss of brake effectiveness; spongy
feeling brake pedal; pedal almost
touches floor; vehicle pulls to one side
when braking
Engine coolant temperature continually
higher than normal
Engine continually runs hot; oil pres-
sure gauge stays low
If you notice any of these clues, take your
vehicle to your Toyota dealer as soon as
possible. It probably needs adjustment or
repair.
CAUTION
Do not continue driving with the ve-
hicle unchecked. It could result in se-
rious vehicle damage and possibly
personal injury.
Does your vehicle need
repairing?
05_SEQUOIA_U (L/O 0408)
425
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
ENGINE OIL SELECTION
ªToyota Genuine Motor Oilº is used in
your Toyota vehicle. Use Toyota approved
ªToyota Genuine Motor Oilº or equivalent
to satisfy the following grade and
viscosity.
Oil grade:
API grade SL ªEnergy±Conservingº or
ILSAC multigrade engine oil
Recommended viscosity:
SAE 5W±30
Outside temperature
SAE 5W±30 is the best choice for good
fuel economy and good starting in cold
weather.
If SAE 5W±30 is not available, SAE
10W±30 may be used. However, it
should be replaced with SAE 5W±30 at
the next oil change.
API service symbol
ILSAC certification mark