2001 TOYOTA SEQUOIA engine

IN±46
± INTRODUCTIONTERMS
46 Author: Date:
2005 SEQUOIA (RM1146U) IAC
Idle Air ControlIdle Speed Control (ISC)
IATIntake Air TemperatureIntake or Inlet Air Temperature
ICMIgnition Control Module±
IFIIndirect Fuel InjectionIndirect Injection (IDL)
IFSInertia Fuel±Shutoff±
ISCIdle Speed Control±
KSKnock SensorKnock Sensor
MAFMass AirflowAir Flow Meter
MAPManifold Absolute PressureManifold Pressure Intake Vacuum
MCMixture Control
Electric Bleed Air Control Valve (EBCV)
Mixture Control Valve (MCV)
Electric Air Control Valve (EACV)
MDPManifold Differential Pressure±
MFIMultiport Fuel InjectionElectronic Fuel Injection (EFI)
MILMalfunction Indicator LampCheck Engine Lamp
MSTManifold Surface Temperature±
MVZManifold Vacuum Zone±
NVRAMNon±Volatile Random Access Memory±
O2SOxygen SensorOxygen Sensor, O2 Sensor (O2S)
OBDOn±Board DiagnosticOn±Board Diagnostic System (OBD)
OCOxidation Catalytic ConverterOxidation Catalyst Convert (OC), CCo
OLOpen LoopOpen Loop
PAIRPulsed Secondary Air InjectionAir Suction (AS)
PCMPowertrain Control Module±
PNPPark/Neutral Position±
PROMProgrammable Read Only Memory±
PSPPower Steering Pressure±
PTOXPeriodic Trap OxidizerDiesel Particulate Filter (DPF)
Diesel Particulate Trap (DPT)
RAMRandom Access MemoryRandom Access Memory (RAM)
RMRelay Module±
ROMRead Only MemoryRead Only Memory (ROM)
RPMEngine SpeedEngine Speed
SCSuperchargerSupercharger
SCBSupercharger BypassE±ABV
SFISequential Multiport Fuel InjectionElectronic Fuel Injection (EFI), Sequential Injection
SPLSmoke Puff Limiter±
SRIService Reminder Indicator±
SRTSystem Readiness Test±
STScan Tool±
TBThrottle BodyThrottle Body
TBIThrottle Body Fuel InjectionSingle Point Injection
Central Fuel Injection (Ci)
TCTurbochargerTurbocharger
TCCTorque Converter ClutchTorque Converter
TCMTransmission Control ModuleTransmission ECU, ECT ECU

MA001±42
± MAINTENANCEOUTSIDE VEHICLE
MA±1
48 Author: Date:
2005 SEQUOIA (RM1146U)
OUTSIDE VEHICLE
GENERAL MAINTENANCE
The owners are responsible for these maintenance and inspection items.
They can be done by the owner or they can have them done at a service shop.
These items include those which should be checked on a daily basis, those which, in most cases, do not
require (special) tools and those which are considered to be reasonable for the owner to do.
Items and procedures for general maintenance are as follows.
1. GENERAL NOTES

Maintenance items may vary from country to country. Check the owner's manual supplement in which
the maintenance schedule is shown.

Every service item in the periodic maintenance schedule must be performed.

Periodic maintenance service must be performed according to whichever interval in the periodic main-
tenance schedule occurs first, the odometer reading (miles) or the time interval (months).

Maintenance service after the last period should be performed at the same interval as before unless
otherwise noted.

Failure to do even one item can cause the engine to run poorly and increase exhaust emissions.
2. TIRES
(a) Check the pressure with a gauge.
If necessary, adjust.
(b) Check for cuts, damage or excessive wear.
3. WHEEL NUTS
When checking the tires, check the nuts for looseness or for missing.
If necessary, tighten them.
4. TIRE ROTATION (See page SA±3)
Check the owner's manual supplement in which the maintenance schedule is shown.
5. WINDSHIELD WIPER BLADES
Check for wear or cracks whenever they do not wipe clean.
If necessary, replace.
6. FLUID LEAKS
(a) Check underneath for leaking fuel, oil, water or other fluid.
(b) If you smell gasoline fumes or notice any leak, find the cause and correct.
7. DOORS AND ENGINE HOOD
(a) Check that all doors and the tailgate operate smoothly, and that all latches lock securely.
(b) Check that the engine hood secondary latch secures the hood from opening when the primary latch
is released.

MA002±35
MA±2
± MAINTENANCEINSIDE VEHICLE
49 Author: Date:
2005 SEQUOIA (RM1146U)
INSIDE VEHICLE
GENERAL MAINTENANCE
These are maintenance and inspection items which are considered to be the owner's responsibility.
They can be done by the owner or they can have them done at a service shop.
These items include those which should be checked on a daily basis, those which, in most cases, do not
require (special) tools and those which are considered to be reasonable for the owner to do.
Items and procedures for general maintenance are as follows.
1. GENERAL NOTES

Maintenance items may vary from country to country. Check the owner's manual supplement in which
the maintenance schedule is shown.

Every service item in the periodic maintenance schedule must be performed.

Periodic maintenance service must be performed according to whichever interval in the periodic main-
tenance schedule occurs first, the odometer reading (miles) or the time interval (months).

Maintenance service after the last period should be performed at the same interval as before unless
otherwise noted.

Failure to do even one item can cause the engine to run poorly and increase exhaust emissions.
2. LIGHTS
(a) Check that the headlights, stop lights, taillights, turn signal lights, and other lights are all working.
(b) Check the headlight aim.
3. WARNING LIGHTS AND BUZZERS
Check that all warning lights and buzzers function properly.
4. HORN
Check that it is working.
5. WINDSHIELD GLASS
Check for scratches, pits or abrasions.
6. WINDSHIELD WIPER AND WASHER
(a) Check operation of the wipers and washer.
(b) Check that the wipers do not streak.
7. WINDSHIELD DEFROSTER
Check that air comes out from the defroster outlet when operating the heater or air conditioner.
8. REAR VIEW MIRROR
Check that it is mounted securely.
9. SUN VISORS
Check that they move freely and are mounted securely.
10. STEERING WHEEL
Check that it has the specified free play. Be alert for changes in steering condition, such as hard steering,
excessive free play or strange noises.
11. SEATS
(a) Check that the seat adjusters operate smoothly.
(b) Check that all latches lock securely in any position.
(c) Check that the head restraints move up and down smoothly and that the locks hold securely in any
latch position.
(d) For fold±down seat backs, check that the latches lock securely.
12. SEAT BELTS
(a) Check that the seat belt system such as the buckles, retractors and anchors operate properly and
smoothly.
(b) Check that the belt webbing is not cut, frayed, worn or damaged.

MA003±50
MA±4
± MAINTENANCEUNDER HOOD
51 Author: Date:
2005 SEQUOIA (RM1146U)
UNDER HOOD
GENERAL MAINTENANCE
1. GENERAL NOTES

Maintenance items may vary from country to country. Check the owner's manual supplement in which
the maintenance schedule is shown.

Every service item in the periodic maintenance schedule must be performed.

Periodic maintenance service must be performed according to whichever interval in the periodic main-
tenance schedule occurs first, the odometer reading (miles) or the time interval (months).

Maintenance service after the last period should be performed at the same interval as before unless
otherwise noted.

Failure to do even one item can cause the engine to run poorly and increase exhaust emissions.
2. WINDSHIELD WASHER FLUID
Check that there is sufficient fluid in the tank.
3. ENGINE COOLANT LEVEL
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 with leaves, dirt or bugs.
(2UZ±FE engine: See page CO±14)
(b) Check the hoses for cracks, kinks, rot or loose connections.
5. BATTERY ELECTROLYTE LEVEL
Check that the electrolyte level of all battery cells is between the upper and lower level lines on the case.
6. BRAKE AND CLUTCH FLUID LEVELS
Check that the brake and clutch fluid levels are near the upper level line on the see±through reservoirs.
7. ENGINE DRIVE BELTS
Check all drive belts for fraying, cracks, wear or oiliness.
8. ENGINE OIL LEVEL
Check the level on the dipstick with the engine turned off.
9. POWER STEERING FLUID LEVEL
(a) Check the level on the dipstick.
(b) The level should be in the HOT or COLD range depending on the fluid temperature.
10. AUTOMATIC TRANSMISSION FLUID LEVEL
(a) Park the vehicle on a level surface.
(b) With the engine idling and the parking brake applied, shift the selector into all positions from the P to
L, and then shift into the P position.
(c) Pull out the dipstick and wipe off the fluid with a clean rag. Re±insert the dipstick and check that the
fluid level is in the HOT range.
(d) Do this check with the fluid at normal driving temperature (70 ± 80°C, 158 ± 176°F).
HINT:
Wait until the engine cools down (approx. 30 min.) before checking the fluid level after extended driving at
high speeds, in hot weather, in heavy traffic or pulling a trailer.
11. EXHAUST SYSTEM
(a) Visually inspect for cracks, holes or loose supports.
(b) If any change in the sound of the exhaust or smell of the exhaust fumes is noticed, find the cause and
correct.

MA004±18
P08488
Back Front
± MAINTENANCEENGINE
MA±5
52 Author: Date:
2005 SEQUOIA (RM1146U)
ENGINE
INSPECTION
HINT:
Perform the following procedures when the engine is cold.
1. REPLACE TIMING BELT
(See page EM±13)
2. INSPECT DRIVE BELT
(See page CH±1)
3. REPLACE SPARK PLUGS
(See page IG±1)
4. INSPECT AIR FILTER
(a) Visually check that the air cleaner element is not exces-
sively dirty, damaged or oily.
HINT:
Oiliness may indicate a stuck PCV valve.
If necessary, replace the air cleaner element.
(b) Clean the element with compressed air.
First blow from back side thoroughly, then blow off the
front side of the element.
5. REPLACE AIR FILTER
Replace the used air cleaner element with a new one.
6. REPLACE ENGINE OIL AND OIL FILTER
(See page LU±2)
7. REPLACE ENGINE COOLANT
(See page CO±2)
8. INSPECT CHARCOAL CANISTER
(See page EC±9)
9. REPLACE GASKET IN FUEL TANK CAP
(See page SF±33)
10. INSPECT FUEL LINES, CONNECTIONS, FUEL TANK
VAPOR VENT SYSTEM HOSES AND FUEL TANK
BAND
Visually inspect the fuel lines for cracks, leakage loose connec-
tions, deformation or tank band looseness.
11. INSPECT EXHAUST PIPES AND MOUNTINGS
Visually inspect the pipes, hangers and connections for severe
corrosion, leaks or damage.
12. INSPECT VALVE CLEARANCE
(See page EM±4)

P23118Drain Plug Transfer
B07969
Differential
Front
RearDrain plug
Drain plug
B07952Drain Plug
MA0099
OK if coolOK if hot
Add if coolAdd if hot
± MAINTENANCECHASSIS
MA±9
56 Author: Date:
2005 SEQUOIA (RM1146U)
8. REPLACE TRANSFER AND DIFFERENTIAL OIL
(a) Transfer:
Remove the transfer cover.
(b) Remove the drain plug and drain the oil.
(c) Reinstall the drain plug securely.
(d) Add new oil until it reaches the bottom of the filler hole.
Transfer oil: See page TR±4
Front differential oil: See page SA-38
Rear differential oil: See page SA±129
9. REPLACE AUTOMATIC TRANSMISSION FLUID
(a) Remove the drain plug and drain the fluid.
(b) Reinstall the drain plug securely.
(c) With the engine OFF, add new fluid through the dipstick
tube.
Transmission fluid (A/T): See page DI±524
(d) Start the engine and shift the selector into all positions
from ºPº through ºLº and then shift into ºPº.
(e) With the engine idling, check the fluid level.
Add fluid up to the ºCOOLº level on the dipstick.
(f) Check that the fluid level is in the ºHOTº range at the nor-
mal operating temperature (70 ± 80°C or 158 ± 176°F)
and add as necessary.
NOTICE:
Do not overfill.
10. RECOAT FRONT WHEEL BEARINGS AND THRUST
BUSH
(a) Recoat the front wheel bearing with grease (See page
SA±28).

B02100
± MAINTENANCECHASSIS
MA±11
58 Author: Date:
2005 SEQUOIA (RM1146U)

Leaf spring U±bolt mounting nuts
Torque: 133 N´m (1,350 kgf´cm, 98 ft´lbf )
(b) Under Severe Conditions:
In addition to the above maintenance items, check for
loose or missing bolts and nuts on the following.

Steering system

Drive train

Suspension system

Fuel tank mounts

Engine mounts, etc.
14. FINAL INSPECTION
(a) Check operation of body parts:

Hood:

Auxiliary catch operates properly

Hood locks securely when closed

Doors:

Door locks operate properly

Doors close properly

Seats:

Seat adjusts easily and locks securely in any
positions

Seat backs lock securely at any angle

Fold±down seat backs lock securely
(b) Road test:

Engine and chassis parts do not have abnormal
noises.

Vehicle does not wander or pull to one side.

Brakes work properly and do not drag.
(c) Be sure to deliver a clean vehicle and especially check:

Steering wheel

Shift lever knob

All switch knobs

Door handles

Seats

PP42W±01
± PREPARATIONENGINE MECHANICAL
PP±3
61 Author: Date:
2005 SEQUOIA (RM1146U)
ENGINE MECHANICAL
SST (Special Service Tools)
09201±01055Valve Guide Bushing Remover & Re
placer 5.5
09201±41020Valve Stem Oil Seal Replacer
09202±70020Valve Spring Compressor
(09202±00010)Attachment
09213±70011Crankshaft Pully Holding Tool
(90105±08076)Bolt
(90119±08216)Bolt
09222±30010Connecting Rod Bushing Remover
& Replacer
09223±46011Crankshaft Front Oil Seal
ReplacerCrankshaft pulley
Crankshaft timing pulley
09223±56010Crankshaft Rear Oil Seal
Replacer
09330±00021Companion Flange Holding ToolCrankshaft pulley
09843±18030Tacho±pulse Pickup Wire No.2