1998 TOYOTA T100 Engine manual

T100(U)65
Part 1
OPERATION OF
INSTRUMENTS AND
CONTROLS
Chapter 1
−6
Ignition switch,
Transmission
and Parking brake
Ignition switch with steering lock
Automatic transmission
Manual transmission
Four −wheel drive system
P ar k ing br ak e
Cruise control
Clutch start cancel switch
”START”—Starter motor on. The key
will return to the ”ON” position when
released.
For starting tips, see Part 3.
”ON”—Engine on and all accessories on.
This is the normal driving position.
”ACC”—Accessories such as the radio
operate, but the engine is off.
If you leave the key in the ”ACC” or
”LOCK” position and open the driver’s
door, a buzzer will remind you to remove
the key.
”LOCK”—Engine is off and the steering
wheel is locked. The key can be re-
moved only at this position. On vehicles with a manual transmission,
you must push in the key to turn the key
to the ”LOCK” position.
On vehicles with an automatic transmis-
sion, the selector lever must be put in the
”P” position before turning the key to the
”LOCK” position.
When starting the engine, the key may
seem stuck at the ”LOCK” position. To
free it, first be sure the key is pushed all
the way in, and then rock the steering
wheel slightly while turning the key gently.CAUTION
For manual transmission:
Never remove the key when the ve-
hicle is moving, as this will lock the
steering wheel and result in loss of
steering control.
NOTICE
Do not leave the key in the ”ON”
position if the engine is not running.
The battery will discharge and the
ignition could be damaged.
Ignition switch with steering
lock

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70
Manual transmission
The shift pattern is conventional as
shown above.
Press the clutch pedal down fully while
shifting, and then release it slowly. Do not
rest your foot on the pedal while driving,
because it will cause clutch trouble. And
do not use the clutch to hold the vehicle
when stopped on an uphill grade–use the
parking brake.
Recommended shifting speeds
The transmission is fully synchronized and
upshifting or downshifting is easy.
For the best compromise between fuel
economy and vehicle performance, you
should upshift or downshift at the following
speeds:
3RZ
−FE engine
Low altitude
—1219 m (4000 ft) or lower
gear km/h (mph)
1 to 2 or 2 to 1 24/16
1
(15/10
1
)
2 to 3 or 3 to 2 43/30
1
(27/19
1
)
3 to 4 or 4 to 3 64/48
1
(40/30
1
)
4 to 5 or 5 to 4 74 (46)
High altitude
—Higher than 1219 m (4000 ft)
Upshifting
gear km/h (mph)
1 to 2 24 (15)
2 to 3 43/58
2
(27/36
2
)
3 to 4 64/72
2
(40/45
2
)
4 to 5 74/85
2
(46/53
2
)
Downshifting
gear km/h (mph)
2 to 1 24 (15)
3 to 2 43 (27)
4 to 3 64 (40)
5 to 4 74 (46)
1:For constant-speed cruise or constant −
speed cruise after deceleration.
2:Applicable under heavy acceleration
conditions. 5VZ
−FE engine
gear km/h (mph)
1 to 2 or 2 to 1 24 (15)
2 to 3 or 3 to 2 40 (25)
3 to 4 or 4 to 3 64 (40)
4 to 5 or 5 to 4 72 (45)
Upshifting too soon or downshifting too
late will cause lugging, and possibly ping-
ing. Regularly revving the engine to maxi-
mum speed in each gear will cause ex-
cessive engine wear and high fuel
consumption.
Maximum allowable speeds
To get on a highway or to pass slower
traffic, maximum acceleration may be nec-
essary. Make sure you observe the follow-
ing maximum allowable speeds in each
gear:
Two-wheel drive models 1-ton models
gear km/h (mph)14 0(2 5 )
27 5(4 7 )
3 115 (71)
4 165(103)

T100(U)75
CAUTION
To avoid accidental cruise control en-
gagement, keep the ”CRUISE ON-
OFF” switch off when not using the
cruise control.
SETTING AT A DESIRED SPEED
On vehicles with automatic transmission,
the transmission must be in ”D” before
you set the cruise control speed.
Bring your vehicle to the desired speed,
push the lever down in the ”SET/COAST”
direction and release it. This sets the ve-
hicle at that speed. If the speed is not
satisfactory, tap the lever up for a faster
speed, or tap it down for a slower speed.
Each tap changes the set speed by 1.6
km/h (1.0 mph). You can now take your
foot off the accelerator pedal.
If you need acceleration—for example,
when passing–depress the accelerator
pedal enough for the vehicle to exceed
the set speed. When you release it, the
vehicle will return to the speed set prior
to the acceleration.
CAUTION
For manual transmission:
While driving with the cruise control
on, do not shift to neutral without
depressing the clutch pedal, as this
may cause engine racing or overrev-
ving.
CANCELLING THE PRESET SPEED
You can cancel the preset speed by:
a. Pulling the control lever in the ”CAN-CEL” direction and release it.
b. Depressing the brake pedal.
c. Depressing the clutch pedal (manual transmission).
If the vehicle speed falls below about 40
km/h (25 mph), the preset speed will auto-
matically cancel out.
If the vehicle speed drops 16 km/h (10
mph) below the preset speed, the preset
speed will also automatically cancel out.
If the preset speed automatically cancels
out other than for the above cases, have
your vehicle checked by your Toyota deal-
er at the earliest opportunity. RESETTING AT A FASTER SPEED
Press the control lever upward in the
”RES/ACC” direction and hold it. Release
the lever when the desired speed is at-
tained. While the lever is held upward, the
vehicle will gradually gain speed.
However, a faster way to reset is to ac-
celerate the vehicle and then press the
control lever downward in the ”SET/
COAST” direction.
RESETTING AT A SLOWER SPEED
Press the control lever downward in the
”SET/COAST” direction and hold it. Re-
lease the lever when the desired speed is
attained. While the lever is held, the ve-
hicle speed will gradually decrease.
However, a faster way to reset is to de-
press the brake pedal and then press the
control lever downward in the ”SET/
COAST” direction.
On vehicles with automatic transmission,
even if you turn off the overdrive switch
with the cruise control on, engine braking
will not be applied because the cruise
control is not cancelled. To decrease the
vehicle speed, reset to a slower speed
with the cruise control lever or depress
the brake pedal. If you use the brake
pedal, cruise control is cancelled.

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76
RESUMING THE PRESET SPEED
If the preset speed is cancelled by pulling
the control lever or by depressing the
brake pedal or clutch pedal, pushing the
lever up in the ”RES/ACC” direction will
restore the speed set prior to cancellation.
However, once the vehicle speed falls be-
low about 40 km/h (25 mph), the preset
speed will not be resumed.
CRUISE CONTROL FAILURE WARNING
If the ”CRUISE” indicator light in the
instrument cluster flashes when using the
cruise control, there is some trouble in the
cruise control system. Contact your Toyota
dealer and have your vehicle inspected.
To crank the engine without depressing
the clutch pedal, push the switch with
the ignition on.
The switch stays on as long as the igni-
tion is on. And it will automatically turn off
when the ignition is off.
This switch cancels the clutch start sys-
tem, which is designed to keep the starter
motor from operating if the clutch pedal is
not depressed all the way down.
The switch allows the vehicle to be driven
out of difficult situations by cranking the
engine with the clutch engaged.
Never use the switch for normal engine
starting. Be sure to follow the starting
procedure instructed in ”How to start the
engine” in Part 3.
Clutch start cancel switch
(four-wheel drive models
with manual transmission)

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11 6
When driving off-road or in rugged
terrain, do not drive at excessive
speeds, jump the vehicle, or strike
objects, etc. This may cause loss of
control or vehicle rollover. You are
also risking expensive damage to
your vehicle’s suspension and chas-
sis.
Break-in period
Drive gently and avoid high speeds.
Your vehicle does not need an elaborate
break-in. But following a few simple tips
for the first 1600 km (1000 miles) can add
to the future economy and long life of
your vehicle:
Do not drive over 88 km/h (55 mph).
Run the engine at moderate speed be-
tween 2000 and 4000 rpm.
Avoid full-throttle starts.
Try to avoid hard stops during the first
300 km (200 miles).
Do not drive slowly with the manual
transmission in a high gear.
Do not drive for a long time at any
single speed, either fast or slow.
Do not tow a trailer during the first 800
km (500 miles). Fuel
Selecting the proper fuel is essential
for satisfactory engine performance.
Engine damage caused by use of improp-
er fuels is not covered under Toyota’s new
vehicle warranty.
FUEL TYPE
Use only unleaded gasoline.
To help prevent gas station mixups, ve-
hicles designed for use with unleaded gas-
oline have a new smaller fuel tank open-
ing. The special nozzle on pumps with
unleaded fuel will fit it, but the larger
standard nozzle on pumps with leaded gas
will not.
At a minimum, the gasoline you use
should meet specifications of ASTM
D4814 in the U.S.A. and CGSB 3.5
−M93
in Canada.
NOTICE
Do not use leaded gasoline. Use of
leaded gasoline will cause the three-
way catalytic converter to lose its ef-
fectiveness and the emission control
system to function improperly. Also,
this can increase maintenance costs.

T100(U)11 9
CAUTION
Keep people and combustible mate-
rials away from the exhaust pipe
while the engine is running. The
exhaust gas is very hot.
Do not idle or park your vehicle
over anything that might burn easi-
ly such as grass, leaves, paper or
rags.
NOTICE
A large amount of unburned gases
flowing into the three-way catalytic
converter may cause it to overheat
and create a fire hazard. To prevent
this and other damage, observe the
following precautions: Use only unleaded gasoline.
Do not drive with an extremely low
fuel level; running out of fuel could
cause the engine to misfire, creat-
ing an excessive load on the three-
way catalytic converter.
Do not allow the engine to run at
idle speed for more than 20 min-
utes.
Avoid racing the engine.
Do not push-start or pull-start your
vehicle.
Do not turn off the ignition while
the vehicle is moving.
Keep your engine in good running
order. Malfunctions in the engine
electrical system, electronic ignition
system/distributor ignition system
or fuel system could cause an ex-
tremely high three-way catalytic
converter temperature.
If the engine becomes difficult to
start or stalls frequently, take your
vehicle in for a check-up as soon
as possible. Remember, your Toyota
dealer knows your vehicle and its
three-way catalytic converter system
best.
To ensure that the three-way cata-
lytic converter and the entire emis-
sion control system operate proper-
ly, your vehicle must receive the
periodic inspections required by the
Toyota Maintenance Schedule. For
scheduled maintenance information,
refer to the separate ”Owner’s
Manual Supplement/Maintenance
Schedule”.

T100(U)129
Part 3
STARTING AND
DRIVING
Before starting the engine
How to start the engine
Tips for driving in various
conditions
Off
−road driving precautions
Winter driving tips
Tr ailer towing
How to save fuel and make your
vehicle last longer, too
Before starting the engine
1. Check the area around the vehicle be- fore entering it.
2. Adjust seat position, seatback angle, head restraint height and steering
wheel angle.
3. Adjust inside and outside rear view mirrors.
4. Lock all doors.
5. Fasten seat belts. 1. Apply the parking brake firmly.
2. Turn off unnecessary lights and acces-
sories.
3. Manual transmission:
Press the clutch
pedal to the floor and shift the trans-
mission into neutral. Hold the clutch
pedal to the floor until the engine is
started. A starter safety device will pre-
vent the starter from operating if the
clutch pedal is not fully depressed.
Automatic transmission: Put the se-
lector lever in ”P”. If you need to re-
start the engine while the vehicle is
moving, put the selector lever in ”N”.
A starter safety device will prevent the
starter from operating if the selector
lever is in any drive position.
4. Automatic transmission only : De-
press the brake pedal and hold it to
the floor until driving off.
How to start the engine—
(a) Before cranking

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130
(b) Starting the engine
Before starting the engine, be sure to fol-
low the instructions in ”(a) Before crank-
ing”.
Normal starting procedure
The multiport fuel injection system/sequen-
tial multiport fuel injection system in your
engine automatically controls the proper
air-fuel mixture for starting. You can start
a cold or hot engine as follows:
1. With your foot off the accelerator ped- al, crank the engine by turning the key
to ”START”. Release it when the en-
gine starts.
2. After the engine runs for about 10 se- conds, you are ready to drive.
If the weather is below freezing, let the
engine warm up for a few minutes before
driving.
If the engine stalls...
Simply restart it, using the correct proce-
dure given in normal starting.
If the engine will not start—
See ”If your vehicle will not start” in Part 4.
NOTICE
Do not crank for more than 30 se-
conds at a time. This may overheat
the starter and wiring systems.
Do not race a cold engine.
If the engine becomes difficult to
start or stalls frequently, have the
engine checked immediately.
Always slow down in gusty crosswinds.
This will allow you much better control.
Drive slowly onto curbs and, if pos-
sible, at a right angle. Avoid driving
onto high, sharp −edged objects and
other road hazards. Failure to do so
can lead to severe tire damage result-
ing in tire bursts.
When parking on a hill, turn the front
wheels until they touch the curb so
that the vehicle will not roll. Apply the
parking brake, and place the transmis-
sion in ”P” (automatic) or in first or
reverse (manual). If necessary, block
the wheels.
Washing your vehicle or driving through
deep water may get the brakes wet. To
see whether they are wet, check that
there is no traffic near you, and then
press the pedal lightly. If you do not
feel a normal braking force, the brakes
are probably wet. To dry them, drive
the vehicle cautiously while lightly
pressing the brake pedal with the park-
ing brake pulled. If they still do not
work safely, pull to the side of the road
and call a Toyota dealer for assistance.
Tips for driving
in various conditions