engine TOYOTA CAMRY CNG 1999 User Guide

72
NOTICE
Be careful not to overrev the en-
gine. Watch the tachometer to keep
engine rpm from going into the red
zone. The approximate maximum al-
lowable speed for each position is
given below for your reference:
“2” 119 km/h (74 mph). . . . . . . . . .
“ L” 66 km/ h ( 41 mph). . . . . . . . . .
Do not continue hill climbing or
hard towing for a long time in the
“2” or “L” position. This may cause
severe automatic transmission dam-
age from overheating. To prevent
such damage, “D” position should
be used in hill climbing or hard
towing.
(d) Backing up
1. Bring the vehicle to a complete stop.
2. With the brake pedal held down with
your foot, shift the selector lever to the
“R” position.
NOTICE
Never shift into reverse while the ve-
hicle is moving.
(e) Parking
1. Bring the vehicle to a complete stop.
2. Pull the parking brake lever up fully to
securely apply the parking brake.
3. With the brake pedal pressed down,
shift the selector lever to the “P” posi-
tion.
CAUTION
While the vehicle is moving, never
attempt to move the selector lever
into “P” position under any circum-
stances. Serious mechanical damage
and loss of vehicle control may re-
sult.
(f) Good driving practice
If the transmission repeatedly shifts up
and down between the third gear and
overdrive when climbing a gentle slope,
the overdrive switch should be turned
off. Be sure to turn the switch on im-
mediately afterward.
When towing a trailer, in order to main-
tain engine braking efficiency, do not
use overdrive.
CAUTION
Always keep your foot on the brake
pedal while stopped with the engine
running. This prevents the vehicle
from creeping.
NOTICE
Do not hold the vehicle on an up-
grade with the accelerator pedal. It
can cause the transmission to over-
heat. Always use the brake pedal or
parking brake.

73
(g) Rocking your vehicle if stuck
CAUTION
If your vehicle becomes stuck in
snow, mud, sand, etc., then you may
attempt to rock your vehicle free by
moving it forward and backward. Do
not attempt this procedure if people
or objects are anywhere near the ve-
hicle. During the rocking operation
the vehicle may suddenly move for-
ward or backward as it becomes un-
stuck, causing injury or damage to
nearby people or objects.
NOTICE
If you rock your vehicle, observe the
following precautions to prevent dam-
age to the transmission and other
parts.
Do not depress the accelerator ped-
al while shifting the selector lever
or before the transmission is com-
pletely shifted to forward or reverse
gear.
Do not race the engine and avoid
spinning the wheels.
If your vehicle remains stuck after
rocking the vehicle several times,
consider other ways such as tow-
ing.
(h) If you cannot shift the selector le-
ver out of “P” position
If you cannot shift the selector lever from
“P” position even though the brake pedal
is depressed, use the shift lock override
button. For instructions, see “If you cannot
shift automatic transmission selector lever”
in Part 4.
Parking brake
When parking, firmly apply the parking
brake to avoid inadvertent creeping.
To set: Pull up the lever. For better hold-
ing power, first depress the brake pedal
and hold it while setting the parking
brake.
To release: Pull up the lever slightly,
press the thumb button, and lower.
To remind you that the parking brake is
set, the parking brake reminder light in
the instrument panel remains on until you
release the parking brake.

74
CAUTION
Before driving, be sure the parking
brake is fully released and the park-
ing brake reminder light is off.
Cruise control
The cruise control allows you to cruise
the vehicle at a desired speed over 40
km/h (25 mph) even with your foot off
the accelerator pedal.
Your cruising speed can be maintained up
or down grades within the limits of engine
performance, although a slight speed
change may occur when driving up or
down the grades. On steeper hills, a
greater speed change will occur so it is
better to drive without the cruise control.
CAUTION
To help maintain maximum control
of your vehicle, do not use the
cruise control when driving in
heavy or varying traffic, or on slip-
pery (rainy, icy or snow−covered) or
winding roads.
Avoid vehicle speed increases when
driving downhill. If the vehicle
speed is too fast in relation to the
cruise control set speed, cancel the
cruise control then downshift the
transmission to use engine braking
to slow down.
TURNING ON THE SYSTEM
To operate the cruise control, press the
“CRUISE ON·OFF” button. This turns the
system on. The indicator light in the
instrument panel shows that you can now
set the vehicle at a desired cruising
speed. Another press will turn the system
completely off.
CAUTION
To avoid accidental cruise control en-
gagement, keep the “CRUISE ON·OFF”
switch off when not using the cruise
control.

75
SETTING AT A DESIRED SPEED
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.
CANCELLING THE PRESET SPEED
You can cancel the preset speed by:
a. Pulling the lever in the “CANCEL” di-
rection and releasing it.
b. Depressing the brake pedal.
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 authorized
Toyota CNG dealer at the earliest opportu-
nity.
RESETTING TO A FASTER SPEED
Push the lever up in the “RES/ACC” direc-
tion and hold it. Release the lever when
the desired speed is attained. While the
lever is held up, the vehicle will gradually
gain speed.However, a faster way to reset is to ac-
celerate the vehicle and then push the
lever down in the “SET/COAST” direction.
RESETTING TO A SLOWER SPEED
Push the lever down in the “SET/COAST”
direction and hold it. Release the lever
when the desired speed is attained. While
the lever is held down, the vehicle speed
will gradually decrease.
However, a faster way to reset is to de-
press the brake pedal and then push the
lever down in the “SET/COAST” direction.
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.
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.

96
Cigarette lighter and ashtrays
Cigarette lighter and front ashtray
Rear ashtray (on some models)
CIGARETTE LIGHTER
To use the cigarette lighter, press it in.
When it becomes heated, it automatical-
ly pops out ready for use.
If the engine is not running, the key must
be in the “ACC” position.
Do not hold the cigarette lighter pressed
in.
Use a Toyota genuine cigarette lighter or
equivalent for replacement.
ASHTRAYS
To use the ashtray, open out.
When finished with your cigarette, thor-
oughly extinguish it in the ashtray to pre-
vent other cigarette butts from catching
fire. After using the ashtray, push it back
in completely.
To remove the ashtray, press down on the
lock spring plate and pull out.
CAUTION
To reduce the chance of injury in
case of an accident or sudden stop
while driving, always push the ash-
tray back in completely after use.
Power outlet
The power outlet is designed for power
supply for car accessories.
The key must be in the “ACC” or “ON”
position for the power outlet to be used.
NOTICE
To prevent the fuse from being
blown, do not use the electricity
over the total vehicle capacity of
12V/120W.
To prevent the battery from being
discharged, do not use the power
outlet longer than necessary when
the engine is not running.

103
Part 2
INFORMATION
BEFORE DRIVING
YOUR TOYOTA
Break−in period
Fuel
Fuel system
Operation in foreign countries
Three−way catalytic converter
Engine exhaust cautions
Facts about engine oil
consumption
Twin ground electrode
platinum−tipped spark plugs
Brake system
Brake pad wear limit indicators
Luggage stowage precautions
Your Toyota’s identification
Theft prevention labels
Suspension and chassis
Types of tires
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
Fuel used for your vehicle is compressed
natural gas (CNG). The main ingredient of
the natural gas is flammable, colorless
methane, which generates lower emissions
compared with a gasoline−engine vehicle.
The natural gas you use for refueling
must meet NFPA−52 and SAE−J1616 stan-
dards.
If you smell natural gas or hear the sound
of leaking fuel while refueling, stop refuel-
ing immediately. If you smell or hear fuel
leaking other than when refueling, shut off
the fuel system. (See “If you suspect the
fuel is leaking” in Part 4.)
CAUTION
Natural gas is flammable and explo-
sive. Take due care to keep away
from fire and sparks at all times.
If you suspect the fuel is leaking
while refueling, stop refueling im-
mediately. If leaking fuel is ignited,
an explosion or fire could occur,
causing death or serious injury.

104
If you smell or hear natural gas
leaking, shut off the fuel system
immediately. If leaking fuel is ig-
nited, an explosion or fire could oc-
cur, causing death or serious injury.
NOTICE
Do not use improper fuel that does
not meet the required standards.
Using improper fuel may affect the
engine performance or cause dam-
age to the emission control system.
If you suspect any abnormality in
the fuel system, have your vehicle
inspected by your authorized Toyota
CNG dealer as soon as possible.
1. Fuel tank
2. Manual shut off valve
Have the fuel system checked and main-
tained by your authorized Toyota CNG
dealer.
—Fuel tank
The fuel tank on your vehicle conforms
to ANSI/AGA NGV−2, NFPA−52 and DOT
NHTSA FMVSS 304 safety standards.
Removal, servicing, discharge of fuel
and disposal of the tank should only be
done by a qualified technician as pre-
scribed by the fuel control regulation of
NFPA−52, and all applicable federal,
state and local regulations.
Have the fuel tank inspected at the
interval listed in the “Scheduled
Maintenance Guide”. The fuel tank also
requires inspection if the vehicle is
involved in a collision or fire hazard.
Warning labels on the fuel tank and the
engine compartment indicate the ser-
vice limit date of the tank. Do not re-
move or paint over the labels.
See instructions on fuel
container for inspection
and service life.
Fuel system—
—Components

105
CAUTION
This tank contains high pressure
flammable natural gas. You must
ensure that the tank is checked and
inspected and properly maintained,
as well as avoid overfilling or dril-
ling holes in it, or damaging it in
any other way because death or se-
rious injury may result.
Do not allow any person other than
a qualified technician to remove
this tank from the vehicle. If residu-
al gas in the tank is not discharged
correctly, static electricity may be
ignited, causing fire or explosion.
Do not leave the fuel tank where
the temperature can exceed 80C
(176F). The tank’s built−in pressure
relief device may open and release
all the fuel from under the floor.
NOTICE
Do not damage the tank. If the tank
is damaged, have it inspected by
your authorized Toyota CNG dealer
as soon as possible.
Do not expose the tank to chlorine,
oxygen or other corrosive liquids.
This tank is intended for use with
compressed natural gas—the fuel
for this vehicle. Do not use it for
any other purpose.
SERVICE PRESSURE:
24800 kPa (3600 psig)
Equivalent gasoline capacity:
43 L (11.4 gal., 9.5 lmp.gal.)
Water volume:
135 L (35.7 gal., 29.7 lmp.gal.)
—Fuel shut off system
If the engine stalls, fuel flow from the tank
is automatically shut off. When restarting
the engine after fuel flow is shut off, turn
the ignition switch to “ACC” or “LOCK”
once and then start it. The fuel flow from
the tank will also be shut off automatically
when an airbag inflates upon collision or
if the piping is disconnected.
CAUTION
If the vehicle is involved in a colli-
sion and there is a chance that there
may be fuel leakage, never restart the
engine. Ignition of leaked natural gas
may cause death or serious injury.
Manual shut off valve
This valve is for manually shutting off
fuel from the tank. It is usually left
open. Use this valve to shut off fuel if
you suspect that the fuel is leaking or
after you have been involved in a colli-
sion.
Refer to “If you suspect the fuel is
leaking” in Part 4 for how to operate the
valve.

106
Operation in foreign countries
If you plan to drive your Toyota in
another country...
First, comply with the vehicle registration
laws.
Second, confirm the availability of the cor-
rect fuel and filling nozzles.
Three−way catalytic converter
The three−way catalytic converter is an
emission control device installed in the
exhaust system.
The purpose is to reduce pollutants in the
exhaust gas.
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 drive, idle or park your ve-
hicle over anything that might burn
easily such as grass, leaves, paper
or rags.

107
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 CNG (Compressed Natural
Gas).
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 autho-
rized Toyota CNG dealer knows
your vehicle and its three−way cata-
lytic 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”.
Engine exhaust cautions
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.