1998 GMC SAVANA engine

A CAUTION:
It can be dan
swing-out windows or rear door(s) open because
carbon monoxide (CO) gas can come into your
vehicle. You can’t see or smell
CO. It can cause
unconsciousness and even death.
If you must drive with the rear swing-out
windows or rear door(s) open or
if electrical
wiring or other cable connections must pass
through the seal between the body and the rear
swing-out windows or rear door(s):
0 Make sure all windows are shut.
CAUTION: (Continued)
’ CAUTION: (Continued: -
0 Thrn the fan on your heating or cooling
system to its highest speed with the setting
on VENT, HEAT, BLEND or DEF.
Additionally, on vehicles with heatingair
conditioning systems,
NORM A/C or
BI-LEVEL A/C can be used. That will
force outside
air into your vehicle. See
“Comfort Controls” in the Index.
0 If you have air outlets on or under the
instrument panel, open them all the
way.
See “Engine Exhaust” in the Index.
Horn
Press the horn symbol in the middle of the steering
wheel to sound the horn.
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The DRL system will make your headlamps come on at
a reduced brightness when:
The ignition is on,
The headlamp switch is off, and
The parking brake is released.
When the DRL are
on, only your headlamps will be on.
The taillamps, sidemarker and other lamps won’t be on.
Your instrument panel won’t be lit up either.
When it begins
to get dark, your DRL indicator light is
a reminder
to turn your headlamp switch on. The other
lamps that come
on with your headlamps will also
come
on.
When you turn off the headlamp switch, the regular
lamps will go off, and your headlamps will change to
the reduced brightness of
DRL.
To idle your vehicle with the engine on and the DRL off,
set the parking brake. The DRL will stay off until you
release the parking brake.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Center High-Mounted Stoplamp
Your vehicle’s center high-mounted stoplamp is located
above the rear doors at the center of the vehicle.
If items are loaded on the roof of the vehicle, as in a
luggage carrier, care should be taken
not to block or
damage the center high-mounted stoplamp unit.
If you tow a trailer that is equipped with provisions for a
center high-mounted stoplamp, see your
GM dealer for
instructions
on how to make it operate with your
vehicle’s electrical system.
As with any electrical system
modification, have the work performed by a qualified
electrical service person.
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Underhood Reel Lamp (Option)
If you have an underhood reel lamp, it is located on the
passenger side
of the engine compartment. The lamp can
be switched
on without unreeling the cord. Also, you
can use
it as a flashlight.
To use the lamp as a flashlight, pull down on the lever
located under the lamp, unlocking the lamp and pull the
lamp out. The cord will unreel as you
pull the lamp.
When
you are done using the lamp, reel the cord back
into the housing by turning the handle.
Then, slide the lamp into the holder and press the
lever
marked PUSH at the bottom of the holder to lock into
the slot.
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Electronic Road-Speed Governor
(Gasoline Engines) (Option)
This optional system automatically controls vehicle top
speed. The system controller receives
a signal from the
vehicle speed sensor and reduces power when the
vehicle speed reaches the maximum
65 mph (105 kdh)
governed speed.
Warning Lights, Gages
and Indicators
This part describes the warning lights and gages that
may be on your vehicle. The pictures will help you
locate them.
Warning lights and gages can signal that something is
wrong before it becomes serious enough to cause an
expensive repair or replacement. Paying attention to
your warning lights and gages could also save you or
others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle’s functions. As you
will see in the details
on the next few pages, some
warning lights come
on briefly when you start the
engine just to let you know they’re working.
If you are
familiar
with this section, you should not be alarmed
when this happens. Gages
can indicate when there may be or is
a problem
with one of your vehicle’s functions. Often gages and
warning lights work together to let you know when
there’s
a problem with your vehicle.
When one of the warning lights comes on and
stays on
when you are driving, or when one of the gages shows
there may be a problem, check the section that tells you
what to do about it. Please follow this manual’s advice.
Waiting to do repairs can be costly
-- and even
dangerous.
So please get to know your warning lights
and gages. They’re
a big help.
Safety Belt Reminder Light
When the key is turned to RUN or START, a tone will
come on for about eight seconds to remind people to
fasten their safety belts, unless the driver’s safety belt is
already buckled.
The safety belt light will
also come on and stay on
for about
20 seconds, then it
will flash for about
5 5 seconds.
If the driver’s belt is already buckled, neither the tone
nor the light will come on.
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Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows AIR
BAG. The system checks the
air bag’s electrical system for malfunctions. The light
tells you if there
is an electrical problem. The system
check includes the air bag sensor, the air bag modules,
the wiring and the crash sensing and diagnostic module.
For more information
on the air bag system, see “Air
Bag” in the Index.
AIR
This light will come on
when you start your engine,
and it will flash for a few
seconds. Then the light should go
out. This means
the system
is ready.
If the air bag readiness light stays on after you start the
engine or comes on when you are driving, your air bag
system may not work properly. Have your vehicle
serviced right away. The
air bag readiness light should flash for a few
seconds when
you turn the ignition key to RUN. If the
light doesn’t come
on then, have it fixed so it will be
ready
to warn you if there is a problem.
Charging System Light
(CJ
This light should come on
briefly when you turn on the
ignition, before starting the
engine, as a check to show
you it is working.
After the engine starts, the light should
go out. If it stays
on or comes on while you are driving, you may have a
problem with your charging system. It could indicate a
problem with the alternator drive belt, or some other
charging system problem. Have
it checked right away.
Driving while this light is on could drain your battery.
If you must drive a short distance with this light
on, it
helps
to turn off all your accessories, such as the radio
and air conditioner.
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Voltmeter
When your engine is not
on (in the
RUN position),
this gage shows your
DC volts.
I I / /I, running, but the ignition is
9 19 battery's state of charge in
VOLTS I
W
When the engine is running, the gage shows the
condition
of the charging system. Readings between the
low and high warning zones indicate the normal
operating range. Readings
in the low warning zone may occur wnen a
large number
of electrical accessories are operating in
the vehicle and the engine is left at an idle for
an
extended period. This condition is normal since the
charging system is not able to provide full power at
engine idle.
As engine speeds are increased, this
condition should correct itself as higher engine speeds
allow the charging system to create maximum power.
You can only drive for
a short time with the reading in
either warning zone.
If you must drive, turn off all
unnecessary accessories.
Readings in either warning zone indicate
a possible
problem in the electrical system. Have the vehicle
serviced as soon as possible.
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Anti-Lock Brake System Warning Light
ANTI -
LOCK
United States Canada
With
the anti-lock brake system, this light will come on
when you start your engine and may stay on for several
seconds. That’s normal.
If the light stays on, or comes
on when you’re driving,
your vehicle needs service. If the regular brake system
warning light isn’t
on, you still have brakes, but you
don’t have anti-lock brakes. If the regular brake system
warning light is also
on, you don’t have anti-lock brakes
and there’s a problem with your regular brakes. See
“Brake System Warning Light” earlier in this section.
The anti-lock brake system warning light should come
on briefly when
you turn the ignition key to RUN. If the
light doesn’t come on then, have it fixed
so it will be
ready
to warn you if there is a problem.
Engine Coolant Temperature Gage
This gage shows the engine
gage pointer moves into
the red area your engine is
coolant temperature.
If the
260 too
hot!
It means that your engine coolant has overheated.
If
you have been operating your vehicle under normal
operating conditions,
you should pull off the road, stop
your vehicle, and turn off the engine as soon as possible.
The “Problems on the Road’’ section of this
manual shows what
to do. See “Engine Overheating”
in the Index.
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Malfunction Indicator Lamp (Service
Engine Soon Light) (Gasoline Engine)
I I Your vehicle is equipped
SERVICE
ENGINE
with a computer which
monitors operation of the
fuel, ignition and emission
SOON control systems.
NOTICE:
If you keep driving your vehicle with this light
on, after a while, your emission controls may not
work as well, your fuel economy may not be as
good and your engine may not run as smoothly.
This could lead to costly repairs that may not be
covered by your warranty.
This system is called OBD I1 (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for the life
of the vehicle, helping to produce a cleaner
environment. The SERVICE ENGINE
SOON light
comes on to indicate that there is a problem and service
is required. Malfunctions often will be indicated by the
system before any problem is apparent. This may
prevent more serious damage to your vehicle. This
system is also designed to assist your service technician
in correctly diagnosing any malfunction. This
light should come on,
as a check to show you it is
working, when the ignition is on and the engine is not
running. If the light doesn’t come
on, have it repaired.
This light will also come on during a malfunction in one
of two ways:
Light Flashing -- A misfire condition has been
detected.
A misfire increases vehicle emissions and
may damage the emission control system on your
vehicle.
GM or qualified service center diagnosis
and service may be required.
0 Light On Steady -- An emission control system
malfunction has been detected
on your vehicle. GM
or qualified service center diagnosis and service may
be required.
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