engine GMC SAVANA 1997 Owner's Manual

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.
Daytime Running Lamps Indicator Light
You may have this light on
the instrument panel. It will
light whenever the DRL are
on, It is also a reminder to
turn on your headlamps
when driving at night. For
more details about DRL, see
“Headlamps and Vehicle
Lighting” in this section.
Malfunction Indicator Lamp (Service
Engine Soon Light) (Gasoline Engine)
Your vehicle is equipped
with a computer which
monitors operation of the
fuel, ignition and emission
SERVICE control systems.
ENGINE SOON
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. (In Canada, OBD
I1 is replaced by
Enhanced Diagnostics.) 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.
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If the Light Is Flashing
I 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 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:
0 Light Flashing -- A misfire condition has been
detected. A misfire increases vehicle emissions and
may damage the emission control system on your
vehicle. Dealer or qualified service center diagnosis
and service is required.
Light On Steady -- An emission control system
malfunction has been detected on your vehicle.
Dealer or qualified service center diagnosis and
service may be required. The
following may prevent more serious damage to
your vehicle:
Reducing vehicle speed.
Avoiding hard accelerations.
0 Avoiding steep uphill grades.
If you are towing a trailer, reduce the amount of
cargo being hauled as soon as it is possible.
If the light stops flashing and remains on steady, see “If
the Light Is On Steady” following.
If the light continues to flash, when it is safe to do
so,
stop the vehicle. Find a safe place to park your vehicle.
Turn the key
off, wait at least 10 seconds and restart the
engine. If the light remains
on steady, see “If the Light
Is On Steady” following. If the light is still flashing,
follow the previous steps, and drive the vehicle to your
dealer or qualified service center for service.
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If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you just drive through a deep puddle of water?
If
so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries
out. A few driving trips should turn the light off.
Are you low on fuel?
As your engine starts to run out of fuel, your engine may
not run as efficiently as designed since small amounts of
air are sucked into
the fuel line causing a misfire. The
system can detect this. Adding fuel should correct this
condition.
Make sure to install the fuel cap properly. It
will take a few driving trips to turn the light off.
Have you recently changed brands
of fuel?
If so, be sure to fuel your vehicle with quality fuel (see
“Fuel” in the Index). Poor fuel quality will cause your
engine not to
run as efficiently as designed. You may
notice this as stalling after start-up, stalling when you
put the vehicle into gear, misfiring,’hesitation on
acceleration or stumbling
on acceleration. (These
conditions may go away once the engine is warmed up.)
This will be detected by the system and cause the light
to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at least one
full tank of the proper fuel to turn the light off.
If none of the above steps have made the light
turn off,
have your dealer or qualified service center check the
vehicle. Your dealer has the proper test equipment and
diagnostic tools to fix any mechanical or electrical
problems
that may have developed.
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Oil Pressure Gage
The oil pressure gage
shows the engine oil
pressure in psi (pounds
per square inch) when
the
engine is running. Canadian
vehicles indicate pressure
in
kPa (kilopascals).
Oil pressure may vary
with engine speed, outside
temperature and oil viscosity, but readings above the
low pressure zone indicate the normal operating range.
A reading in the low pressure zone may be caused by a
dangerously low oil level or other problem causing
low
oil pressure. Check your oil as soon as possible.
A CAUTION:
Don't keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches fire. You or others could be burned.
Check your oil as
soon as possible and have your
vehicle serviced.
I NOTICE: I
Damage to your engine from neglected oil
problems can be costly and is not covered by
your warranty.
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Check Gages Light Fuel Gage
CHECK GAGES
The CHECK GAGES light
will come on briefly when
you are starting the engine.
*
\\'
E-
UNLEADED
FUEL
ONLY
'
The fuel gage, when the
ignition is on, tells you
about how much fuel you
have
left in your tank.
If the light comes on and stays on while you are driving,
check your coolant temperature and engine
oil pressure
gages to see if they are in the warning zones. The gage
will first indicate EMPTY (E) before
you
are out
of fuel, and you should get more fuel as soon
as possible.
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Listed are four situations you may experience with your
fuel gage:
At the gas station, the fuel pump shuts off before the
gage reads FULL (F).
0 It takes a little more or less fuel to fill up than the
fuel gage indicated. For example, the gage may have
indicated the tank was half full, but
it actually took a
little more or less than half the tank’s capacity to fill
the tank.
The gage moves a little when you turn a corner or
speed up.
The gage doesn’t go back to EMPTY (E) when you
None of these indicate a problem with the fuel gage.
turn off
the ignition.
Engine Coolant Temperature Gage
W
TEMP
This gage shows the engine
coolant temperature. If the
gage pointer moves into
the red area your engine is
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.
In “Problems on the Road,” this manual shows what to
do. See “Engine Overheating” in the Index.
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Voltmeter
When your engine is not
running, but the ignition is
on (in the RUN position),
this gage shows your
battery’s state of charge in
DC volts.
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 when 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.
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 km/h)
governed speed.
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Air Conditioning Heating
Before using your vehicle’s air conditioning, open the
windows to clear the vehicle of hot air. This reduces the
time it takes for your vehicle to cool down. Then keep
your windows closed for the air conditioner to work at
its best.
You can use
MAX A/C with the temperature knob in the
blue area, when it’s really hot outside and you need to
cool the inside air quickly.
MAX A/C lets in only a little
air from
the outside.
If you first use
MAX A/C, you can then use A/C with
the temperature knob in the blue area, as soon as the
vehicle has cooled down,
so outside air will be going
through your vehicle.
If your vehicle has rear air conditioning, setting it on
LO may enhance front A/C performance by allowing
trapped refrigerant in rear lines
to circulate.
When the air conditioning, DEFROST
or BLEND is on,
you may notice
a slight increase or decrease in engine
speed, due to compressor operation. This
is normal
because the system is designed
to cycle the compressor
on and off to keep the desired temperature. On cold
days, use
HEATER with the temperature knob
in the red area. Outside air will be brought in through
the
floor outlets. The heater works best if you keep your
windows closed while using it.
If you use the optional engine coolant heater before
starting your engine, your heating system will produce
warmer air faster to heat the passenger compartment in
cold weather. See “Engine Coolant Heater” in the Index.
Ventilation Tips
Keep the hood and front air inlet free of ice, snow,
or any other obstruction (such as leaves). The heater
and defroster will work far better, reducing the
chance of fogging the inside of your windows.
When you enter a vehicle in cold weather, turn the
blower fan to
HI for a few moments before driving
off. This helps clear the intake ducts of snow and
moisture, and reduces the chance of fogging the
inside of your windows.
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Keep the air path under the front seats clear of
objects. This helps air to circulate throughout
your vehicle.
Your vehicle has air vents in the center and on the sides
of your instrument panel.
You can move the vents from side to side or up and
down to direct the flow
of air, or close the vents
altogether. When
you close a vent, it will increase the
flow
of air coming out of any vents that are open.
Audio Systems
Your Delco@ audio system has been designed to operate
easily and give years
of listening pleasure. You will get
the most enjoyment out of it if
you acquaint yourself
with it first. Find out what your Delco system can do
and how to operate all its controls,
to be sure you’re
getting the most out
of the advanced engineering that
went into it.
Setting the Clock for Systems without
Automatic
Tone Control
Press SET. Within five seconds, press and hold the
SEEK right arrow until the correct minute appears on
the display. Press and hold the
SEEK left arrow until
the correct hour appears on the display.
Setting the Clock for Systems with
Automatic
Tone Control
Press and hold HR until the correct hour appears on
the display. Press and hold MIN until the correct
minute appears
on the display. To display the clock
with the ignition off, press
RECALL or HFUMIN and
the time
will be displayed for a few seconds. There is
an initial two-second delay before the clock goes into
the time-set mode.
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Tips About Your Audio System
Hearing damage from loud noise is almost undetectable
until it is too late. Your hearing can adapt to higher
volumes
of sound. Sound that seems normal can be loud
and harmful to your hearing. Take precautions by
adjusting the volume control on your radio to a safe
sound level before your hearing adapts to it.
To help avoid hearing loss or damage:
Adjust the volume control to the lowest setting.
Increase volume slowly until you hear comfortably
and clearly.
NOTICE:
Before you add any sound equipment to your
vehicle
-- like a tape player, CB radio, mobile
telephone or two-way radio
-- be sure you
can add what you want.
If you can, it’s very
important to do
it properly. Added sound
equipment may interfere with the operation
of your vehicle’s engine, Delco radio or
other systems, and even damage them. Your
vehicle’s systems may interfere with the
operation of sound equipment that has
been
added improperly.
So, before adding sound equipment, check with
your dealer and be sure to check Federal rules
covering mobile radio and telephone units.
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