Downloaded from www.Manualslib.com manuals search engine Malfunction Indicator Lamp
(Service Engine Soon
Light)
Your Chevrolet is equipped
with a computer which
monitors operation
of the
SERVICE
fuel, ignition and emission
control systems.
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, which
may prevent more serious damage to your vehicle. This
system is also designed to assist your service technician
in correctly diagnosing any malfunction.
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:
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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.
2-83
Downloaded from www.Manualslib.com manuals search engine If the Light Is Flashing
The following may prevent more serious damage to
your vehicle:
Reduce vehicle speed.
0 Avoid hard accelerations.
0 Avoid steep uphill grades.
If 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. Put your vehicle in PARK (P). 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.
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you just put fuel into your vehicle?
If
so, reinstall the fuel cap, making sure to fully install
the cap. The diagnostic system
can determine if the fuel
cap has been left off or improperly installed. This will
allow fuel
to evaporate into the atmosphere. A few
driving trips should turn the light off.
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.
2-84
Downloaded from www.Manualslib.com manuals search engine 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 this condition, 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.
Engine Oil Pressure Gage
5.7L LT1 Engine 3800 L36 Engine
This gage tells you if there could be a problem with your
engine oil pressure.
The engine oil pressure gage shows the engine oil
pressure in psi (pounds per square inch)
in the United
States, or kPa (kilopascals)
in Canada, when the engine
is running. Oil pressure should be
20 to 80 psi (140 to
550 kPa). On the 3.8L engine, the oil pressure should be
between
20 and 120 psi (140 to 827 kPa). It may vary
with engine speed, outside temperature and oil viscosity,
2-85
Downloaded from www.Manualslib.com manuals search engine but readings above the red area show the normal
operating range. Readings in the red area tell you that
the engine is low on oil,
or that you might have some
other oil problem. See “Engine Oil” in the Index.
-
Don’t keep d ling 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:
Damage to your engine from neglected oil
problems can be costly and is not covered by
your warranty.
Low Oil I.’
LOW OIL
This warning light should
come
on while you are
starting your engine.
If the
light doesn’t
come on, have
it repaired.
If the light stays on after starting your engine, your
engine oil level may be too
low. You may need to add
oil. See “Engine Oil” in the Index.
I NOTICE:
The oil level monitoring system only checks the
oil level when you are starting your engine. It
does not keep monitoring the level once the
engine is running.
Also, the oil level check only
works when the engine has been turned
off long
enough for the oil to drain back into the oil pan.
2-86 -
Downloaded from www.Manualslib.com manuals search engine Check Gages Light
This warning light will
come on briefly when you
are starting the engine.
If the light comes on and
stays on while you are
driving, check your gages
to see if they are in the
warning areas.
Fuel Gage
When the gage pointer first indicates EMPTY (E) you
still have a little fuel left (about one to two gallons), but
you need to get more right away.
Here are four concerns some owners have had about the
fuel gage. All these situations are normal and do not
indicate that anything is wrong with the fuel gage.
0
0
0
0
Your fuel gage shows about
how much fuel is in your
tank. The fuel gage works
only when
the ignition switch
is in the
RUN position. At
the gas station, the gas pump shuts
off before me
gage reads FULL (F).
It takes more (or less) gas to fill up than the gage
reads. For example, the gage reads half
full, but it took
more (or less) than half of the tank's'capacity to
fill it.
The gage moves a little when you
turn, stop or speed up.
When you turn the engine
off, the gage doesn't go
back to
EMPTY (E).
2-87
Downloaded from www.Manualslib.com manuals search engine The air conditioner compressor operates in MAX, A/C,
BI-LEVEL, BLEND and DEFROST when the outside
temperature is above freezing. When the air conditioner
is
on, you may sometimes notice slight changes in your
vehicle’s engine speed and power. This is normal,
because the compressor uses power and the system is
designed to cycle the compressor on and off to keep the
desired cooling and help fuel economy.
Cooling
The air conditioner works best if you keep your
windows closed. On
very hot days, open the windows
just long enough for the hot air to escape.
1. Turn the air control knob to A/C for normal cooling.
For faster cooling, move the knob
to MAX.
comfortable setting.
2. Turn the temperature control knob to a
3. Turn the fan control knob to the desired speed.
Heating
The heater works best if you keep your windows closed
while using it.
1. Turn the air control knob to HEATER.
2. Turn the fan control knob to the desired speed.
3. Turn the temperature control knob to a
comfortable setting.
If your vehicle is equipped with an optional engine coolant
heater, you can use it in cold weather (around 20°F/-8”C
or lower) to improve heater performance on initial
start up.
Because an engine coolant heater warms the engine
coolant, your vehicles heating system can more quickly
and efficiently provide heat for your vehicle’s passenger
area. See “Engine Coolant Heater”
in the Index.
Bi-Level Heating
You may want to use bi-level heating on cool, but sunny
days. This setting directs
cool air toward your body and
warmer air toward your feet.
1. Turn the air control knob to BI-LEVEL.
2. Turn the temperature control knob to a
comfortable setting.
3. Turn the fan control knob to the desired speed.
3-3
Downloaded from www.Manualslib.com manuals search engine Rear Window Defogger (Option)
The rear window defogger
uses
a warming grid to
remove fog from the rear
window.
Press the right side of the switch to turn on the defogger.
An indicator light will come
on to remind you that the
defogger is on. The defogger will turn
off automatically
after about
10 minutes of use. If you turn it on again, the
defogger will operate for about five minutes only.
You
can also turn the defogger off by pressing the left side of
the switch.
Do not attach anything like a temporary vehicle license
or a decal across the defogger grid on the rear window.
NOTICE:
Don’t use a razor blade or something else sharp
on the inside
of the rear window. If you do, you
could cut
or damage the warming grid, and the
repairs wouldn’t be covered by your warranty.
3-5
Downloaded from www.Manualslib.com manuals search engine PUSHBUTTONS: The four numbered pushbuttons let
you return to your previously played stations. You can
set up to
14 stations (seven AM and seven FM).
1. Find the station you want by using TUNE.
2. Press SET. (The SET indicator will appear briefly on
the display.)
3. Press one of the four pushbuttons, within five
seconds. Whenever you press that numbered button,
the station you set will return.
4. Repeat the steps for each pushbutton.
In addition to the four stations
set as above, up to three
additional stations may be preset
on each band by
pressing two adjoining buttons at the same time. Just:
1. Tune in the desired station,
2. Press SET. (The SET indicator will appear on
the display.)
3. Press any two adjoining pushbuttons at the same
4. Whenever you press the same buttons, the station
time
(within five seconds).
you set will return.
Setting the Tone
BASS:
Slide the lever up to hear more bass.
TREB: Slide the lever up to hear more treble. Slide the
lever down to reduce noise if
a station is weak or noisy.
Adjusting the Speakers
BAL:
Turn the control behind the upper knob to adjust
the sound between the right and left speakers.
FADE: Turn the control behind the lower knob to move
the sound between the front and rear speakers.
Playing a Cassette Tape
REVERSE:
Press the SEEK arrow that is opposite of
the lit direction arrow to reverse the tape. The tape will
rapidly reverse until STOP-EJECT is pressed lightly.
FORWARD: Press the SEEK arrow that is the
same as the lit direction
arrow to advance the tape
rapidly. The tape will rapidly reverse until STOP-EJECT
is pressed lightly.