check engine light PONTIAC GRAND AM 1998 Owners Manual

Parking Lots
If you park in a lot where someone will be watching
your vehicle, it’s best to lock it up and take your keys.
But what if
you have to leave your key?
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If possible, park in a busy, well lit area.
Put your valuables in a storage area, like your
trunk or glove box. Be sure to close and lock the
storage area.
Close all windows.
Slide the remote trunk release lockout switch all the
way to the right.
Lock the glove box.
Lock all the doors except the driver’s.
Passlock@
Your vehicle is equipped with the Passlock
theft-deterrent system.
Passlock is a passive theft-deterrent system. The system
is armed once the key is removed from the ignition.
Passlock enables fuel if the ignition lock cylinder
is
turned with a valid key. If a correct key is not used, fuel
is disabled. During normal operation, the THEFT
SYS light will go
off after the engine is started.
If the engine stalls and the THEFT SYS light flashes,
wait until the light stops flashing before trying to restart
the engine. Remember to release the key from the START position as soon as the engine starts.
If
you are driving and the THEFT SYS light comes on,
you will be able to restart the engine if you turn the
engine
off. However, your Passlock system is not
working properly and must
be serviced by your dealer.
Your vehicle is not protected by Passlock at this time.
You may also want to check the fuse (see “Fuses and
Circuit Breakers” in the Index).
See your dealer
for service.
If the THEFT SYS light comes on while the engine is
running,
a problem has been detected and the system
may need service. See your dealer for service.
In an emergency, call the Pontiac Roadside Assistance
Center at 1 -800-ROADSIDE or 1-800-762-3743.
(In Canada, call 1-800-268-6800).
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Tachometer
si The tachometer shows your
1 engine speed in revolutions
per minute (rpm).
NOTICE:
Do not run your engine at speeds in the red area,
or engine damage may occur. I
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.
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Safety Belt Reminder Light
When the key is turned to RUN or START, a chime 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
55 seconds.
If the driver’s belt is already buckled, neither the chime
nor
the light will come on.
AIR
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.
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.
BAG
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Charging System Indicator Light
~ The charging system
indicator light will come
on
briefly when you turn on the
ignition, but the engine is
not
running. The light will
go out when the engine
is started.
If it stays on when your engine is running, or comes on
while you are driving, you may have a problem with the
electrical charging
system. It could indicate that you
have a loose generator drive belt or another electrical
problem. Have it checked right away. Driving while
this
light is on could drain your battery.
If you must drive a short distance with the light on, be
certain to turn off all your accessories, such as the radio
and air conditioner.
Brake System Warning Light
Your vehicle’s hydraulic brake system is divided into
two parts. If one part isn’t working, the other part can
still work and stop you. For good braking, though, you
need
both parts working well.
If the warning light comes on, there is a brake problem.
Have your brake system inspected right away.
BRAKE
United States Canada
This light should come on briefly when you turn the
ignition key
to RUN. If it doesn’t come on then, have it
fixed so it will be ready to warn you if there’s a problem.
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Low Coolant Warning Light
If this light comes on and
stays on, the vehicle should
be promptly pulled
off the
road and the coolant level checked. See “Engine
Coolant”
in the Index.
Malfunction Indicator Lamp
(Check Engine Light)
CHECK
Your vehicle is equipped
with a computer which
monitors operation of the
fuel, ignition and emission
control systems.
If there are visible signs of steam see “Engine
Overheating’’
in the Index before opening the hood.
Have your vehicle serviced as soon
as you can.
This system is called OBD 11 (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
CHECK ENGINE 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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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:
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 may be required.
malfunction has been detected on your vehicle.
Dealer or qualified service center diagnosis and
service may be required.
0 Light On Steady -- An emission control system
If the Light Is Flashing
The following may prevent more serious damage to
your vehicle:
0 Reducing vehicle speed.
0 Avoiding hard accelerations.
0 Avoiding steep uphill grades.
0 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 Have you recently changed brands of fuel?
You may be able to correct the emission system
malfunction by considering the following:
Did you recently 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. A loose or
missing fuel cap will allow fuel to evaporate into the
atmosphere.
A few driving trips with the cap properly
installed 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.
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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 Warning Light
If you have a problem with
your engine’s oil pressure,
this light may
stay on after
you start your engine, or
come on and stay on when
you are driving.
This indicates that oil is not going through your engine
quickly enough to keep it lubricated.
The engine could be low on oil, or could have some
other oil pressure problem. Have it fixed right away.
This light can come on briefly, which is normal and
doesn’t show a problem:
As a bulb check, the light comes on when you turn
your key to
RUN and goes off when the engine is
started.
If it doesn’t, be sure to have it fixed so it will
be there to warn you.
0 For the four cylinder engine, when idling at a stop
sign, the light may blink on and then
off. In addition,
if you make a hard stop, the light may come on
for a moment.
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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:
Damage to your engine from neglected oil
problems can be costly and is not covered by
your warranty.
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CHECK
OIL
Check Oil Light (If Equipped)
If your vehicle is equipped
with the
3 100 engine, this
light should come
on briefly
while you
are starting your
engine.
If the light does not
come on, have it repaired.
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If the light comes on and stays on after starting your
vehicle, the oil level should be checked.
Prior to checking
the oil level, be sure your vehicle has
been shut
off for several minutes and is on a level
surface. Check the oil level on the dipstick and bring
it
to the proper level. See “Engine Oil” in the Index.
NOTE: A false CHECK OIL light may be generated
when parking on steep grades.
The oil level monitoring system only checks oil level
during the brief period between key
on and engine start.
It does not monitor engine oil level when the engine
is
running. Additionally, an oil level check is only
performed if the engine
has been turned off for a
considerable period
of time allowing the oil normally in
circulation to drain back into the oil
pan.
Passlock Warning Light
THEFT
SYS
This light will come on
briefly when you
turn the
key toward
START. The
light will stay on until the
engine starts.
If the light flashes, the Passlock system has entered a
tamper mode. If the vehicle fails to start, see “Passlock”
in the Index.
If the light comes on continuously while driving and
stays
on, there may be a problem with the Passlock
system. Your vehicle will not be protected by Passlock,
and you should
see your dealer.
Up Shift Light (Manual Transaxle)
This light comes on when
you need to shift to the
next
higher gear. See “Manual
Transaxle” in the Index.
I SHIFT I
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Avoid needless heavy braking. Some people drive in
spurts
-- heavy acceleration followed by heavy
braking
-- rather than keeping pace with traffic. This is a
mistake. Your brakes may not have time to cool between
hard stops. Your brakes will wear out much faster if you
do a lot of heavy braking. If you keep pace with the
traffic and allow realistic following distances, you will
eliminate a lot of unnecessary braking. That means
better braking and longer brake
life.
If your engine ever stops while you’re driving, brake
normally but don’t pump your brakes.
If you do, the
pedal may get harder to push down.
If your engine
stops, you will still have some power brake assist. But
you
will use it when you brake. Once the power assist is
used up, it may take longer to stop and the brake pedal
will be harder to push.
Anti-Lock Brakes (ABS)
Your vehicle has anti-lock brakes (ABS). ABS is an
advanced electronic braking system that will help
prevent a braking
skid.
When you start your engine, or when you begin to drive
away, your anti-lock brake system will check itself. You
may hear
a momentary motor or clicking noise while
this test is going on, and you may even notice that your
brake pedal moves or pulses a little.
This is normal.
If there’s a problem with the
anti-lock brake system,
this
warning light will stay on.
See “Anti-Lock Brake
System Warning Light” in
the Index.