check engine PONTIAC PONTIAC 1997 Owner's Manual

Using a match near a battery can cause battery
gas
to explode. People have been hurt doing this,
and some have been blinded. Use
a flashlight if
you need more light.
Be sure the battery has enough water. You don’t
need to add water to the Delco Freedom@ battery
installed in every new
GM vehicle. But if a
battery has filler caps, be sure the right amount
of fluid is there. If it is low, add water to take
care of that first. If you don’t, explosive gas
could be present.
Battery fluid contains acid that can burn you.
Don’t get
it on you. If you accidentally get it in
your eyes or on your skin, flush the place with
water and get medical help immediately.
5. Check that the jumper cables don’t have loose or
missing insulation. If they do, you could get a shock,
The vehicles could be damaged, too.
Before you connect the cables, here are some basic
things you should know. Positive (+) will go to
positive (+) and negative (-) will go to negative (-)
or a metal engine part. Don’t connect positive (+) to
negative
(-), or you’ll get a short that would damage
the battery and maybe other parts, too.
Fans or other moving engine parts can injure you
badly. Keep
your hands away from moving parts
5-5
ProCarManuals.com

I
An electric fan under the hood can start up even
when the engine is not running and can injure
you. Keep hands, clothing
and tools away from
any underhood electric fan.
If the coolant inside the coolant recovery tank is boiling,
don’t
do anything else until it cools down.
The coolant level should be at or above the COLD mark
on the overflow hose in the coolant recovery bottle. To
check the coolant level remove the cap on the coolant
recovery bottle. Make sure to check that the coolant
level is up to the
COLD fill level on the hose attached to
the cap.
If it isn’t, you may have a leak in the radiator
hoses, heater hoses, radiator, water
pump or somewhere
else in the cooling system.
Heater and radiator hoses, a i other engine
parts, can
be very hot. Don’t touch them. If you
do, you can be burned.
Don’t run the engine if there is a leak. If you run
the engine,
it could lose all coolant. That could
cause
an engine fire, and you could be burned.
Get any leak fixed before you drive the vehicle.
5-16
ProCarManuals.com

NOTICE:
Engine damage from running your engine
without coolant isn’t covered
by your warranty.
_I
If there seems to be no leak, with the engine on, check to
see if the electric engine fans are running.
If the engine
is overheating and the key
is on, both fans should be
running. If they aren’t, your vehicle needs service.
How to Add Coolant to the Coolant
Recovery Tank
If you haven’t found a problem yet, but the coolant level
isn’t at the
COLD mark, add a 50/50 mixture of clean
water (preferably distilled) and DEX-COOL
antifreeze at the coolant recovery tank. (See “Engine
Coolant” in the Index for more information.)
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mix will. Your vehicle’s coolant warning
system is set for the proper coolant
mix.
With plain water or the wrong mix, your engine
could get too hot but you wouldn’t get the
overheat warning. Your engine could catch
fire
and you or others could be burned. Use a 50/50
mix of clean water and DEX-COOL antifreeze.
I NOTICE:
In cold weather, water can freeze and crack the
engine, radiator, heater core and other parts.
Use the recommended coolant and the proper
coolant mix.
ProCarManuals.com

If a Tire Goes Flat
10. Then replace the pressure cap. At any time during
this procedure if coolant begins to flow out
of the
filler neck, reinstall the pressure cap. Be sure the
mows
on the pressure cap line up like this.
11. Check the coolant in the recovery tank. The level
in the coolant recovery tank should be at the HOT
mark when the engine is
hot or at the COLD mark
when the engine is cold. It’s unusual for
a tire to “blow out”
while you’re driving,
especially
if you maintain your tires properly. If air goes
out of a tire, it’s much more likely to leak out slowly.
But if you should ever have a “blowout,” here are a few
tips about what to expect and what to do:
If
a front tire fails, the flat tire will create a drag that
pulls the vehicle toward that side. Take your foot
off
the accelerator pedal and grip the steering wheel firmly.
Steer to maintain lane position, and then gently brake to
a stop well out
of the traffic lane.
A rear blowout, particularly on a curve, acts much like a
slud and may require the same correction you’d use in a
skid. In any rear blowout, remove your foot from the
accelerator pedal. Get the vehicle under control by
steering the way you want the vehicle to go. It may be
very bumpy and
noisy, but you can still steer. Gently
brake to a stop
-- well off the road if possible.
If a tire goes flat, the next part shows how to use your
jacking equipment to change a
flat tire safely.
ProCarManuals.com

Section 6 Service and Appearance Care
Here you will find information about the care of your Pontiac. This section begins with service and fuel information,
and then it shows how to check important fluid and lubricant levels. There
is also technical information about your
vehicle, and a part devoted to its appearance care.
6-2
6-3 6-5
6-5
6-7
6- 14
6-2 1
6-26
6-32
6-33 6-36
6-37
6-37 6-44
6-46
Doing Your Own Service Work
What Kind of Fuel to Use
Using Fuel in Foreign Countries
Where to Put the Fuel and Filling the Tank
Checking
Things Under the Hood
Checking Your Engine Oil
Automatic Transaxle Fluid
Engine Coolant
Where to Fill the Windshield Washer Fluid
Important Brake Information
Information on Your Vehicle’s Battery
Tips on Vehicle Storage
Bulb Replacement Procedures
Windshield Wiper Blade Replacement
How and When to Check Tire Inflation 6-50
6-52
6-55
6-58
6-59
6-61
6-63
6-64
6-65 6-66
6-66
6-72
6-72
6-73
6-73 When
it is Time to Buy New Tires
Wheel Alignment
Cleaning the Inside of Your Vehicle
Care of the Safety Belts and Built-in
Child Restraint
Cleaning the Outside of Your Vehicle
How to Clean Aluminum Wheels
Underbody Maintenance
Recommended Appearance
Care Materials
Your Vehicle Identification Number (VIN)
The Electrical System
Fuses and Circuit Breakers
Replacement Bulb Types for Your Vehicle
Capacities and Specifications
Air Conditioning Specifications
Normal Replacement Parts
ProCarManuals.com

Adding Equipment to the Outside of
Your Vehicle
Things you might add to the outside of your vehicle can
affect the airflow around it. This may cause wind noise
and affect windshield washer performance. Check with
your Pontiac dealer before adding equipment to the
outside of your vehicle.
Fuel
The 8th digit of your vehicle identification number
(VIN) shows the code letter for your engine. You will
find the VIN at the top left
of your instrument panel.
(See “Vehicle Identification Number” in the Index.)
If you have the 3800 engine (VIN Code K), use regular
unleaded gasoline rated at 87 octane or higher. If you’re
using fuel rated at the recommended octane or higher
and you still hear heavy knocking, your engine needs
service. But don’t worry if you hear a little pinging
noise when you’re accelerating or driving up a hill.
That’s normal, and you don’t have to buy a higher
octane fuel to get rid of pinging. It’s the heavy, constant
knock that means you have
a problem.
If you have the 3800 Supercharged engine (VIN Code
l), use premium unleaded gasoline rated at 91 octane or
higher. With
the 3800 Supercharged engine, in an
emergency, you may be able
to use a lower octane -- as
low as 87
-- if heavy knocking does not occur. If you
are using 91 or higher octane unleaded gasoline and you
still hear heavy knocking, your engine needs service.
At
a minimum, the gasoline you use should meet
specifications ASTM D48
14 in the United States an’d
CGSB 3.5-M93 in Canada. Improved gasoline
specifications have been developed by the American
Automobile Manufacturers Association (AAMA) for
better vehicle performance and engine protection.
Gasolines meeting the AAMA specification could
provide improved driveability
and emission control
system protection compared to other gasolines.
Be sure the posted octane for premium is at least 91 (at
least 89 for middle grade and
87 for regular). If the
octane is less than 87, you may get a heavy knocking
noise when you drive.
If it’s bad enough, it can damage
your engine.
ProCarManuals.com

If your vehicle is certified to meet California Emission
Standards (indicated on the underhood tune-up label),
it
is designed to operate on fuels that meet California
specifications. If such fuels
are not available in states
adopting California emissions standards, your vehicle
will operate satisfactorily on fuels
meeting federal
specifications, but emission control system performance
may be affected. The malfunction indicator lamp
on
your instrument panel may turn on and/or your vehicle
may fail a smog-check test.
If this occurs, return to your
authorized Pontiac dealer for diagnosis to determine
the
cause of failure. In the event it is determined that the
cause of
the condition is the type of fuels used, repairs
may not be covered by your warranty.
Some gasolines that
are not reformulated for low
emissions contain an octane-enhancing additive called
methylcyclopentadlenyl manganese tricarbonyl (MMT); ask your service station operator whether or not his fuel
contains
MMT. General Motors does not recommend the
use of such gasolines. If fuels containing MMT are used,
spark plug life may be reduced and your ernissicrn
control
system performance may be affected. The
malfunction indicator lamp
on your instrument panel
may
turn on. If this occurs, return to your authorized
Pontiac dealer
€or service.
To provide cleaner ais, all gasolines in the United States
are now required to contain additives that will help
prevent deposits
from forming in your engine and fuel
system, allowing your emission control system to
function properly. Therefore,
you should not have to add
anything to the
fuel. In addition, gasolines containing
oxygenates, such as ethers and ethanol, and
reforrnulate'd gasolines may
be available in your area to
help clean the air. General Motors recommends that you
use these gasolines
if they comply with the
specifications described earlier.
~~
NOTICE:
Your vehicle was not designed for fuel that
contains methanol. Don't use it. It
can corrode
metal parts in
your fuel system and also damage
plastic and
rubber parts. That damage wouldn't
be covered under
your warranty.
_____~~
6-4
ProCarManuals.com

When you put the cap back on, turn it to the right
(clockwise) until you hear at least three clicks. Make
sure you fully install the cap.
NOTICE:
If you need a new cap, be sure to get the right
type. Your dealer can get one for you.
If you get
the wrong type, it may not
fit or have proper
venting, and your fuel tank and emissions system
might be damaged.
Checking Things Under the Hood
A CAUTION:
An electric fan under the hood can start up and
injure you even when the engine is not running.
Keep hands, clothing and tools
away from any
underhood electric fan.
Things that burn can get on hot engine parts and
start
a fire. These include liquids like gasoline,
oil, coolant, brake fluid, windshield washer and
other fluids, and plastic
or rubber. You or others
could
be burned. Be careful not to drop or spill
things that will burn onto
a hot engine.
6-7
ProCarManuals.com

Before closing the hood, be sure all the filler caps
are on properly. Then just pull the hood down and
close
it firmly.
3800 Supercharged Engine
(If Equipped)
Your Pontiac may have a 3800 Supercharged engine.
The supercharger is a device which is designed to pump
more air into the engine than it would normally
use.
This air mixed with fuel, creates increased engine
power. Since the supercharger is a pump and is driven
from an engine accessory drive belt, increased pressure
is available at all driving conditions.
The powertrain control module (PCM) works with a
vacuum control to regulate the increased pressure
required during specific driving conditions. When this
increased pressure or
boost is not desired, such as during
idling
and light throttle cruising, the excess air that the
supercharger is pumping is routed through
a bypass.
All
of these controls, working together provide high
performance character and fuel efficiency in the
3800 Supercharged engine.
Engine Oil
LOW OIL
LEVEL
If the LOW OIL LEVEL
light on the instrument
panel comes
on, it means
you need to check your
engine oil level right away.
For more information, see
“Low Oil Level Light” in
the Index. You should
check your engine
oil
level regularly; this is an
added reminder.
It’s a good idea to check your engine oil every time you
get fuel, In order to get an accurate reading, the
oil must
be warm and the vehicle must be on level ground.
6-12
ProCarManuals.com

Checking Engine Oil
Pull out the dipstick and
clean it with
a paper towel
or cloth, then push
it back
in all
the way. Remove it
again, keeping the tip
down, and check
the level.
3100 Engine
When to Add Oil
If the oil is at or below the lower mark, then you’ll need
to add some oil. But you must use the right kind. This
part explains what kind of oil to use, For crankcase
capacity, see “Capacities and Specifications” in
the Index.
I NOTICE:
Don’t add too much oil. If your engine has so
much oil that the oil level gets above the
cross-hatched area that
shows the proper
operating
range, your engine could be damaged.
3100 Engine
ProCarManuals.com