Engine PONTIAC GRAND AM 2003 Workshop Manual

California Fuel
If your vehicle is certified to meet California Emission
Standards (see the underhood emission control label),
it is designed
to operate on fuels that meet California
specifications.
If this fuel is 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 may
turn on (see
Malfunction lndicator Lamp on page 3-31)
and your vehicle may fail a smog-check test. If this
occurs, return to your authorized GM dealer for
diagnosis.
If it is determined that the condition is caused
by the type of fuel used, repairs may not be covered
by your warranty.
Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that will help
prevent engine and fuel system deposits from forming,
allowing your emission control system to work
properly. You should not have to add anything to your
fuel. Gasolines containing oxygenates, such as
ethers and ethanol, and reformulated gasolines may be
available in your area
to contribute to clean air. General Motors
recommends that you use these
gasolines, particularly
if they comply with the
specifications described earlier.
Nofice: Your vehicle was not designed for fuel that
contains methanol. Don’t use fuel containing
methanol. It can corrode metal parts in your fuel
system and also damage the plastic and rubber
parts. That damage wouldn’t be covered under your
warranty.
Some gasolines that are not reformulated for low
emissions may contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. General Motors does
not recommend the use of such gasolines. Fuels
containing MMT can reduce the life of spark plugs and
the performance of the emission control system may
be affected. The malfunction indicator lamp may turn on.
If this occurs, return to your authorized GM dealer for
service.
5-6

Checking Things Under
the Hood
Hood Release
To open the hood, do the following:
1. Pull the handle located
under the instrument
panel on the drivier's side
of the vehicle.
L% 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 fuel,
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.
I
5-1 0

A. Engine Coolant Surge Tank
B. Engine Oil Dipstick
C. Engine
Oil Fill Cap
D. Brake Fluid Reservoir
E. Power Steering Fluid Reservoir F. Engine Compartment Fuse
Block
G. Engine Air Cleaner/Filter
H. Battery
I. Windshield Washer Fluid Reservoir
5-1 3

When you open the hood on the 3400 V6 engine, you’ll see the following:
A. Engine Coolant Surge Tank
E. Brake Fluid Reservoir
B. Power Steering Fluid Reservoir F. Engine Air CleanedFilter
C. Engine Oil Fill Cap G. Battery
D. Engine Oil Dipstick H. Windshield Washer Fluid Reservoir
5-1 4

Engine Oil
LOW
Ole
3400 V6 Engine Only
If the LOW OIL light
appears on the instrument
cluster, it means you
need to check your engine
oil level right away.
Checking Engine Oil
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.
For more information, see
Low Oil Level Light on
page 3-35.
You should check your engine oil level regularly; this is
an added reminder.
2.2L L4 ECOTEC Engine
5-1 5

3400 V6 Engine
The engine oil dipstick handle is yellow. The dipstick on
the
2.2L L4 ECOTEC engine is located at the front of
the engine compartment. The dipstick on the 3400
V6 engine is located at the front of the engine, behind
the fan. See
Engine Compartment Overview on
page 5-12 for more information on location.
Turn
off the engine and give the oil several minutes to
drain back into the oil pan. If you don't, the oil
dipstick might not show the actual level.
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.
2.2L L4 ECQTEC Engine
3400 V6 Engine
5-1 6

When to Add Engine Oil
If the oil is at or below the MIN mark for the 2.2L L4
ECOTEC engine or below the cross-hatched area at the
tip of the dipstick for the
3400 V6 engine, then you’ll
need
to add at least one quart of oil. But you must use
the right kind. This part explains what kind of oil
to
use. For engine oil crankcase capacity, see Capacities
and Specifications
on page 5-86
Notice: Don’t add too much oil. If your engine has
so much oil that the oil level gets above the
upper mark that shows the proper operating range,
your engine could be damaged.
A
For the location of the
engine
oil fill cap see
Engine Compartment
Be sure to fill it enough to put the level somewhere in
the proper operating range. Push the dipstick all the way
back in when you’re through.
5-1 7

What Kind of Engine Oil to Use
Oils recommended for your vehicle can be identified by
looking for the starburst symbol.
This symbol indicates that the oil has been certified by
the American Petroleum Institute (API). Do not use
any oil which does not carry this starburst symbol.
If you choose to perform
the engine oil change
service yourself, be sure
the
oil you use has
the starburst symbol on the front of the oil
container.
If you have your
oil changed for you, be
sure the oil put into
your engine is American
Petroleum Institute certified
for gasoline engines.
You should also
use the proper viscosity oil for your
vehicle, as shown in the viscosity chart.
RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
HOT
WEATHER
I_ t 20
-.
LOOK
FOR MIS
SYMBOL
ACCEPTABLE
COLD
WEATHER
DO NOT USE SAE 1OW-40, SAE 2OW-50 OR ANY OTHER
VlSCOSlN GRADE OIL NOT RECOMMENDED
5-1 8

As in the chart shown previously, SAE 5W-30 is the
only viscosity grade recommended for your vehicle. You
should look for and use only oils which have the API
Starburst symbol and which are also identified as
SAE 5W-30. If you cannot find such SAE 5W-30 oils,
you can use an SAE IOW-30 oil which has the API
Starburst symbol,
if it's going to be 0°F (-18°C)
or above. Do not use other viscosity grade oils, such as
SAE
IOW-40 or SAE 20W-50 under any conditions.
Notice: Use only engine oil with the American
Petroleum Institute Certified For Gasoline Engines
starburst symbol. Failure to use the recommended
oil can result in engine damage not covered by
your warranty.
GM Goodwrench@ oil meets all the requirements for
your vehicle.
If you are in an area of extreme cold, where the
temperature falls below -20°F
(-29"C), it is
recommended that you use either an SAE 5W-30
synthetic oil or an SAE OW-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.
Engine Oil Additives
Don't add anything to your oil. The recommended oils
with the starburst symbol are ail you will need for
good performance and engine protection.
When to Change Engine Oil (GNI Oil
Life SystemTM)
Your vehicle has a computer system that lets you know
when to change the engine oil and filter. This is
based on engine revolutions and engine temperature,
and not on mileage. Based on driving conditions,
the mileage at which an oil change will be indicated can
vary considerably. For the oil life system
to work
properly, you must reset the system every time the oil
is
changed.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A CHANGE OIL light will come on. Change
your oil as soon as possible within the next two
times you stop for fuel.
It is possible that, if you are
driving under the best conditions, the
oil life system may
not indicate that an
oil change is necessary for over a
year. However, your engine oil and filter must be
changed at least once a year and at this time the system
must be reset. It is also important to check vour oil
regularly and keep
it at the proper level.
If the system is ever reset accidentally, you must
change your oil at 3,000 miles
(5 000 km) since your
last oil change. Remember
to reset the oil life system
whenever the oil
is changed.
5-1 9

How to Reset the Change Oil Light
The GM Oil Life SystemTM calculates when to change
your engine oil and filter based on vehicle use. Anytime
your oil is changed, reset the system
so it can
calculate when the next oil change is required.
If a
situation occurs where you change your oil prior
to a
CHANGE OIL light being turned on, reset the system.
After changing the engine oil, the system must be reset.
To reset the oil life indicator, do the following steps:
1. With the ignition key in ON (a short time after
turning
off the engine), press the RESET button
located in the driver’s side instrument panel
fuse block. See “Instrument Panel Fuse Block”
under
Fuses and Circuit Breakers on page 5-81.
2. When the CHANGE OIL light starts to flash, press
and hold the RESET button again.
The reset is complete when you hear the chimes and
the CHANGE OIL light goes out.
If your vehicle is equipped with a 2.2L L4 ECOTEC
engine, it has a unique oil filter element. When
reinstalling the filter cap do not exceed
18 Ib ft (25 N*m ).
Inspect the condition of the O-ring and replace if
damaged.
What to Do with Used Oil
Used engine oil contains certain elements that may be
unhealthy for your skin and could even cause cancer.
Don’t let used oil stay on your skin for very long. Clean
your skin and nails with soap and water, or a
good
hand cleaner. Wash or properly dispose of clothing or
rags containing used engine oil. See the manufacturer’s
warnings about the use and disposal of oil products.
Used oil can be a threat
to the environment. If you
change your own oil, be sure to drain all the oil from the
filter before disposal. Never dispose of oil by putting it
in the trash, pouring it on the ground, into sewers, or into
streams or bodies of water. Instead, recycle it by
taking it to a place that collects used oil. If you have a
problem properly disposing of your used oil, ask
your dealer, a service station or a local recycling center
for help.
See your dealer for additional information.
5-20