check engine PONTIAC GRAND AM 2003 User Guide

Here are some things you can check before a trip:
Windshield Washer Fluid: Is the resewior full? Are
all windows clean inside and outside?
Wiper Blades: Are they in good shape?
Fuel, Engine Oil, Other Fluids: Have you checked
all levels?
Lamps: Are they all working? Are the lenses clean?
Tires: They are vitally important to a safe,
trouble-free trip.
Is the tread good enough for
long-distance driving? Are the tires all inflated to the
recommended pressure?
Weather Forecasts: What’s the weather outlook
along your route? Should you delay your trip a
short time
to avoid a major storm system?
Maps: Do you have up-to-date maps?
Highway Hypnosis
Is there actually such a condition as “highway
hypnosis”? Or is it just plain falling asleep at the wheel?
Call it highway hypnosis, lack of awareness, or
whatever. There
is something about an easy stretch
of road with
the same scenery, along with the hum of the tires on the
road, the drone of the engine, and the rush of the
wind against the vehicle that can make you sleepy. Don’t
let
it happen to you! If it does, your vehicle can leave
the road in
less than a second, and you could crash and
be injured.
What can you
do about highway hypnosis? First, be
aware that it can happen.
Then here are some tips:
Make sure your vehicle is well ventilated, with a
comfortably cool interior.
Keep your eyes moving. Scan the road ahead and
to the sides. Check your rearview mirrors and your
instruments frequently.
service or parking area and take a nap, get some
exercise, or both. For safety, treat drowsiness
on the highway as an emergency.
If you get sleepy, pull off the road into a rest,
4-24

Hill and Mountain Roads
Driving on steep hills or mountains is different from
drivina
w in flat or rollinq terrain.
If you drive regularly in steep country, or if you’re
planning to visit there, here are some tips that can make
your trips safer and more enjoyable.
Keep your vehicle in good shape. Check all fluid
levels and
also the brakes, tires, cooling system
and transaxle. These parts can work hard on
mountain roads.
Know how to go down hills. The most important
thing
to know is this: let your engine do some of
the
slowing down. Shift to a lower gear when you go
down a steep or lom hill.
If you don’t shift down, your brakes could get
so hot that they wouldn’t work well. You would
then have poor braking or even none going
down a
hill. You could crash. Shift down to let
your engine assist your brakes
on a steep
downhill
slope.
i
Coasting downhill in NEUTRAL (N) or with the
ignition
off is dangerous. Your brakes will have
to
do all the work ai siowing down. I ney cwdd
get so hot that they wouldn’t work well. You
would then have poor braking or even none going down a hill. You could crash. Always have your engine running and your vehicle in
I.
4-25

You can run the engine to keep warm, but be careful.
Snow can trap exhaust gases under your
vehicle. This can cause deadly
CO (carbon
monoxide) gas to get inside.
CO could
overcome you and kill you. You can’t see
it or
smell
it, so you might not know it is in your
vehicle. Clear away snow from around the
base of your vehicle, especially any that is
blocking your exhaust pipe. And check around
again from time to time to be sure snow
doesn’t collect there.
Open a window just a little on the side of the
vehicle that’s away from the wind. This will help keep
CO out. Run your engine only
as long as you must. This saves
fuel. When you run the engine, make it go a little
faster than just idle. That
is, push the accelerator
slightly. This uses less fuel for the heat that you get and
it keeps the battery charged. You will need a
well-charged battery
to restart the vehicle, and possibly
for signaling later on with your headlamps. Let the
heater run for a while.
Then, shut the engine
off and close the window almost
all the way
to preserve the heat. Start the engine
again and repeat this only when you feel really
uncomfortable from the cold. But do it as little as
possible. Preserve the fuel as long as you can.
To help
keep warm, you can get out of the vehicle and do
some fairly vigorous exercises every half hour or
so until
help comes.
4-30

When You Are Ready to Leave After
Parking on
a Hill
1. Apply your regular brakes and hold the pedal down
while you:
0 start your engine,
0 shift into a gear, and
0 release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the
chocks.
Maintenance When Trailer Towing
Your vehicle will need service more often when you’re
pulling a trailer. See the Maintenance Schedule for more
on this. Things that are especially important in trailer
operation are automatic transaxle fluid (don’t overfill), engine
oil, drive belt, cooling system and brake system.
Each of these
is covered in this manual, and the
Index will help you find them quickly.
If you’re trailering,
it’s a good idea
to review this information before you
start your trip.
Check periodically to see that all hitch nuts and bolts
are tight.
Engine Cooling When Trailer Towing
Your cooling system may temporarily overheat during
severe operating conditions. See
Engine Overheating on
page 5-26.
4-43

Section 5 Service and Appearance Care
Service ............................................................ 5.3
Doing Your Own Service Work
......................... 5.3
Adding Equipment to the Outside of Your
Vehicle
...................................................... 5.4
Fuel ................................................................ 5.5
Gasoline Octane
............................................ 5.5
Gasoline Specifications
.................................... 5.5
California Fuel
............................................... 5-6
Additives
....................................................... 5-6
Fuels in Foreign Countries
............................... 5-7
Filling
a Portable Fuel Container ..................... -5-9
Filling Your Tank
............................................ 5-7
Checking Things Under the Hood
.................................................... 5-10
Hood Release
.............................................. 5-10
Engine Compartment Overview
....................... 5-12
Engine Oil
................................................... 5.15
Engine Air CleanedFilter
................................ 5-21
Manual Transaxle Fluid
.................................. 5-22
Hydraulic Clutch
........................................... 5-23
Engine Coolant
............................................. 5-23
Engine Overheating
....................................... 5-26
Cooling System
............................................ 5-29
Power Steering Fiuia
~1-36
I~~ULWIII~LIW I 1ulIaUAlG I lulu J-LL An ntnmntie Trnnr.r-.vln Cln #;PI r on ..............................
- -- ....................................
Windshield Washer Fluid ................................ 5-37
Brakes
........................................................ 5.39
Battery
........................................................ 5.42
Jump Starting
............................................... 5-43
Bulb Replacement .......................................... 5.49
Halogen Bulbs
.............................................. 5.49
Headlamps
.................................................. 5.49
Front Turn Signal and Parking Lamps
.............. 5-50
Center High-Mounted Stoplamp (CHMSL)
......... 5.50
Taillamps, Turn Signal, and Stoplamps
............ 5.51
Replacement Bulbs
....................................... 5.51
Windshield Wiper Blade Replacement
.............. 5.52
Tires
.............................................................. 5.53
Inflation
.. Tire Pressure ................................ 5-54
Tire Inspection and Rotation
........................... 5-55
When It
Is Time for New Tires ....................... 5-56
Buying New Tires
......................................... 5-56
Uniform Tire Quality Grading
......................... 5-57
Wheel Alignment and Tire Balance
.................. 5-59
Wheel Replacement
...................................... 5-59
Tire Chains
.................................................. 5-60
If a Tire Goes Flat ........................................ 5-61
Changing
a Flat Tire ..................................... 5-62
Compact Spare Tire
...................................... 5-71
5-
1

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

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

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