2003 OLDSMOBILE SILHOUETTE engine

Safety Chains
You should always attach chains between your vehicle
and your trailer. Cross the safety chains under the
tongue
of the trailer to help prevent the tongue from
contacting the road
if it becomes separated from
the hitch. Instructions about safety chains may be
provided by the hitch manufacturer or by the
trailer manufacturer. Follow the manufacturer’s
recommendation for attaching safety chains and do not
attach them to the bumper. Always leave just enough
slack
so you can turn with your rig. Never allow
safety chains to drag on the ground.
Trailer Brakes
If your trailer weighs more than 1,000 Ibs. (450 kg)
loaded, then it needs its own brakes
- and they must be
adequate. Be sure to read and follow the instructions
for the trailer brakes
so you’ll be able to install,
adjust and maintain them properly.
Because your vehicle may have anti-lock brakes, do not
try to tap into your vehicle’s brake system.
If you do,
both brake systems won’t work well, or at all.
Driving with a Trailer
If you have a rear-most window open and
you pull a trailer with your vehicle, carbon monoxide (CO) could come into your vehicle.
You can’t see or smell
CO. It can cause
unconsciousness or death. See “Engine
Exhaust” in the Index.
To maximize your safety
when towing a trailer:
Have your exhaust system inspected for
leaks, and make necessary repairs before
starting on your trip.
Keep the rear-most windows closed.
If exhaust does come into your vehicle
through a window
in the rear or another
opening, drive with your front, main
heating or cooling system on and with the
fan on any speed. This will bring fresh,
outside air into your vehicle.
Do not use
the comfort control setting for maximum air because
it only recirculates the air
inside your vehicle. See ‘“Comfort
Controls” in
the Index.
4-40

When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal down
while you:
start your engine,
* shift into a gear, and
* 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, belts, 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 these sections before you
start your trip.
Check periodically
to see that all hitch nuts and bolts
are tight.
Trailer Wiring Harness
Your vehicle has a trailer wiring harness located at the
rear of your vehicle.
To use the trailer wiring harness
you need a converter kit. Contact your dealer for more
information.
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 Your Tank
............................ ..... 5-7
Filling a Portable Fuel Container
.................... 5-9
Checking Things Under the
Hood .................. -5-1 0
Hood Release .............................................. 5-10
Engine Compartment Overview ....................... 5-12
Engine Oil
................................................... 5-14
Engine Air CleanedFilter
................................ 5-19
Automatic Transaxle Fluid
.............................. 5-20
Radiator Pressure Cap
............................... 5-26
Engine Overheating
.................................... 5-26
Cooling System
............................. , ....... 5-29
Power Steering Fluid .................. , ....... 5-37
Windshield Washer Fluid
................. , ....... 5-38
Brakes
.......................... .... ........ 5-39
r.--.:.-- ---I-.- b CI lyll IC uuvlal I1 4-LU c r)r) .............................................
Battery ........................................................ 5.43
Jump Starting
............................................... 5-44
All-Wheel Drive
.............................................. 5-50
Bulb Replacement .......................................... 5-52
Halogen Bulbs
.............................. ......... 5-52
Front Turn Signal, Sidemarker and
Taillamps, Turn Signal, Stoplamps and
Headlamps
...................................... ..... 5-52
Parking Lamps
.............................. ..... 5-54
Replacement Bulbs
....................................... 5-57
Back-up Lamps
......................................... 5-56
Windshield Wiper Blade Replacement
.............. 5-58
Tires
.............................................................. 5-60
Inflation
- Tire Pressure ................................ 5-61
Tire Inspection and Rotation
........................... 5-62
When It
Is Time for New Tires ....................... 5-63
Buying New Tires
......................................... 5-64
Uniform Tire Quality Grading
.......................... 5-65
Wheel Alignment and Tire Balance
.................. 5-66
Wheel Replacement
...................................... 5-66
Tire Chains
.................................................. 5-67
Accessory Inflator
......................................... 5-68
If a Tire Goes Flat ........................................ 5-69
Changing a Flat Tire ..................................... 5-70
Compact Spare Tire ...................................... 5-86
5- 1

Gasoline Specifications
Use of the recommended fuel is an important part of
the proper maintenance of your vehicle.
Gasoline Octane
Use regular unleaded gasoline with a posted octane
of
87 or higher. If the octane is less than 87, you may
get a heavy knocking noise when you drive.
If this
occurs, use a gasoline rated at
87 octane or higher
as soon as possible. Otherwise, you might damage
your engine.
A little pinging noise when you accelerate
or drive uphill is considered normal. This does not
indicate a problem exists or that a higher-octane fuel is
necessary. If you are using
87 octane or higher-octane
fuel and hear heavy knocking, your engine needs
service. It
is recommended that gasoline meet specifications
which were developed by the American Automobile
Manufacturers Association and endorsed by the
Canadian Vehicle Manufacturers Association for better
vehicle performance and engine protection. Gasoline
meeting these specifications could provide improved
driveability and emission control system performance
compared to other gasoline.
In Canada, look for the
“Auto Makers’ Choice”
label on the pump.
Canada Only
5-5

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 Indicator Lamp on page 3-47 )
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.
Notice: 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

When you put the fuel cap back on, turn it to the right
(clockwise) until you hear a clicking sound. Make
sure you fully install the cap. The diagnostic system can
determine
if the fuel cap has been left off or improperly
installed. This would allow fuel to evaporate into the
atmosphere. See
Malfunction Indicator Lamp on
page 3-47.
The malfunction indicator lamp (SERVICE ENGINE
SOON or CHECK ENGINE light) will come on
if the
fuel cap is not properly installed.
Notice: If you need a new fuel 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 properly.
This may cause your malfunction indicator lamp to
light and may damage your fuel tank and emissions
system. See “Malfunction Indicator Lamp”
in the
Index.
Filling a Po -able Fuel C ‘ainer
I-
I fil portablc uel container while it is in
your vehicle. Static electricity discharge from
the container can ignite the gasoline vapor.
You can be badly burned and your vehicle
damaged if this occurs.
To help avoid injury
to you and others:
Dispense gasoline only into approved
containers.
Do not fill a container while it is inside a
vehicle, in a vehicle’s trunk, pickup bed or on any surface other than the ground.
Bring the fill nozzle in contact with the
inside of the fill opening before operating
the nozzle. Contact should be maintained
until the filling is complete.
0 Don’t smoke while pumping gasoline.
5-9

Checking Things Under
the Hood Hood Release
To open the hood, do the following:
I
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.
1
L
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.
1. Pull the hood release handle, located on the
driver's side under the instrument panel.
2. Go to the front of the vehicle and push up on the
underhood release, located near the center under
the grille.
5-1 0

3.
4.
Lift the hood.
Pull forward on the hood prop to release it from its
storage clip.
The hood prop may be hot due to increased engine
temperatures under the hood,
so be careful when
handling it. Use your hood prop sleeve when
handling the hood prop. Before closing
the hood, be sure all the filler caps are
on properly. Then follow these steps:
1. Lift the hood to relieve pressure on the hood prop.
2. Remove the hood prop from the slot in the hood.
3. Return the prop to its retainer.
4. Let the hood down and close it firmly.
Put the end of the
hood prop into the slot
in the underside of
the hood.
5-1 1