engine OLDSMOBILE SILHOUETTE 1997 Service Manual

Towing a Trailer
/ CA, TKL 4:
If you don’t use the correct equipment and drive
properly, you can lose control when you pull a
trailer. For example, if the trailer is too heavy, the
brakes may not work well
-- or even at all. You
and your passengers could be seriously injured.
Pull a trailer only if you have followed all the
steps in this section. Ask your Oldsmobile retailer
for advice and information about towing
a trailer
with your vehicle.
NOTICE:
Pulling a trailer improperly can damage your
vehicle and result in costly repairs not covered by
your warranty.
To pull a trailer correctly, follow
the advice in this part, and see your Oldsmobile
retailer for important information about towing
a trailer with your vehicle.
Your vehicle can tow a trailer. To identify what the
vehicle trailering capacity is for your vehicle, you
should read the information
in “Weight of the Trailer”
that appears later in this section. But trailering
is
different than just driving your vehicle by itself.
Trailering means changes
in handling, durability and
fuel economy. Successful, safe trailering takes correct
equipment, and it has
to be used properly.
That’s the reason for this section. In
it are many
time-tested, important trailering tips and safety rules.
Many
of these are important for your safety and that of
your passengers.
So please read this section carefully
before you pull a trailer.
Load-pulling components such as the engine, transaxle,
wheel assemblies and tires are forced to work harder
against the drag of the added weight. The engine is
required to operate at relatively higher speeds and under
greater loads, generating extra heat. What’s more, the
trailer adds considerably to wind resistance, increasing
the pulling requirements.
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If You Do Decide To Pull A Trailer
If you do, here are some important points:
There are many different laws, including speed limit
restrictions, having
to do with trailering. Make sure
your rig will be legal, not only where you live but
also where you’ll be driving. A good source for this
information can be state or provincial police.
Consider using a sway control if your trailer will
weigh
2,000 lbs. (900 kg) or less. You should always
use a sway control if your trailer will weigh more
than
2,000 lbs. (900 kg). You can ask a hitch dealer
about sway controls.
Don’t tow a trailer at all during the first 500 miles
(800 km) your new vehicle is driven. Your engine,
axle or other parts could be damaged.
Then, during the first 500 miles (800 km) that you
tow a trailer, don’t drive over
50 mph (80 km/h) and
don’t make starts at
full throttle. This helps your
engine and other parts of your vehicle wear
in at the
heavier loads. Three
important considerations have
to do with weight:
the weight of the trailer,
the weight of the trailer tongue
and the weight on your vehicle’s tires.
Weight of the Trailer
How heavy can a trailer safely be?
It should never weigh more than
1,400 lbs. (630 kg)
with up to six occupants or more than
2,000 lbs.
(900 kg) with up to two occupants. If you have the
optional trailer towing package, your vehicle can tow up
to
2,900 lbs. (1 300 kg) with up to six occupants or up to
3,500 lbs. (1 575 kg) with up to two occupants. But even
that can be too heavy.
It depends on how you plan to use your rig. For
example, speed, altitude, road grades, outside
temperature and how much your vehicle is used to pull a
trailer are all important. And, it can also depend on any
special equipment that
you have on your vehicle.
You may use THIRD (3) (or as you need to a lower
gear) when towing a trailer. Operating your vehicle
in
THIRD (3) when towing a trailer will minimize
heat build-up and extend the life
of your transaxle.
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Trailer Brakes
If your trailer weighs more than 1,000 lbs. (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 you 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.
DI a TI iler
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:
0 Have your exhaust system inspected for
leaks, and make necessary repairs before
starting on your trip.
CAUTION: (Continued)
0 Keep the rear-most windows closed.
0 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
RECIRC because it only recirculates the
air inside your vehicle. (See
‘‘ Comfort
Controls” in the Index.)
Towing
a trailer requires a certain amount of experience.
Before setting
out for the open road, you’ll want to get
to know your rig. Acquaint yourself with the feel
of
handling and braking with the added weight of the
trailer. And always keep in mind that the vehicle you
are driving is now a good deal longer and not nearly as
responsive
as your vehicle is by itself.
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Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle has to have extra
wiring and a different turn signal flasher.
The arrows on your instrument panel will flash
whenever you signal a turn or lane change. Properly
hooked up, the trailer lamps will also flash, telling other
drivers you’re about to turn, change lanes or stop.
When towing a trailer, the arrows on your instrument
panel will flash for turns even if
the bulbs on the trailer
are burned out. Thus, you may think drivers behind you
are seeing your signal when
they are not. It’s important
to check occasionally to be sure the trailer bulbs are
still working.
Driving On Grades
Reduce speed and shift to a lower gear befure you start
down a long or steep downgrade.
If you don’t shift
down, you might have to use your brakes
so much that
they would get hot and
no longer work well.
On a long uphill grade, shift down and reduce your
speed to around
45 mph (70 km/h) to reduce the
possibility of engine and transaxle overheating.
If you are towing a trailer that weighs more than
1,000 lbs.
(454 kg), you may prefer to drive in
THIRD
(3) instead of AUTOMATIC OVERDRIVE (D)
(or, as
you need to, a lower gear). This will minimize
heat build-up and extend the life of your transaxle.
Parking on Hills
You really should not park your vehicle, with a trailer
attached, on a
hill. If something goes wrong, your rig
could start to move. People can be injured, and both
your vehicle and the trailer can be damaged.
But
if you ever have to park your rig on a hill, here’s
how to do it:
1.
2.
3.
4.
5.
Apply your regular brakes, but don’t shift into
PARK
(P) yet.
Have someone place chocks under
the trailer wheels.
When
the wheel chocks are in place, release the
regular brakes
until the chocks absorb the load.
Reapply the regular brakes. Then apply your parking
brake, and then shift
to PARK (P).
Release the regular brakes.
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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 adjustment.
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.
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Section 5 Problems on the Road
Here you’ll find what to do about some problems that can occur on the road.
5-2
5-3
5-3
5-8
5- 10
5-1 1
5-12
5- 12
5- 13 How
to Use Warning Flashers
Other Types of Warning Devices
Step-by-step Procedure for Jump Starting
Information
You Should Know Before Towing
Towing Your Vehicle From the Front
Towing Your Vehicle From the Rear
Overheated Engine Protection
Operating Mode
If
Your Engine is Overheating
If Steam
is Coming From Your Engine
5- 15
5-16
5 -22
5-22
5-3
1
5-32
5-33
5-34
Cooling System
How to Add Coolant
What to
do if a Tire Goes Flat
How to Change a Flat Tire
Where to Store the Flat Tire and
Tools
Information on the Compact Spare Tire
If You’re Stuck in Sand, Mud, Snow or on Ice
How
to Rock Your Vehicle to Get Unstuck
5-1
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1. Check the other vehicle. It must have a 12-volt
battery with
a negative ground system.
NOTICE:
If the other system isn’t a 12-volt system with a
negative ground, both vehicles can be damaged.
Get the vehicles close enough
so the jumper cables
can reach, but be sure the vehicles aren’t touching
each other.
If they are, it could cause a ground
connection you don’t want.
You wouldn’t be able to
start your Oldsmobile, and the bad grounding could
damage the electrical systems.
NOTICE:
To avoid the possibility of the vehicles rolling, set
the parking brake firmly on both vehicles
involved in the jump start procedure. Put an
automatic transaxle in PARK
(P).
2. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette
lighter or accessory power outlet. Turn
off all lamps
that aren’t needed as well as radios. This will avoid
sparks and help save both batteries. In addition, it
could save your radio!
NOTICE:
~~ -
If you leave your radio on, it could be badly
damaged. The repairs wouldn’t be covered by
your warranty.
3. Open the hoods and locate the batteries.
An electric fan 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.
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I
Fans or other moving engine parts can injure you
badly. Keep your hands away from moving parts
once the engines are running.
5. Connect the red positive (+) cable to the positive (+)
terminal of the vehicle with the dead battery. Use a
remote positive
(+) terminal if the vehicle has one.
6. Don't let the other end
touch metal. Connect it
to the positive
(+)
terminal of the good
battery. Use a remote
positive
(+) terminal if
the vehicle has one.
7. Now connect the black
negative
(-) cable to
the good battery's
negative
(-) terminal.
Don't let the other end touch anything until the next
step. The other end of the negative
(-) cable duesn 'I go
to the dead battery. It goes to a heavy unpainted metal
part on the engine of the vehicle with the dead battery.
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8. Attach the cable at least
18 inches (45 cm) away
from the dead battery,
but not near engine parts
that move.
The electrical
connection
is just as
good there, but the
chance of sparks
getting back to the
battery is much less.
9. Now start the vehicle with the good battery and
run the engine for
a while.
10. Try to start the vehicle with the dead battery.
If it won’t start after
a few tries, it probably
needs service.
11. Remove
the cables in reverse order to prevent
electrical shorting. Take care that they don’t touch
each other or any other metal.
A. Heavy Metal Engine Part
B. Good Battery
C. Dead Battery
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Engine Overheating
You will find a coolant temperature gage on your
Oldsmobile’s instrument panel. See “Engine Coolant
Temperature Gage”
in the Index. You also have a low
coolant level light on your instrument panel. See “Low
Coolant Light” in the Index.
Overheated Engine Protection
Operating Mode
Should a low coolant condition exist, an overheat
protection mode which alternates firing groups of three
cylinders helps prevent engine damage. In this mode,
you will notice
a significant loss in power and engine
performance. The low coolant light may come on and
the temperature gage will indicate an overheat condition
exists. This emergency operating mode
allows your
vehicle to be driven to
a safe place in an emergency.
Towing
a trailer in the overheat protection mode should
be avoided.
I NOTICE:
After driving in the overheated engine protection
operating mode, to avoid engine damage, allow
the engine to cool before attempting any repair.
The engine oil
will be severely degraded. Repair
the cause of coolant loss and change the oil. See
“Engine Oil, When to Change” in the Index.
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