engine OLDSMOBILE BRAVADA 1997 Service Manual

If You're Caught in a Blizzard
A
If you are stopped by heavy snow, you could be in a
serious situation. You should probably stay
with your
vehicle unless you know for sure that you are near help
and you
can hike through the snow. Here are some
things to
do to summon help and keep yourself and your
passengers safe:
0 Turn on your hazard flashers.
0 Tie a red cloth to your vehicle to alert police that
you've been stopped by the snow.
0 Put on extra clothing or wrap a blanket around you.
If you have no blankets or extra clothing, make body
insulators from newspapers, burlap
bags, rags , floor
mats -- anything you can wrap around yourself or
tuck under your clothing to keep warm.
You can
run the engine to keep warm, but be careful.
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Know 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 awhile.
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.
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I 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.
Every Bravada is ready for some trailer towing. If yours
was built with trailering options, as many are, it’s ready
for heavier trailers. 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 part.
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.
If You Do Decide To Pull A Trailer
If you do, here are some important points:
0
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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
Ibs. (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 kln) your new vehicle
is driven. Your engine,
axle or other parts could be damaged.
Then, during the first 500 miles (800
kin) that you
tow a trailer, don’t drive over SO mph (80 kdh) and
don‘t make starts at
full throttle. This helps your
engine and other parts of your vehicle wear
in at the
heavier loads.
You should 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 buildup and extend the life of
your transmission.
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Driving with a Trailer
mmm
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
MAX A/C 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.
Before you start, check the trailer hitch and platform
(and attachments), safety chains, electrical connector,
lamps, tires and mirror adjustment.
If the trailer has
electric brakes, start your vehicle and trailer moving and
then apply the trailer brake controller by hand to be sure
the brakes are working. This lets you check your
electrical connection at the same time.
During your trip, check occasionally to be sure that the
load is secure, and that the lamps and any trailer brakes
are still working.
Following Distance
Stay at least twice as far behind the vehicle ahead as you
would when driving your vehicle without a trailer. This
can help you avoid situations that require heavy braking
and sudden turns.
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Driving On Grades
Reduce speed and shift to a lower gear before 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 transmission overheating.
You should use THIRD
(3) when towing a trailer.
Operating your vehicle in THIRD
(3) when towing a
trailer will minimize heat buildup and extend the life of
your transmission.
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. Apply your regular brakes, but don’t shift into
PARK
(I?) yet. Then turn your wheels into the curb if
facing downhill or into traffic if facing uphill.
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release the
regular brakes until the chocks absorb the load.
4. Reapply the regular brakes. Then apply your parking
brake and shift into PARK
(P).
5. 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:
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 transmission fluid (don’t
overfill), engine
oil, axle lubricant, belt, 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
5-7
5- 10
5-11
5-12
5- 12
5- 14 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
If Your Engine
is Overheating
If Steam is Coming From Your Engine
Cooling System 5-16
5-21
5-21
5-29
5-30
5-3 1
5-32
5-32 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
Using Recovery Hooks
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2. 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 vehicle, and the bad grounding could
damage the electrical systems.
You could be injured if the vehicles roll. Set the
parking brake firmly on each vehicle. Put an
automatic transmission in
PARK (P). Put a
manual transmission in NEUTRAL (N).
I unnecessary accessories plugged into the cigarette
lighter, or accessory power outlets, if you have this
option. Turn
off all lamps that aren’t needed as well
as radios. This will avoid sparks and help to save
both batteries. In addition, it could save your radio!
3. Turn off the ignition on both vehicles. Unplug
NOTICE:
If you leave your radio on, it could be badly
damaged. The repair wouldn’t be covered by
your warranty.
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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4. Open both hoods and locate the batteries. Find
the positive
(+) and negative (-) terminals on
each battery.
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 an unpainted
metal engine part
or a body metal surfice. Don’t
connect positive
(+) to negative (-j or you’ll get a
short that would damage the battery and maybe other
parts too. And don‘t connect the negative
(-) to
negative
(-).
6. Connect the I-ed
positive
(+) cable to the
positive
(+) terminal
of the vehicle with the
dead battery.
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7. Don’t let the other
end touch metal.
Connect
it to the
positive
(+) terminal
of the good battery.
8. 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
doesn’t go to the dead
battery. It goes to a heavy
unpainted metal part on
the engine of the vehicle
with the dead battery.
9. 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.
10. Now start the vehicle with the good battery and
run the engine for
a while.
11. Try to start the vehicle with the dead battery.
If it won’t start after a few tries, make sure all
connections are good.
If it still won’t start, it
probably needs service.
A CAUTION:
Fans or other moving engine parts can injure you
badly. Keep your hands away from moving parts
once the engines are running.
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