engine overheat OLDSMOBILE BRAVADA 1996 Owners Manual

The 1996 Oldsrnobile Bravada Owner’s Manual
Seats and Restraint Systems ............................................................. 1-1
Features and Controls .................................................................. 2-1
Comfort Controls and Audio Systems ..................................................... 3-1
This section tells you how to use your seats and safety belts\
properly. It also explains the “SIR” system.
This section explains how to start and operate your Oldsmobile.
This section tells you how to adjust the ventilation and comfort controls and how to operate your
audio system.
Here you’ll find helpful information and tips about
the road and how to drive under different conditions.
This section tells you what
to do if you have a problem while driving, such as a flat tire or
overheated engine, etc.
Here the manual
tells you how to keep your Oldsmobile running properly and looking good.
This section tells
you when to perform vehicle maintenance and what fluids and lubricants to use.
This section tells you how
to contact Oldsmobile for assistance and how to get service and owner publications.
It
also gives you information on “Reporting Safety Defects” on pag\
e 8-7.
YourDrivingandtheRoad .............................................................. 4-1
ProblemsontheRoad .................................................................. 5-1
ServiceandAppearanceCare ............................................................ 6-1
Maintenanceschedule .................................................................. 7-1
Customer Assistance Information ........................................................ 8-1
Index ........................................................................\
........ 9-1
Here’s an alphabetical listing of almost every subject in this manual. You can use it to quickly find
something you want to read.
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Engine Coolant Heater (Option)
The engine coolant heater
cord is secured on the
driver’s side of the vehicle,
by the brake controller.
In very cold weather,
0°F (- 18OC) or colder, the engine
coolant heater can help. You’ll get easier starting and
better fuel economy during engine warm-up. Usually,
the coolant heater should be plugged in
a minimum of
four hours prior to starting your vehicle.
To use the coolant heater:
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
3. Plug it into a normal, grounded 110-volt AC outlet.
~ Plugging the cord into an ungrounded outlet
~ could cause an electrical shock. Also, the wrong
1 kind of extension cord could overheat and cause
~ a fire. You could be seriously injured. Plug the
~ cord into a properly grounded three-prong
110-volt AC outlet.
If the cord won’t reach, use a
heavy-duty three-prong extension cord rated for
at least 15 amps.
4. After you’ve used the coolant heater, be sure to store
the cord as it was before
to keep it away from moving
engine parts.
If you don’t, it could be damaged.
How long should you keep the coolant heater plugged
in? The answer depends on the outside temperature, the
kind
of oil you have, and some other things. Instead of
trying to list everything here, we ask that you contact
your Oldsmobile retailer in the area where you’ll be
parking your vehicle. The retailer can give you the best
advice for that particular area.
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Locking Rear Axle
Your rear axle can give you additional traction on snow,
mud, ice, sand or gravel. It works like
a standard axle
most
of the time, but when one of the rear wheels has no
traction and the other does, the locking feature will
allow the wheel with traction to move the vehicle.
All-Wheel Drive
Your engine’s driving power is sent to all four wheels
for extra traction. All-wheel drive
is like four-wheel
drive, but there is no lever or switch
to engage or
disengage the front axle. It is
fully automatic and adjusts
itself
as needed for road conditions.
Parking Brake
To set the parking brake, hold the regular brake pedal
down with your right foot. Push down the parking brake
pedal with your left
foot. If the ignition is on, the brake
system warning light will come on.
To release the parking brake, hold the regular brake
pedal down. Pull the
BRAKE RELEASE
lever.
It is located on the
bottom driver’s side of the
instrument panel.
NOTICE:
Driving with the parking brake on can cause
your rear brakes to overheat. You may have to
replace them, and you could
also damage other
parts of your vehicle.
If you are towing a trailer and you must park on a hill,
see “Towing
a Trailer” in the Index. That section shows
what to do first to keep the trailer from moving.
2-17
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Q
Leaving Your Vehicle With the
T“-lgi-- - Yunning
It can be dangerous to leave your vehicle with
the engine running. Your vehicle could move
suddenly if the shift lever is not fully in
PARK (P)
with the parking brake firmly set. And, if you
leave the vehicle with the engine running, it could
overheat and even catch fire. You or others could
be injured. Don’t leave your vehicle with the
engine running unless you have to.
If you have to leave your vehicle with the engine
running, be sure to firmly set your parking brake and
shift into PARK (P) before you leave
it. After you’ve
moved the shift lever into the PARK (P) position, hold
the regular brake pedal down. Then, see
if you can move
the shift lever away from PARK (P) without first pulling
it toward you. If you can, it means that the shift lever
wasn’t
fully locked into PARK (P).
Torque Lock
If you are parking on a hill and you don’t shift your
transmission into PARK (P) properly, the weight of the
vehicle may
put too much force on the parking pawl in
the transmission. You may find it difficult to pull the
shift lever out of PARK
(P). This is called “torque lock.”
To prevent torque lock, set the parking brake and then
shift into PARK (P) properly before
you leave the
driver’s seat.
To find out how, see “Shifting Into
PARK
(P)” in the Index.
When
you are ready to drive, move the shift lever out of
PARK (P) before you release the parking brake.
If torque lock does occur, you may need
to have another
vehicle push yours a
little uphill to take some of the
pressure from the transmission,
so you can pull the shift
lever out of PARK
(P).
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Anti-Lock Brake System Warning Light
With the anti-lock brake
system, this light will come
on when you start your
engine and may stay on
for several seconds.
That‘s normal.
Engine Coolant Temperature Gage
This gage shows the engine
coolant temperature.
If the
gage pointer moves into the
red area, your engine is
too hot!
If the light stays on, or comes on when you’re driving,
your Oldsmobile needs service. If the regular brake
system warning light isn’t
on, you still have brakes, but
you don’t have anti-lock brakes.
If the regular brake
system warning light is also on, you don’t have anti-lock
brakes and there’s a problem with your regular brakes.
See “Brake System Warning Light” earlier in this part.
The anti-lock brake system warning light should come
on briefly when you turn
the ignition key to RUN. If the
light doesn’t come on then, have
it fixed so it will be
ready
to warn you if there is a problem. It
means that your engine coolant has overheated.
Tf you
have been operating your vehicle under normal driving
conditions, you should pull off the road, stop your
vehicle and turn off the engine
as soon as possible.
In “Problems on the Road,”
this manual shows you what
to do. See “Engine Overheating” in the Index.
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Driving Downhill
When off-roading takes you downhill, you’ll want to
consider
a number of things:
How steep is the downhill? Will I be able to maintain
vehicle control?
What’s the surface like? Smooth? Rough? Slippery?
Hard-packed dirt? Gravel?
Are there hidden surface obstacles? Ruts?
Logs? Boulders?
What’s at the bottom of the hill? Is there a hidden
creek bank or even
a river bottom with large rocks?
If you decide you can go down a hill safely, then try to
keep your vehicle headed straight down, and use
a low
gear. This way, engine drag can help your brakes and
they won’t have to do all the work. Descend slowly,
keeping your vehicle under control at all times.
Heavy braking when going down a hill can cause
your brakes to overheat and fade. This could cause loss
of control and a serious accident. Apply the
brakes lightly when descending a hill and use a low gear to keep vehicle speed under control.
Are there
some things I should not do when
driving down a hill?
A: Yes! These are important because if you ignore them
you could lose control and have
a serious accident.
When driving downhill, avoid turns that take you
across the incline
of the hill. A hill that’s not too
steep to drive down may be too steep
to drive across.
You could roll over if you don‘t drive straight down.
Never go downhill with the transmission in
NEUTRAL
(N). This is called “free-wheeling.” Your
brakes will have to do all the work and could
overheat and fade.
4-21
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When towing a trailer, the green 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 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. Tf 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
(P) 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.
4-50
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Engine Overheating
You will find a coolant temperature gage on your
vehicle’s instrument panel.
If Steam Is Coming From Your Engine
Steam from an overheated engine can burn you
badly, even if you just open the hood. Stay away
from the engine
if you see or hear steam coming
from it. Just turn it off and get everyone
away
from the vehicle until it cools down. Wait until
there is no sign of steam or coolant before
opening the hood.
If you keep driving when your engine is
overheated, the liquids in it can catch fire. You or
others could be badly burned. Stop your engine if
it overheats, and get out of the vehicle until the
engine is cool.
I NOTICE:
If your engine catches fire because you keep
driving with no coolant, your vehicle can be
badly damaged. The costly repairs would not be
covered by your warranty.
3-11
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If No Steam Is Coming From Your Engine
If you get the overheat warning but see or hear no
steam, the problem may not be too serious. Sometimes
the engine can get a little too hot when you:
Climb a long hill on a hot day.
Stop after high-speed driving.
Idle for long periods in traffic.
0 Tow a trailer.
If you get the overheat warning with no sign of steam,
try this for
a minute or so:
1. Turn off your air conditioner.
2. Turn on your heater to full hot at the highest fan
speed and open the window as necessary.
3. If you’re in a traffic jam, shift to NEUTRAL (N);
otherwise, shift to the highest gear while
driving
-- AUTOMATIC OVERDRIVE (@) or
THIRD
(3).
If you no longer have the overheat warning, you
can drive. Just to be safe, drive slower for about
10 minutes. If the warning doesn’t come back on,
you can drive normally.
If the warning continues, pull over, stop, and park your
vehicle right away.
If there’s still no sign of steam, push the accelerator until
the engine speed is about twice as fast as normal idle
speed. Bring the engine speed back to normal idle speed
after two or three minutes. Now see
if the warning stops.
But then, if you still have the warning,
turn off the
engine
and get everyone out of the vehicle until it
cools down.
You may decide not to
lift the hood but to get service
help right away.
5-12
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How to Add Coolant to the
Coolant Recovery Tank
If you haven’t found a problem yet, but the coolant level
isn’t at the
ADD mark, add a 50/50 mixture of clean
water (preferably distilled) and DEX-COOL TM
(orange-colored, silicate-free) antifreeze at the coolant
recovery tank. (See “Engine Coolant”
in the Index for
more information.)
I
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mix will. Your vehicle’s coolant warning
system
is set for the proper coolant mix. With
plain water or the wrong
mix, your engine could
get too hot but you wouldn’t get the overheat
warning. Your engine could catch fire and you or
others could be burned. Use a
50/50 mix of clean
water and
DEX-COOL TM antifreeze.
I NOTICE:
r
In cold weather, water can freeze and crack the
engine, radiator, heater core and other parts. Use the recommended coolant and the proper
coolant mix.
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