engine coolant OLDSMOBILE BRAVADA 1994 Owners Manual

How to Use this Manual
These symbols are on some of your
controls: These symbols
are used on warning
and indicator lights: Here
are some other symbols you
may see:
Windshield Wipers
Engine Coolant
Temperature Fuse
w Windshield
Washer
Battery Charging
System Tailgate Window
Windshield Defroster Lighter
Fuel
Rear Window Defogger Horn
Speaker
Engine
Oil Pressure
Rear Window Wiper
Brake
Hood Release
Rear Window
WiperlWasher Anti-Lock Brakes
Ventilating Fan
Power Window
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Engine Coolant Heater (Engine
Block Heater)
(OPTION)
In very cold weather, 0°F (-18°C) 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
3. Plug it into a normal, grounded 110-
electrical cord.
volt outlet.
NOTICE:
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
warmer plugged in? The answer
depends on the weather, the kind of oil
you have, and some other things.
Instead of trying to list everything here,
we ask that you contact an Oldsmobile
dealer
in the area where you’ll be
parking your vehicle. The dealer can
give you the best advice for that
particular area. I
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U
E/M sw&h (ELECTRONIC CLUSTER)
To change your electronic display from
English to metric units, or from metric
co English, press this switch down. The
gages affected are:
Speedometer
Odometer
Trip Odometer
Oil Pressure
Engine Coolant Temperature
mn-irrnrIII
The tachometer displays the engine
speed in revolutions per minute (rpm)
.
NOTICE:
Do not operate the engine with the
tachometer in the red area, or
engine
damage may occur.
4"' UNLEADED FUEL ONLY c
he/ Gage (STANDARD CLUSTER)
Your fuel gage tells you about how
much fuel you have left, when the
ignition is on. When the indicator nears
E (Empty), you will have a little fuel left
but should get more soon.
Here are four things that some owners
ask about. None of these show a
problem with your fuel gage:
At the service station, the gas pump
shuts off before the gage reads
F (Full) .
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VOLTS
Voltmeter (STANDARD CLUSTER)
Your charging system gage will show
the rate of charge when the engine is
running. When the engine is not
running but the ignition is on (in the
Run position), the display measures thc
voltage output of your battery.
The reading will change as the rate
of
charge changes (with engine speed,
etc.), but readings between the warning
zones indicate the normal operating
range. Readings in either warning zone
indicate a possible problem with your
charging system. Have your Oldsmobilc
serviced immediately.
-100
Engine Coolant Temperature
Gage
(STANDARD CLUSTER)
This gage shows the engine coolant
temperature. If the gage pointer moves
into the red area, your engine is too
hot!
It means that your engine coolant
has overheated.
If 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.
HOT COOLANT CAN BURN
YOU
BADLY!
In
Problems on the Road, this manual
shows what to do. See the
Index under
Engine Overheating.
0
0
0
Fuel Gage (ELECTRONIC CLUSTER)
Your fuel gage bars light up when the
ignition is on
to show you about how
much fuel you have left.
When the gage first indicates empty,
you still have
a little fuel left, but you
should get more soon.
A box around the gas pump symbol wil:
flash when your tank is
1/8 full or less.
Here are five things that some owners
ask about. None of these show
a
problem with your fuel gage:
At the service station, the gas pump
shuts
off before the gage reads full.
The top bar does not go out until you
have driven a long distance-about
3r
miles (48 kilometers).
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Features & Controk
88
Engine Coolant Temperature Gage
pcmoNIc CLUSTER)
This gage has bars that show the engine
coolant temperature.
A box around the temperature symbol
will flash when your engine
is too hot.
It means that your engine coolant has
overheated. If 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.
HOT COOLANT
CAN BURN YOU
BADLY!
In ProbZems on the Road, this manual
shows what to do. See the
Index under
Engine Overheating.
~
Brake System Warning Light
Your Oldsmobile’s hydraulic brake
system is divided into two parts.
If one
part isn’t working, the other part can
still work and stop you. For good
braking, though, you need both parts
working well.
If the warning light comes on, there
could be a brake problem. Have your
brake system inspected right away.
This light should come on as you start
the vehicle. If it doesn’t come on then,
have it fixed
so it will be ready to warn
you
if there’s a problem.
If the light comes on while you are
driving, pull off the road and stop
carefully.
You may notice that the pedal
is harder to push. Or, the pedal may go closer
to the floor. It may take longer to
stop.
If the light is still on, have the
vehicle towed for service. (See
Towing
Your Truck in the Index.)
The brake system warning light will also
come on when you set your parking
brake, and it will stay on
if your parking
brake doesn’t release fully. If it stays
on
after your parking brake is fully released,
it means you have a brake problem.
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ducts at your feet. At times this
temperature difference may be more
apparent than others.
VENT: The vent setting brings in
outside air through the instrument
panel outlets and at your front side
windows.
HTR The heater setting brings in most
heated air through the heater ducts, and
some through the defroster vents.
If you have the optional engine coolant
heater and use it during cold weather,
20°F (-8°C) or lower, your heating
system will more quickly provide heat
because the engine coolant is already
warmed. See the
Index under Engine
Coolant Heater.
most of the warmed air to the
windshield and side windows. Some
will also
go to the floor vents.
The air conditioner will also run in this
setting to remove moisture from the air
when the temperature is above
40°F
(4°C). Adjust the temperature control
as desired.
(Defrost): This setting directs
Defogging and Defrosting
To rapidly defrost the windshield, slide
the temperature control lever all the
way up and select the
(j@ setting.
Adjust the fan to the highest speed.
To rapidly defog the side windows,
select the
BI-LEV AfC setting and
adjust the fan to the highest speed. Aim
the side vents toward the side windows.
For increased air flow to the side vents,
close the center vents.
r
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Your Driving and the Road
130
Winter Driving
Here are some tips for winter driving:
Have your Oldsmobile in good shape
for winter. Be sure your engine
coolant mix is correct.
You may want to put winter
emergency supplies in your vehicle.
Include an ice scraper,
a small brush or
broom,
a supply of windshield washer
fluid,
a rag, some winter outer clothing,
a small shovel, a flashlight, a red cloth,
and a couple of reflective warning
triangles. And, if you will be driving
under severe conditions, include a small
bag of sand, a piece of old carpet or a
couple
of burlap bags to help provide
traction. Be sure you properly secure
these items in your vehicle.
Driving on Snow or Ice
Most of the time, those places where
your tires meet the road probably have
good traction.
However,
if there is snow or ice
between your tires and the road, you
can have a very slippery situation.
You’ll have a lot less traction or “grip”
and will need to be very careful.
What’s the worst time for this? “Wet
ice.” Very cold snow or ice can be slick
and hard to drive on. But wet ice can be
even more trouble because it may offer
the least traction of all. You can get
“wet ice” when it’s about freezing
(32°F; 0.C) and freezing rain begins to
fall. Try to avoid driving on wet ice until
salt and sand crews can get there. Whatever
the condition
- smooth ice,
packed, blowing or loose snow
- drive
with caution.
Accelerate gently. Try not to break the
fragile traction. If you accelerate too fast,
the drive wheels will spin and polish the
surface under the tires even more.
Your anti-lock brakes improve your ability to make a hard stop on
a slippery
road. Even though you have an anti-lock
braking system, you’ll want to begin
stopping sooner than you would on dry
pavement. See
Anti-Lock in the Index.
Allow greater following distance on
any slippery road.
Watch for slippery spots. The road
might be fine until you hit a spot
that’s covered with ice. On an
otherwise clear road, ice patches may
appear in shaded areas where the sun
can’t reach: around clumps of trees,
behind buildings, or under bridges.
Sometimes the surface of a curve or
an overpass may remain icy when the
surrounding roads are clear.
If you see
a patch of ice ahead of you, brake
before you are on it. Try not to brake
while you’re actually on the ice, and
avoid sudden steering maneuvers.
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When your vehicle is being towed, have
the ignition key off. The steering wheel
should be clamped in a straight-ahead
position, with a clamping device
designed for towing service.
Do not use
the vehicle’s steering column lock for
this. The transmission should be in
P (Park) and the parking brake
released.
Don’t have your Bravada towed with
the wheels in contact with the ground.
If your vehicle is being towed with
sling-type or wheel-lift equipment,
either the front or rear wheels must be
supported on a dolly.
If towing your Bravada with a car
carrier, block supports may be required
to prevent damage to the vehicle.
Engine Overheating
You will find a coolant temperature
;age and the warning light about
a hot
mgine on your Oldsmobile’s instrument
)anel.
If Steam Is Coming From Your
Engine
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Problems on the Road
146
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.
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.
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
N (Neutral). If
you no longer have the overheat
warning, you can drive. Just to be safe,
drive slower for about ten 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.
Cooling System
When you decide it’s safe to lift the
hood, here’s what you’ll see:
(A) Coolant recovery tank
(B) Radiator pressure cap
If the coolant inside the coolant
recovery tank is boiling, don’t do
anything else until it cools down.
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The coolant level should be at or above
the
FULL HOT mark. If it isn’t, you
may have a leak in the radiator hoses,
heater hoses, radiator, water pump or
somewhere else in the cooling system.
NOTICE:
Engine damage from running your
engine without coolant isn’t
covered by your warranty.
If there seems to be no leak, start the
engine again. See if the fan speed
increases when idle speed is doubled by
pushing the accelerator pedal down. If
it doesn’t, your vehicle needs service.
Turn off the engine.
How to Add Coolant to the
Coolant Recovery Tank
If you haven’t found a problem yet, but
the coolant level isn’t at or above the
FULL HOT mark, add a 50/50 mixture
of
clean water (preferably distilled) and
a proper antifreeze at the coolant
recovery tank. (See
Engine Coolant in
the
Index for more information about
the proper coolant mix.)
I NOTICE: I
In cold weather, water can freeze
and crack the engine, radiator,
heater core and other parts. Use the
recommended coolant.
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