engine Oldsmobile Aurora 1997 s Repair Manual

How to Add Coolant to the Coolant
Surge Tank
If you haven’t found a problem yet, but the coolant level
isn’t at
FULL COLD, add a 50/50 mixture of clean
water
(preferably distilled) and DEX-COOL@ coolant at
the coolant surge tank, but be sure the cooling system,
including the coolant surge tank pressure cap, is cool
before you do it. (See “Engine Coolant’’ in the Index
for
more information.)
Steam and scalding liquids from
a hot cooling
system can blow out and burn you badly. They
are under pressure, and if you turn the coolant
surge tank pressure cap
-- even a little -- they
can come out at
high speed. Never turn the
cap when the cooling system, including the
coolant surge tank pressure cap, is hot. Wait
for the cooling system and coolant surge tank
pressure cap to cool if you ever have to turn the
pressure cap.
I

A CAUTION:
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@ coolant.
NOTICE:
In cold weather, water can freeze and crack the
engine, radiator, heater core and other parts.
So
use the recommended coolant.
~~ ~ ~
You
can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol
and it will burn if the engine parts are hot
enough. Don’t spill coolant on
a hot engine.
5-20

3. Then fill the coolant surge tank with the proper mix,
up to FULL COLD. 4. With the coolant surge tank pressure cap off, start the
engine and let
it run until you can feel the upper
radiator hose getting hot. Watch out for the
engine fans.
By this time, the coolant level inside the coolant
surge tank may be lower.
If the level is lower, add
more of the proper mix to the coolant surge tank
until the level reaches FULL COLD.
5-22

Ckanging a Flat Tire
If a tire goes flat, avoid further tire and wheel damage
by driving slowly to a level place. Turn on your hazard
warning flashers.
Changing
a tire can cause an injury. The vehicle
can slip
off the jack and roll over you or other
people. You and they could be badly injured.
Find
a level place to change your tire. To help
prevent the vehicle from moving:
1. Set the parking brake firmly.
2. Put the shift lever in PARK (P).
3. Turn off the engine.
To be even more certain the vehicle won't move,
you can put blocks
at the front and rear of the
tire farthest
away from the one being changed.
That would be the tire on the other side of the
vehicle, at the opposite end.
........................................................................\
....... ........................................................................\
....... ........................................................................\
....... ................. ................. .......................................... ...........................................
The following steps will tell you how to use the jack and
change a tire.
5-24

If You’re Stuck: In Sand, Mud,
Ice or
Snow
What you don’t want to do when your vehicle is stuck is
to spin your wheels too fast. The method known as
“rocking” can help you get out when you’re stuck, but
you must use caution.
I ,A CAUTION: I
If you let your tires spin at high speed, they can
explode, and you or others could be injured.
And, the transaxle or other parts
of the vehicle
can overheat. That could cause an engine
compartment fire or other damage. When you’re
stuck, spin the wheels
as little as possible. Don’t
spin the wheels above
35 mph (55 km/h) as shown
on the speedometer.
I NOTICE:
Spinning your wheels can destroy parts of your
vehicle
as well as the tires. If you spin the wheels
too fast while shifting your transaxle back and
forth, you can destroy your transaxle.
For information about using tire chains on your vehicle,
see “Tire Chains” in the Index.
Rocking Your Vehicle To Get It Out
First, turn your steering wheel left and right. That will
clear the area around your front wheels.
You should turn
your traction control system off. (See “Traction Control
System”
in the Index.) Then shift back and forth
between REVERSE (R) and a forward gear, spinning the
wheels
as little as possible. Release the accelerator pedal
while you shift, and press lightly on the accelerator
pedal when the transaxle is in gear. If that doesn’t get
you out after a few tries, you may need to be towed out.
If you do need to be towed out, see “Towing Your
Vehicle”
in the Index.
5-35

@ Section 6 Service and Appearance Care
Here you will find information about the care of your Aurora. This section begins with service and fuel information,
and then it shows how to check important fluid and lubricant levels. There is also technical information about your
vehicle, and a part devoted to its appearance care.
6-2
6-3
6-8
6-1 1
6-15 6-18
6-2
1
6-27
6-28
6-32
6-33
6-3 7
6-44
6-52 Service
Fuel
Checking Things Under the Hood
Engine Oil
Air Cleaner
Automatic Transaxle Fluid
Engine Coolant Windshield Washer Fluid
Brakes
Battery
Bulb Replacement
Headlamp Aiming
Tires
Appearance Care 6-53
6-57
6-59
6-59
6-60 6-6 1
6-62
6-65
6-72
6-73
6-74
6-74
6-74
6-74 Cleaning the
Inside
of Your Aurora
Cleaning the Outside
of Your Aurora
Underbody Maintenance Chemical Paint Spotting
Appearance Care Materials Chart
Vehicle Identification Number (VIN)
Electrical System
Removing the Rear Seat Cushion
Replacement Bulbs
Capacities and Specifications
Air Conditioning Refrigerants
Engine Specifications
Normal Maintenance Replacement Parts
Vehicle Dimensions
6-1

Adding Equipment to the Outside of Your
Vehicle
Things you might add to the outside of your vehicle can
affect the airflow around it. This may cause wind noise
and affect windshield washer performance. Check with
your Aurora retailer before adding equipment to the
outside of your vehicle.
Fuel
Use premium unleaded gasoline rated at 91 octane or
higher. At a minimum, it should meet specifications
ASTM D4814 in the United States and CGSB 3.5-M93
in Canada. Improved gasoline specifications have been
developed by the American Automobile Manufacturers
Association (AAMA) for better vehicle performance and engine protection. Gasolines meeting the AAMA
specification could provide improved driveability and
emission control system protection compared to
other gasolines.
Be sure the posted octane for premium is at least 9 1. If
the octane is less than 9
1, you may get a heavy knocking
noise when you drive. (In an emergency, you may be
able to use a lower octane
-- as low as 87 -- if heavy
knocking does not occur.)
If you’re using 91 or higher
octane unleaded gasoline and you hear heavy knocking,
your engine needs service.
If your vehicle is certified to meet California Emission
Standards (indicated on the underhood tune-up label), it
is designed to operate on fuels that meet California
specifications. If such fuels are 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 on
your instrument panel may turn on and/or your vehicle
may fail a smog-check test.
If this occurs, return to your
authorized Aurora retailer for diagnosis to determine the
cause of failure.
In the event it is determined that the
cause of the condition is the type of fuels used, repairs
may not be covered by your warranty.
Some gasolines that are not reformulated for low
emissions contain an octane-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl (MMT);
ask your service station operator whether or not his fuel
contains MMT. General Motors does not recornend the
use of such gasolines.
If fuels containing MMT are used,
spark plug life may be reduced and your emission
control system performance may be affkcted. The
malfunction indicator lamp on your instrument panel
may turn on.
If this occurs, return to your authorized
Aurora retailer for service.
6-3

To provide cleaner air, all gasolines in the United States
are now required to contain additives that will help
prevent deposits from forming in your engine and fuel
system, allowing your emission control system to
function properly. Therefore, you should not have to add
anything to the fuel. In addition, gasolines containing
oxygenates, such as ethers and ethanol, and
reformulated gasolines may be available in your area to
help clean the air. General Motors recommends that you
use these gasolines if they comply with the
specifications described earlier.
NOTICE:
Your vehicle was not designed for fuel that
contains methanol. Don’t use it. It can corrode
metal parts in your fuel system and also damage
plastic and rubber parts. That damage wouldn’t
be covered under your warranty.
Fuels in Foreign Cou ;ries
If you plan on driving in another country outside the
United States or Canada, the proper fuel may be hard
to
find. Never use leaded gasoline or any other fuel not
recommended in the previous text on fuel. Costly repairs
caused by use of improper fuel wouldn’t be covered by
your warranty.
To check on fuel availability, ask an auto club, or
contact a major oil company that does business in the
country where you’ll be driving.
You can also write us at the following address for
advice. Just tell us where you’re going and give your
Vehicle Identification Number (VIN).
General Motors International Product Center
1908 Colonel Sam Drive
Oshawa, Ontario
L 1 H 8P7
6-4

Checking Things Under the Hood
I k!, 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
I
Things that burn can get on hot engine parts and start
a fire. These include liquids like gasoline,
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.
The following sections tell you how
to check fluids,
lubricants and important parts underhood. Hood Release
To open the hood,
first pull
the
hood release handle
inside the vehicle, located
to
the left of the steering wheel
under the instrument panel.
6-8

4.0L Engine
When you open the hood, you’ll see: ~
A. Remote Positive
Battery Terminal
B. Windshield Washer
Fluid Reservoir C. Power Steering
Fluid Reservoir
D. Engine Oil
Fill Cap
E. Engine Oil Dipstick
F. Brake Fluid Reservoir
G. Automatic Transaxle Fluid
Dipstick (behind air cleaner)
H. Engine Coolant Surge Tank
I. Air Cleaner
6-10