1996 OLDSMOBILE AURORA cooling

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.
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I 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.
1. You can remove the coolant surge tank pressure cap
when the cooling system, including the coolant surge
tank pressure cap and upper radiator hose,
is no
longer hot.
Turn the pressure cap slowly about
one-quarter
turn to the left and then stop.
If you hear a hiss, wait for that to stop. A hiss means
there
is still some pressure left.
5-21
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Engine Coolant
The cooling system in your vehicle is filled with new
DEX-COOL TM (orange-colored, silicate-free) engine
coolant. This coolant is designed to remain in your
vehicle for
5 years or 100,000 miles (1 66 000 km),
whichever occurs first.
The following explains your cooling system and how
to add coolant when
it is low. If you have a problem
with engine overheating, see “Engine Overheating” in
the Index.
A
50/50 mixture of water and the proper coolant for
your Aurora will:
0 Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 265 “F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as
they should.
NOTICE:
When adding coolant it is important that you use
DEX-COOL TM (orange-colored, silicate-free)
coolant meeting
GM Specification 6277M.
If
silicated coolant is added to the system,
premature engine, heater core or radiator
corrosion may result. In addition, the engine
coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months whichever
occurs first.
What to Use
Use a mixture of one-half cEean, water (preferably
distilled) and one-half
DEX-COOL TM (orange-colored,
silicate-free) antifreeze that meets GM Specification
6277M, which won’t damage aluminum parts. Use
GM Engine Coolant Supplement (sealer) (GM Part
No. 3634621) with any complete coolant change. If
you use this mixture, you don’t need to add anything
else. A special procedure is required for adding sealer;
see the Aurora Service Manual.
(To order a service
manual, see “Service Publications’’ in the Index.)
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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 (orange-colored,
silicate-free) antifreeze.
NOTICE:
If you us& an improper coolant mix, your engine
could overheat and be badly damaged. The
repair cost wouldn’t be covered by your
warranty. Too much water in the mix can freeze
and crack the engine, radiator, heater core and
other parts.
If you have to add coolant more than four times a year,
have your retailer check your cooling system.
I NOTICE:
If you use the proper coolant, you don’t have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
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NOTICE:
The wrong wheel can also cause problems with
bearing life, brake cooling, speedometer/odometer
calibration, headlamp aim, bumper height, vehicle
ground clearance and tire or tire chain clearance
to the body and chassis.
See
“Changing a Flat Tire” in the Index for more
information.
Used Replacement Wheels
I
I 1
i
’ A CAUTION: I
Putting a used wheel on your vehicle is
dangerous. You can’t know how it’s been used or
how many miles it’s been driven. It could
fail
suddenly and cause an accident. If you have to
replace
a wheel, use a new GM original
equipment wheel.
Tire Chains
NOTICE:
Use tire chains only where legal and only when
you must. Use only
SAE Class ccS” type chains
that are the proper size for your tires. Install
them on the front tires and tighten them
as
tightly as possible with the ends securely
fastened. Drive slowly and follow the chain
manufacturer’s instructions.
If you can hear the
chains contacting your vehicle, stop and retighten
them.
If the contact continues, slow down until it
stops. Driving too fast or spinning the wheels
with chains on will damage your vehicle.
6-47
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ENGINE COMPARTMENT
FUSE BLOCK
I II 11 FOGLAMP2 I II I
COOLING
FAN #2
ji
COOLING
FAN #3
Fuse
4
5
6
7
8
9
10
11
12
13
14
Usage
Air Conditioning Center
Open
Open
Horn
Open
Fog Lamp 2
Cooling Fan #2
Cooling Fan #3
Cooling Fan
ABS Main
ABS Pump
Motor
Fog Lamp
Horn
Flash to Pass
6-66
-
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Capacities and Specifications
Automatic Transaxle (Overdrive)
When draining or replacing torque converter, more fluid may be needed.
Pan Removal and Replacement .......................................... 6.5 quarts (6.0 L)
After Complete Overhaul .............................................. 11 quarts (10.5 L)
Cooling System ....................................................... 13 quarts (12.0 L)
Engine Crankcase ...................................................... 7 quarts (6.6 L)
When changingfilter, up to 0.5 quart (0.5 L) more oil may be needed.
Fuel Tank ......................................................... 19.4 gallons (73.4 L)
Windshield Washer Fluid Tanks ........................................ 3.8 quarts (3.6 L)
Windshield Wiper Blades (6.32 Pin Type) ............................... 22 inches (565 mm)
Power Steering
Pump Only ............................................................. 1 pint (0.5 L)
Complete System ..................................................... 1.5 pints (0.7 L)
Tire Pressures, Sizes ....................... See Tire-Loading Information label on driver’s door.
Wheel Nut Torque .................................................. 100 lb-ft (140 Nam)
Refrigerant (R-l34a), Air Conditioning .................. See refrigerant change label the hood.
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Maintenance Schedule
Short Trip/City Definition
Follow the Short Trip/City Maintenance Schedule if any
one of these conditions
is true for your vehicle:
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
Most trips include extensive idling (such as frequent
driving in stop-and-go traffic).
Most trips are through dusty areas.
You frequently tow a trailer or use a carrier on top of
If the vehicle is used for delivery service, police,
One of the reasons you should follow this schedule if you
operate your vehicle under any
of these conditions is that
these conditions cause engine
oil to break down SOOIZ~C
your vehicle.
taxi, or other commercial application.
Short Trip/City Intervals
Every 3,000 Miles (5 000 km): Engine Oil and Filter
Change (or
3 months, whichever occurs first).
Every 6,000 Miles (10 000 km): Chassis Lubrication
(or
6 months, whichever occurs first).
At 6,000 Miles (10 000 km) - Then Every
12,000 Miles (20
000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Air Cleaner Filter
Inspection, if driving in dusty conditions.
At 15,000 Miles (25 000 km) - Then Every
30,000 Miles (50 000 km): Throttle Body Bore and
Valve Plates Inspection.
Every 30,000 Miles (50 000 km): Air Cleaner Filter
Replacement. Fuel Tank, Cap and Lines Inspection.
Every 50,000 Miles (83 000 km): Automatic Transaxle
Service (severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection.
Every 100,000 Miles (166 000 km): Cooling System
Service (or every
60 months, whichever occurs first).
Spark Plug Wire Inspection. Spark Plug Replacement.
These intervals only summarize maintenance services.
Be sure to follow the complete maintenance schedule on
the following pages.
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