coolant temperature OLDSMOBILE AURORA 1995 Owners Manual

Engine Coolant Temperature Gage
This gage shows the engine coolant temperature.
If the gage pointer moves into the red warning zone,
your engine is hot. To prevent engine overheating, the
air conditioning compressor will
turn off automatically,
a fdst-pulsed chime
will sound, and the message
ENGINE
HOT ... A/C OFF will appear in the information
center.
As the engine cools down, the air conditioning
compressor will automatically turn back on.
If the coolant temperature is over 26 1 OF (127”C), the
message
HOT ... STOP ENGINE will appear. 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.
In “Problems on the Road,’? this manual shows what to
do. See “Engine Overheating”
in the Index.
If your coolant level is low, the message LOW ENGINE
COOLANT will appear 011 the Driver Information
Center. Check your coolant level as soon
as possible.
See “Engine Coolant”
in the Index.
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AUTO-PUSH: To allow the system to automatically
control
the temperature, air distribution and Fdn speed:
1. Set the temperature you want with the colored
temperature buttons.
2. Press the AUTO-PUSH switch. The AUTO light will
appear below the selector.
To maintain proper comfort, the air flow direction
will
automatically change with increases or decreases in
outside temperature, interior temperature, or sun load.
After starting a cold engine, there may be up to a
four-minute delay before the fan is turned on. The fan
will automatically increase
in speed as the coolant
temperature rises.
AUTO FAN: Sets the fan speed. Turn this knob to the
right to raise
the fan speed, to the left to lower the fan
speed. The fan speed
will be displayed by the lights
around the knob (except
in the AUTO mode).
Use the following controls when you wish to override
the AUTO setting.
Directional Controls
When the AUTO-PUSH knob is pressed, the fan speed
will go
to AUTO unless you select a different speed.
After
you turn the knob to a directional control, the set
interior temperature
will be displayed for about five
seconds,
then the outside temperature will be displayed
"ri Upper: Directs air flow through the upper air
outlets
in the instrument panel.
f0 /I' Bi-Level: Use on cool, but sunny days. This
setting brings
in the outside air, but directs it in two
ways. The cool air is directed
to the upper portion of
your body through the instrument panel outlets, but most
warmed air is directed through the heater ducts and
a
little to the defrost and side window vents. At times, this
temperature difference may be more apparent than
others.
3-3
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Engine Overheating
You will find a coolant temperature gage on your
Aurora’s instrunlent panel. Your information center
will
also display messages about engine overheating. See
“Coolant Temperature Gage“
in the Index.
Overheated Engine Protection Operating Mode
Should a low coolant condition exist and the message
HOT STOP ENGINE display, an overheat protection
mode which alternates firing groups of four cylinders
helps prevent engine damage. This operating mode
allows
YOLIP vehicle to be driven to a safe place in an
emergency; you may drive
up to 50 miles (80 km).
Towing a trailer in the overheat protection lnode should
be avoided.
NOTICE:
After driving in the “Overheated Engine
Protection Operating Mode,” to avoid engine
damage, allow the engine to cool before
attempting any repair. The engine oil may be
severely degraded. Change the oil and reset the
oil life indicator. See “Engine Oil, When to
Change” in the Index.
If Steam Is Coming From Your Engine
5-13
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Engine Coolant
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.
The proper coolant for your Aurora will:
0 Give freezing protection down to -34°F (-37°C)
0 Give boiling protection up to 262°F (128°C).
0 Protect against rust and corrosion.
0 Help keep the proper engine temperature.
0 Let the warning lights work as they should.
What to Use
Use a mixture of one-half c.lt.crr~ wwtor (preferably
distilled) and one-half antifreeze that meets “GM
Specification 182S-M,” which won‘t damage aluminum
parts.
You call also use a recycled coolant conforming to
GM Specification 1825-M
with a complete coolant tlush
and refill. Use GM Engine Coolant Supplement (sealer)
with any cotnplete coolant flush and refill. If you use
this mixture, you don‘t need to add anything else.
A
special procedure is required for adding sealer; see the
ALI~o~~ Service Manual. (To order a service 1nanual. see
”Service Publications“
in the Index.)
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To Add Coolant
If you need more coolant, add the proper mix at the
surge tank, but only when the engine is cool.
When replacing the pressure cap, make sure it is tight.
Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow of coolant through the radiator until the coolant
reaches a preset temperature.
When you replace your thermostat, an AC@ thermostat
is recommended.
Power Steering Fluid
How To Check Power Steering Fluid
When the engine compartment is cool, unscrew the cap
and wipe the dipstick with a clean rag. Replace the cap
and completely tighten it. Then remove the cap again
and look at the fluid level on the dipstick.
The level should be at the
FULL COLD mark. Add
enough fluid to bring the level up to the mark.
A fluid loss in this system could indicate a problem.
Have the system inspected and repaired.
6-21
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Chemical Paint Spotting .......................... 6-49
Children and Safety Belts
................... 1.30 . 1-40
Chilcl
Restraints
................................ 1-32
Cigar Lighters
................................. 2-56
Circuit Breakers and Fuses
....................... 6-54
Cleaner. Air
.............................. 6- 14.6-61
Cleaning
Aluminum Wheels ........................... 6-48
Antenna .................................... 3-3 1
Cassette Player and Tapes ...................... 3-29
Compact Discs .............................. 3-30
Fabric
..................................... 6-44
Glass ...................................... 6-46
Inside Your Aurora
........................... 6-43
Instrument Panel
............................. 6-46
Leather
.................................... 6-46
Outside Your Aurora
.......................... 6-47
Safety Belts
................................. 6-46
Underbody Maintenance
....................... 6-49
Vinyl
...................................... 6-45
Weatherstrips
............................... 6-47
Windshield and Wiper Blacks
................... 6-47
Clock. Setting the
................................ 3-9
Cluster
. Instrument Panel ......................... 2-60
Comfort Controls
Automatic Electronic Climate Control
............. 3- I
Dual Temperature Control ...................... 3-6
Steering Wheel Touch Controls
.................. 3-8
Compact Disc Care
............................. 3-30
City Driving ................................... 4-18 Compact
Disc Player
....................... 3- 13 . 3-21
Compact Spare Tire
............................. 5-29
Control
of a Vehicle .............................. 4-5
Controls . Features and ............................ 2-1
Convenience Net ............................... - 3-52
Coolant
Checking and Adding .................... 5- 16 . 6-20
Engine
..................................... 6-19
Engine . Temperature Gage ..................... 2-69
Heater
..................................... 2-18
Proper Mixture
to Use ........................ 6-19
Safety Warnings
................... 5- I3 . 5- 16. 5-17
Cornering Lamps
............................... 2-40
Courtesy Lamps
................................. - 7-9
Cruise Control ................................. 2-34
Cupholders
.................................... 2-55
Customer Assistance Hearing/Speech Impaired
....................... 8-2
Satislhctioll Procedure ......................... 8-1
Daytime Running Lamps ........................ 2-41
Defensive Driving
............................... 4-1
Dcfogger. Rear Window .......................... 3-7
Defrost
........................................ 3-6
Disc Brake Wear Indicators
....................... 6-25
Disposal
of Used Oil ............................ 6-14
Distance to Destination
.......................... 2-77
Door Asjar Reminder ............................. 2-4
DoorLocks
..................................... 2-3
9-3
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Driver Information Center ........................ 2-72
Driving
City
....................................... 4-18
Curve ..................................... 4-10
Defensive ................................... 4- 1
Drunken .................................... 4-2
Foreign Country .............................. 6-4
Freeway .................................... 4-19
Hill and Mountain Roads ...................... 4-22
Long Distance ............................... 4-20
Night ...................................... 4-14
Through Deep Standing Water .................. 2- 18
Rain ....................................... 4-16
Winter ..................................... 4-23
With a Trailer ............................... 4-30
Dual Temperature Control ......................... 3-6
Drunken Driving ................................ 4-2
Electric Outside Mirror Control ................... 2-5 1
Electrical Equipment. Adding ........... 2.57. 3.29. 6-52
Electrochromic Day/Night Rearview Mirror .......... 2-50
Electronic Level Control ......................... 4-29
Emergency
Braking
..................................... 4-9
Starting ..................................... 5-2
Steering .................................... 4- 1 1
Towing ..................................... 5-8
Engine
Accessory Belt
.............................. 6-10
BlockHeater ................................ 2-18
Coolant .......................... 5- 15. 6- 19. 6-60
Coolant Heater .............................. 2-18
Coolant Temperature Gage ..................... 2-69
Exhaust .................................... 2-28
Identil'ication (VIN) .......................... 6-51
Overheating
................................. 5-13
Starting .................................... 2-16
Engineoil .................................... 6-10
Additives ................................... 6-13
Capacity ................................... 6-60
Checking and Adding ......................... 6-11
Life Monitor ................................ 2-75
Pressure Warning Light ....................... 2-70
Estimated Time of Arrival (ETA) .................. 2-77
Ethanol In Gasoline .............................. 6-3
Exhaust
Dangerous
Gas in ....................... 2- IO. 2-28
Extender. Safety Belt ............................ 1-43
Parking with the Engine Running ........... 2-26. 2-28
Expectant Mothers. Use of Safety Belts ............. 1-23
Fabric Cleaning
............................... 6-44
Features and Controls ............................ 2-1
Filling the Fuel Tank ............................. 6-5
9-4
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Fi Iter
Air Cleaner ............................ 6- I4 . 6-0 1
Oil ................................... 6-13.6-61
Finish Care .................................... 6-48
Finish Damage
................................. 6-49
First
Gear ..................................... 2-23
FIash-To-Pass
................................. 2-40
Flashers . Hazard Warning ......................... 5- 1
FlatTire ...................................... 5-21
Flooded Engine ................................ 2- I 7
Flow-Through Ventilation System ................... 3-8
Fluid
B~ke
................................. 6-23.7-41
Capacities
.................................. 6-60
Power Steering .................... 6-2 I . 6-60 . 7-4 I
Windshielcl Washer ...................... 2.32 . 6-22
Fluids and Lubricants
....................... 6.60 . 7-41
Tral1saxlc
......................... 6- I6 . 6-60 . 7-4 1
Fog Lamps .................................... 2-41
Forcip
Operation ............................... 6-1
Fratyais . Guide En ................................. II
Freeway Driving ............................... 4- 19
French Language M:111~1al II
Capacity ................................... 6-60
Door Release. Manual ......................... 6-5
..
.. ...........................
Fuel .......................................... 6-2
Door Release . Ket11ote ......................... 6-4
Ecotlolny ................................... 2-73
Filling the Tank
............................... 6-S
Gage ...................................... 2-71
It1 Foreign Counttics ........................... 6-4
LAW Fuel M~SS~I~C ...........................
FLIW Usage Charts .................... 6-56 . 6.57. 6-58
Fuses
and Circuit Breakers ....................... 6-54
Gage
Enginc Coolant Temperature ................... 2-69
Garage
Door Opener. HomeLink Universal .......... 2-48
Fliel
....................................... 2-71
G~age
Door OI3eller Storage ...................... 2-44
Garl11e11t
Hook ................................. 2-56
Gasoline
....................................... 6-2
Gasoline Tank Filling
............................. 6-5
Gear Positions ................................. 2-20
Glass Cleaning ................................. 6-46
GIOV~BOX
.................................... 2-12
Halogcn
Bulbs ........................... 6.27. (3-30
Hazard Warning Flashers .......................... 5-1
Headlamps
Aiming
.................................... 6-28
Circuit Br-eaker
.............................. 6-59
High-Low Beam
............................. - 3-39
Head Restraints ................................. 1-4
Hearing Impaired Assistuncc ....................... 8-2
Healed Seats .................................... 1-4
Heater ......................................... 3-3
Bulb ReplilccI11ct1t ............................ 6-30
9-5
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