1995 OLDSMOBILE AURORA overheating

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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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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The coolant level
should be at or above
FULL COLD. If it
isn’t and the LOW
ENGINE COOLANT
message appears on
the Driver Inforn~ation
Center, you may have
a leak
in the radiator
hoses, heater hoses,
radiator, water
pump
or somewhere else in
the cooling system.
I NOTICE:
Engine damage if you keep running your engine
without coolant isn’t covered by your warranty.
See “Overheated Engine Protection Operating
Mode” in the Index.
I
If there seems to be no leak, with the engine on, check to
see if the electric engine fan(sj are running. If the engine
is overheating, both fan(sj should be running. If they
aren’t, your vehicle needs service.
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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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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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