coolant level CADILLAC DEVILLE 1994 7.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine CHECK OIL LEVEL - 36
This message will appear when your engine oil is approximately a quart
low. If this message is displayed, check the
oil and add as needed.
CHECK WASHER FLUID - 25
This message will appear for a few seconds indicating that you need
washer solvent.
CHANGE OIL SOON - 40
This message will appear when your engine oil is less than 10 percent or
the mileage since the last
oil change is more than 6750 miles.
CHANGE ENGINE OIL - 82
This means that the life of your engine oil has expired and it should be
changed immediately. See engine
oil and filter recommendations in the
Maintenance Schedule. After an
oil change, the Oil Life Index must be
reset. See “Oil Life Indicator” in the index
on how to reset it.
CRUISE ENGAGED - 43
This message will appear for a few seconds when you select a speed to
cruise at.
ENGINE COOLANT HOT - 44
This message will appear when your engine coolant temperature is over
126°C (259OF). To avoid added strain on a hot engine, turn off your
Climate Control system, and stop and allow your vehicle to idle until it
cools down or the message
is removed. If it does not cool down, turn off
your engine and have it serviced before driving it again. Severe engine
damage can result from an overheated engine. See “Engine Overheating”
in the Index.
ENGINE HOT - A/C COMPRESSOR OFF - 16
This message will appear when the Climate Control is in “Auto” or
“Defrost” and the engine coolant is hotter than the normal operating
temperature.
To avoid added strain on a hot engine the air conditioning
compressor is automatically turned
off. When that happens, air
conditioned air is not delivered.
If the coolant temperature returns to
normal, the
A/C operation returns to normal.
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Downloaded from www.Manualslib.com manuals search engine AUTO
With this setting, the air conditioning compressor cycles when needed to
cool the air and it’s all automatic. In cold weather when the system senses
- the need for heat, the air flow will be directed out the floor ducts. As the
interior temperature approaches the desired setting, the blower speed
will decrease and the air flow could be directed through the defroster and
floor ducts.
To maintain interior comfort, the air flow may move to the air
outlets and floor ducts (Bi-level). On bright sunny days
in cold weather,
the air
flow could even come out the A/C outlets to maintain comfort and
prevent stuffiness.
Electronic Climate Control Features
-
~.
~
A/C Purge
- .. If your vehicle is sitting out on a hot day and you have it set on AUTO,
the air will first flow out the floor air ducts for a few seconds. That is
normal. This is to expel hot air in the air ducts.
As the air is cooled, the
__ flow will move through the A/C outlets. If you start your vehicle with the
fan setting on “HI” it will skip the
A/C Purge.
Cold Weather Purge
-- On cold days when your system is first turned on, in either the AUTO or
ECON setting and the fan setting is not on “HI”, a small amount of air
will flow through the defroster duct while the system is waiting for the
breath from fogging your windshield.
As the coolant warms up? the
blower speed will gradually increase and air will
flow from the heater
normal conditions.
-. . engine coolant to warm up enough to provide heat. This prevents your
-~ outlets, with some bleed to the windshield to prevent fogging under most
Manually Recirculate Inside Air
I.
There may be times, when you don’t want air from the outside. To
recirculate the air from the inside only, in either “AUTO” or “ECON”
setting, just set the temperature to 60 F (16 C) and adjust your fan - speed, if the air quantity is too high.
DEFOG
c_ Push this button to divide the air between the windshield and the heater
ducts. This is Lseful when fog appears on the windshield or side glass due
to a sudden rainy or snowy condition.
153

Downloaded from www.Manualslib.com manuals search engine The coolant level should be at or above the FULL COLD marking on the
coolant recovery tank.
If it isn’t, you may have a coolant leak somewhere
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, check to see if the electric engine fans are
running.
If the engine is overheating, both fans should be running. If they
aren’t, your vehicle needs service.
229

Downloaded from www.Manualslib.com manuals search 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 near
“FULL COLD” on the coolant recovery tank, 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 ififormation
about the proper coolant mix)
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NOTICE:
In cold weather, water can freeze and crack the engine, radiator,
heater core and other parts. Use the recommended coolant.
230

Downloaded from www.Manualslib.com manuals search engine 6. Start the engine
and let it run until
you can
feel the
upper radiator hose
getting hot.
Watch out for the
engine fans.
7. By this time the coolant level inside the radiator filler neck may be
lower. If the level is lower, add more of the proper mix to the radiator
until the level reaches the base
of the radiator filler neck.
8. Replace the
pressure cap. Be
sure the arrows on
the pressure cap
line up like this.

Downloaded from www.Manualslib.com manuals search engine When the correct fluid level is obtained, push the dipstick back in all -
the way.
ENGINE COOLANT 7
The following explains your cooling system and how to add coolant when (. I
it is low. If you have a problem with engine overheating, see “Engine
Overheating” in the Index.
The proper coolant for your Cadillac will:
0 Give freezing protection down to -34°F (-37OC) .
0 Give boiling protection up to 262 F (128 C) .
0 Prote-ct against rust and corrosion.
Help keep the proper engine temperature.
Let the warning-lights work as they shoula.
What to Use
Use a mixture of one-half clean water (preferably distilled) and one-half
antifreeze that meets
“GM specification 1825-M,” which won’t damage
aluminum parts. You can also use
a recycled coolant conforming to GM
Specification
1825-M with a complete coolant flush and refill. Use GM
Engine Coolant Supplement (sealer) with any complete coolant change.
If you use this mixture, you don’t need to add anything else.
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Downloaded from www.Manualslib.com manuals search engine .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
OF others could be burned. Use a 50/50 mix of clean
water and
a proper antifreeze.
NOTICE:
If you use an improper coolant mix, your engine could overheat
and be badly damaged. Therepair cost wouldn’t be covered
by
your warranty. Too much water in the mix can freeze and crack
the engine, radiator, heater .coreand other parts.
Adding Coolant
The Coolant Recovery Tank is located on the right side of your vehicle.
To Check Coolant
When your -engine is cold, the coolant level should be at the FULL
COLD mark or a little higher. When your engine is warm, the level
should be up to
FULL HOT mark or a little higher.
To Add Coolant
If you need more coolant, add the proper mix at the coolant recoverv
tank.
271

Downloaded from www.Manualslib.com manuals search engine r
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Driver Information Center Messages .................. 142
Driver’s Side S.I.R. (“Air Bag”)
........................ 30
Driving
AndtheRoad. Your
.............................. 176
AtNight
....................................... 191
Defensive
...................................... 176
Hill and Mountain
............................... 200
InCities
........................................ 196
On
Snow Or Ice ................................. 203
In The Rain
..................................... 193
In Winter
....................................... 202
On A Long Trip ................................. 198
On The Freeway ................................. 197
OnCurves
...................................... 185
Through Deep Standing Water
...................... 88
Winter
......................................... 202
Drunken Driving
................................... 177
E
Economy. Fuel ..................................... 251
Electric Outside Mirror Control ...................... 125
Electrical Equipment. Adding
.................... 158. 313
Electronic Climate Control .......................... ’ 151
Electronic Level Control .....
Electronic Solar Sensor ......
Emergencies. Braking In .....
Emergencies. Steering In .....
Emergency Starting. Discharged
Emergency Towing
..........
Engine
...................... 149
...................... 155
...................... 185
...................... 186
Battery
............... 217
...................... 222
- Block Heater ..................................... 89
Change Oil Indicator
............................. 148
Coolant
........................................ 270
Coolant Heater
................................... 89
Coolant Temperature Warning Light
................ 135
Exhaust ........................................ 100
Oil ............................................ 259
Oil Additives .................................... 264
OilLight
....................................... 135
Oil, When To Change ............................ 264
Overheating
.................................... 226
Ethanol In Gasoline
................................ 250
Exhaust, Caution
................................... 100
Exhaust. Dangerous Gas In
.......................... 100
Expectant Mothers. Use Of Safety Belts By .............. 39
Explanation
of Maint . Service ............. See Maint.‘Book