1996 CADILLAC ELDORADO engine coolant

Downloaded from www.Manualslib.com manuals search engine 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
outlets for a few seconds. That is normal. This
is to
expel hot air in the air outlets. As the air is cooled, the
airflow 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.
To avoid blowing cold air in cold weather, the system
will delay turning on the fan until warm air is available.
The length of delay depends on the outside air
temperature, engine coolant temperature or the time
since the engine was last started.
As the coolant warms
up, the blower fan speed will gradually increase and
air will flow from the heater outlets, with some airflow
to the windshield
to prevent fogging under most
normal conditions.
If you leave your vehicle, the system will remember the
control setting the next time you start your engine,
except for recirculation and defrost. Each ignition cycle
cancels recirculation, whereas,
DEFROST will change
to AUTO when the ignition is shut
off and then turned
back on.
Manual Operation
RECIRCULATION: Press this button to limit the
amount of fresh air entering your vehicle. This
is helpful
when you are trying to cool the air quickly or limit odors
entering your vehicle. In the AUTO mode, the system
will use recirculation as necessary to cool the air.
Pressing the recirculation button will change the
operation
to a manual mode and the air will recirculate
non-stop. Press this button again
to turn off the
recirculation feature.
If you notice the windows fogging, press the
recirculation button to exit the recirculation mode.
OFF: Press this button to turn the system off. Fresh air
will continue
to flow through the vehicle, and the
system will try to maintain the previously set
temperature. The outside temperature will show in the
display when the system is off.
DE-ICE (Option): Pressing this button helps to
remove ice or frost from the windshield. See “Heated
Windshield” later in this section.
3-3

Downloaded from www.Manualslib.com manuals search engine DEFOG: Press this button to divide the air between the
windshield and the heater outlets. This is useful when
fog appears
on the windshield or side glass due to
sudden rain or snowy conditions. This feature is not
available with the heated windshield option.
AUTO/ECON: Press this button to switch between
AUTO and ECON. The ECON setting attempts to
keep air at a selected temperature, however,
it does
not remove humidity from the air. Use this setting in
cold or cool weather to save fuel. The AUTO setting is
used when it’s warm outside and you need to cool the
air in order to maintain a selected temperature and
blower speed.
8 FAN SPEEDS: Press the button with the fan
symbol until AUTO is displayed on the screen. At this
setting, the fan speed is automatically controlled.
If it is
cold outside, the blower may not run in
the maximum
high fan speed right away.
The system checks the temperature
of the
engine coolant to assure it is warm
enough to provide heat. When the engine coolant is
warm, the controller allows the fan to gradually increase
to a higher speed. This prevents cold air from blowing
into the passenger compartment.
If you want the blower
fan at a high speed, press the up arrow button until you
see
HI on the display. If you want the fan speed to be
automatic, but you like the fan speed to be higher than
the AUTO setting, press the fan symbol button until
HI
AUTO is shown on the display. If you want the blower
fan at a low speed, press the down arrow button until
LO is shown on the display. If you want the fan speed to
run lower than the AUTO setting, press the button until AUTO
LO is shown on the display.
DEFROST Press this button to quickly remove
fog or frost from the windshield. This setting sends most
of
the airflow to the windshield with only a small
amount to the floor outlets.

Downloaded from www.Manualslib.com manuals search engine To avoid blowing cold air in cold weather, the system will
delay
turning on the fan until warm air is available. The
length
of delay depends on the outside air temperature,
engine coolant temperature or the time since the engine
was last started. As the coolant warms up, the blower fan
speed will gradually increase and air will flow from the
heater outlets, with some airflow to the windshield to
prevent fogging under most normal conditions.
If you leave your vehicle, the system will remember the
control setting the next time you start your engine,
except for recirculation and defrost. Each ignition cycle
cancels recirculation, whereas, DEmROST will change
to
AUTO when the ignition is shut off and then turned
back on.
You may manually adjust the air delivery mode or fan
speed.
/.I A/C: This setting directs airflow through the
A@
middle instrument panel outlets.
A@
BI-LEVEL: This setting directs air into your
vehicle in two ways. Cool air is directed to the upper portion
of your body through the middle instrument
panel outlets while warmed air is directed to the floor.
‘fl HEATER/DEFROST: This setting directs air to
the floor outlets and toward the windshield.
w.
0
vH HEATER: This setting directs warmed air
through the floor outlets. Some warm air is diverted to
the windshield to minimize fogging.
DEFROST Press this button to quickly remove
fog or frost from the windshield. This setting sends most
of the airflow to the windshield with only a small
amount to the floor outlets.
@ DE-ICE (Option): Pressing this button helps to
remove ice or frost from the windshield. See “Heated
Windshield” later in this section.
DEFOG: Press this button to divide the air between the
windshield and the heater outlets. This is useful when
fog appears on the windshield or side glass due to
sudden rain or snowy conditions. This feature is not
available with the heated windshield option.

Downloaded from www.Manualslib.com manuals search engine sf FAN SPEEDS: Press the button with the fan
symbol until AUTO is displayed on the screen. At this
setting, the fan speed is automatically controlled. If
it is
cold outside, the blower may not run in the maximum
high fan speed right away.
The system checks the
temperature of the engine coolant to assure it is warm
enough
to provide heat. When the engine coolant is
warm, the controller allows the fan to gradually increase
to a higher speed. This prevents cold air from blowing
into the passenger compartment.
If you want the blower
fan at a high speed, press the up arrow button until you
see
HIGH on the display. If you want the fan speed to be
automatic, but you like the
fm speed to be higher than
the AUTO setting, press the fan symbol button until
HIGH AUTO is shown on the display. If you want the
blower fan at a low speed, press the down arrow button
until
LOW is shown on the display. If you want the fan
speed to run lower than the AUTO setting, press the
button until
LOW AUTO is shown on the display.
OFF: Press this button to turn the system off. Fresh
air will continue
to flow through the vehicle, and the
system will try to maintain the previously set
temperature. The outside temperature will show
on
the display when the system is OFF.
AC: Press this button to turn the air conditioning on and
off. The system will cool and dehumidify the air inside
the vehicle. In the AUTO mode, the display will show
that AC is active, but the air conditioning compressor
only operates when the system determines
it is needed.
RECIRCULATION: Press this button to limit the
amount
of fresh air entering your vehicle. This is helpful
when you are trying to cool the air quickly or limit odors
entering your vehicle. In the AUTO mode, the system
will use recirculation as necessary
to cool the air.
Pressing the recirculation button will change the
operation to
a manual mode and the air will recirculate
non-stop. Press this button again to turn
off the
recirculation feature.
If you notice the windows fogging, press the
recirculation button to exit the recirculation mode.
DUAL TEMPERATURE CONTROL: With
this feature, the right front passenger can control the
temperature of heated air for his/her own zone. The
passenger can select
a four degree warmer or cooler
temperature from the driver's setting.
To turn the system
on, press the PASS/TEMP button. Press the up arrow
to increase the temperature and press the down arrow
to
decrease the climate setting. Pressing the OFF button
will turn
off the dual-zone Function.

Downloaded from www.Manualslib.com manuals search engine Engine Overheating
You will find an ENGINE COOLANT HOT-IDLE
ENGINE message or a
STOP ENGINE ENGINE
OVERHEATED message
on the DIC. There is also an
engine temperature warning light on the instrument
panel. See “Engine Temperature Warning Light”
in the
Index.
Overhe 1 Engine Ootection Operating
Mode
Should a low coolant condition exist and the message
STOP ENGINE ENGINE OVERHEATED is displayed,
an overheat protection mode which alternates firing
groups
of four cylinders helps prevent engine damage.
This operating mode allows your 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 mode 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.
5-15

Downloaded from www.Manualslib.com manuals search engine If Steam Is Coming From Your Engine
Steam from an overheated engine can burn you
badly, even if you just open the hood. Stay away
from the engine if you see or hear steam coming
from it. Just turn it off and get everyone away
from the vehicle until it cools down. Wait until
there is no sign of steam or coolant before
opening the hood.
If you keep driving when your engine is
overheated, the liquids in it can catch fire.
You
or others could be badly burned. Stop your
engine if it overheats, and get out of the vehicle
until the engine
is cool.
1 NOTICE:
~~~
If your engine catches fire because you keep
driving with no coolant, your vehicle can be
badly damaged. The costly repairs would not be
covered by your warranty. See “Overheated
Engine Protection Operating Mode” in the Index.
5-16

Downloaded from www.Manualslib.com manuals search engine When you decide it’s safe to lift the hood, here’s what
you’ll see:
A. Coolant Surge Tank with Pressure Cap
B. Electric Engine Fans
An electric fan under the hood can start up even
when the engine
is not running and can injure
you. Keep hands, clothing and tools away from
any underhood electric fan.
~~
If the coolant inside the coolant surge tank is boiling,
don’t do anything else until it cools down.
5-18 -

Downloaded from www.Manualslib.com manuals search engine The coolant level should be indicated by a CHECK
COOLANT LEVEL message on the Driver Information
Center. If
it isn’t, you may have a leak in the radiator
hoses, heater hoses, radiator, water
pump or somewhere
else
in the cooling system,
A CAUTION:
Heater and radiator hoses,
parts, can be very hot. Don’t touch them.
If you
do, you can be burned.
Don’t run the engine if there is
a leak. If you run
the engine,
it could lose all coolant. That could
cause an engine fire, and you could be burned.
Get
any leak fixed before you drive the vehicle.
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