1994 CADILLAC ELDORADO coolant temperature

Downloaded from www.Manualslib.com manuals search engine also on, you don’t have anti-lock brakes and there’s a problem with your
regular brakes. See “Brake System Warning Light” earlier in this part.
Engine Temperature Warning Light
(Canadian \Export Only)
This light tells you that
your engine has
overheated. You
should stop the car and
idle the engine as soon
as possible.
A warning
chime should also
sound if this light
comes on.
As a check,
the light should come
on
for a few seconds
when
you start your
engine.
HOT COOLANT CAN BURN YOU BADLY!
In “Problems on the Road,” this manual shows what to do. See “Engine
Overheating” in the Index.
Malfunction Indicator Lamp
SERVICE
ENGINE
SOON
SERVICE
ENGINE SOON
134

Downloaded from www.Manualslib.com manuals search engine CHECK COOLANT LEVEL - 04
This message will appear when there is a low level of engine coolant.
Have the cooling system serviced
by a Cadillac technician as soon as
possible.
CHECK FUEL GAGE - 39
This message will appear when your fuel supply is less than 4 gallam ad
your display is turned off.
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.
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 i\
n 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 i\
s over
126” C (259°F). 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. Seve\
re engine damage can result from an overheated engine. See “Engine Ove\
rheating’’
in the Index.
ENGINE HOT - A/C COMPRESSOR OF” - 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
L. -4
144

Downloaded from www.Manualslib.com manuals search engine n
r
Ir
r
b”
n I t-
compressor,.is ,automatically $Urned.o€L =tlaat.;hap.pgns, air
conditioned air is not delivered.
If the coolant temperature returns to
normal, you must select “AUTO”, “DEFOG” or Defrost to return to a
normal A/C compressor operation.
FUEL LEVEL VERY LOW - 11
This message serves as a warning that the fuel level in your tank is
critically low. It means you should stop for fuel immediately. I
CHECK WASHER FLUID - 25
This message shows that the washer fluid reservoir is nearly empty.
SERVICE A/C SYSTEM A/C COMPRESSOR OFT - 14 I
This message appears when the electronic sensors that control the A/C
and heating system are no longer working. You may notice a drop in
heating and
A/C efficiency when this message appears. Have your
Climate Control system serviced
if this message appears.
STARTING DISABLED DUE TO THEFT SYSTEM REMOVE
IGNITION KEY - 33
This message will a ear when the Personalized Automotive Security
System (PASS Key
gp 11) senses that an improper ignition key is being used
to try to start the vehicle. Check the ignition key for damage.
If it is
damaged, it may need to be replaced.
If you see no damage, clean the Ii
pellet contacts with a soft cloth or napkin. Remove the ignition key and
wait for the Driver Information Center to display “WAIT
3 MINUTES”.
The Instrument Panel Cluster
will then run a timer and change the
messages to “WAIT
2 MINUTES ”, “WMT 1 MINUTE”, and then
“START CAR”. When the “START
CAR” message is displayed, try again
to start the engine.
SERVICE NOW - REFER TO OWNERS MANUAL - 02
This message appears if you have a problem with the Powertrain Control
Module
(PCM). To correct this problem have your vehicle serviced at
your Cadillac dealership.
SERVICE RIDE CONTROL - 84
This message is displayed to indicate that the Suspension System is not
operating properly. To correct this problem have your vehicle serviced at
your Cadillac dealership at your earliest convenience.
145.

Downloaded from www.Manualslib.com manuals search engine n
ir
’r
I- t
r r
r L
r I 1
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 turnea on, in either the AUTO’br..
ECON setting and the fan setting
is not on “HI”, a small amount of ah ::.
will flow through the defroster duct while- the system is waiting for the
engine coolant to warm up enough to provide heat. This prevents your
breath from fogging your windshield. As the coolant warms up, the
blower fan speed will gradually increase and air will flow from the heater
outlets, with some air bleed to the windshield to prevent fogging under
most normal conditions.
..
Manually Recirculate Inside Air
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
Push this button to divide the air between the windshield and the heater
ducts.
This is useful when fog appears on the windshield or side glass due
to a sudden rain or snowy conditions.
Fan Speeds
Push the (symbol) button
until “AUTO” is displayed on the screen. At this
I 1 setting, the fan speed is
controlled automatically.
If it is cold outside, the blower may not run in the maximum high fan
speed right away. The system checksthe temperature
of the coolant to
assure it is warm enough to provide heat. When the coolant is warm, the
153

Downloaded from www.Manualslib.com manuals search engine r
F, 4. Stop and have someone pick up .and store the chocks.
Engine Cooling When Tru.ilering
r
I ? Your cooling system may temporarily overheat during severe operating
conditions such as;
Climbing grades steeper than 4% at ambient temperatures above
90” Fahrenheit (32O Celsius) with a loaded vehicle and trailer.
Stopping after high-speed driving.
I
r Idling for long periods in stop and go traffic. I
If ,“ENGINE HOT A/C COMPRESSOR OFF” message appears on. the
Driver Information Center, do.not be alarmed.
This is. a normal function
continue to drive’your vehicle.
the -Driver Information Center, pull
,off to the side of the road as, soon as
it is safe to do
so. When the vehicle is at a complete stop, shift the
transaxle selector to
P (Park) and allow the engine to idle.:Do not turn off
three minutes the system should cool sufficiently to allow A/C operation
to resume. At that time resume driving at a reduced speed. Return to
normal driving after
10 minutes if the “ENGINE COOLANT HOT
- designed. to reduce the load on the.engine and cooling system. You can
- If “ENGINE COOLANT HOT IDLE ENGINE” message.appears on
c
I the engine or increase engine speed.above a normalidle. Wit-hin two or
b- IDLE ENGINE” message is not displayed.
Maintenance When Trailer Towing
i L.
Your vehicle will need service more often when you’re pulling a trailer.
See the Maintenance Schedule for more on this. Things that are
(don’t overfill), engine oil,
axle lubricant, belts, cooling system, and brake
adjustment. Each
of these is covered in this manual, and the Index will
these sections before you start your trip.
i especially important in trailer operation are, automatic transaxle fluid
7 help you find them quickly. If you’re trailering, it’s a good idea to review
I
‘F
Check periodically to see that all hitch nuts and bolts are tight.
r 207

Downloaded from www.Manualslib.com manuals search engine 2. Turn on your heater to full hot at the highest fan speed and open the
window as necessary.
3. Dial temperature control to the highest heat setting and open the
window, as necessary.
If you no longer have the overheat warning, you can drive. Just to be safe,
drive slower for about ten minutes.
If the warning doesn't come back on,
you can drive normally.
If the warning continues, pull over, stop, and park your vehicle right\

away.
If there's still no sign of steam, you can idle the engine for two or three
minutes while you're parked, to see
if the warning stops. But then, if you
still have the warning, TURN
OFF THE ENGINE AND GET
EVERYONE
OUT OF THE VEHICLE until it cools down.
You may decide not to lift the hood but to get service help right away.
COOLING SYSTEM
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
222
c-
--a

Downloaded from www.Manualslib.com manuals search engine 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’% the Index.
r The proper coolant for your Cadillac will:
0 Give freezing protection down to -34°F (-37°C). - I .0 Give boiling protection up to 262°F (128O C).
0 Protect against rust and corrosion.
r
r
r
? I
Help keep the proper engine temperature.
0 Let the warning lights work as they should.
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 coofant change.
If you use this mixture, you don? need to add anything else.
i
I L
263

Downloaded from www.Manualslib.com manuals search engine 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
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.
266