coolant level CADILLAC ELDORADO 1994 10.G Owners Manual

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 r- I
r
P
r
i
If the coolant inside the coolant. surge tank is boiling, don’t do anything
else until it cools
down.
I
The coolant level should be visible inside the surge tank. If it isn’t and the
“ENGINE
COOLANT LOW” message appears on the Driver
Information Center, you may have a coolant leak somewhere in the
cooling system.

Downloaded from www.Manualslib.com manuals search engine I NOTICE:
Engine damage from running your engine without coolant isn’t \
covered
by your warranty. See “Overheated Engine Protection
Operating Mode” in the Index.
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.
How to Add‘Coolant to the Coolant Surge Tank
If you haven’t found a problem yet, but the coolant level isn’tvisible
inside the surge tank add a
50/50 mixture of clean water (preferably
distilled) and a proper antifreeze at the coolant surge tank, but be sure
the cooling system, including the coolant surge tank pressure cap, is
cool
before you do it. (See “Engine Coolant’’ in the Index for more
information about the proper coolant mix.)
If it isn’t, you may have a leak in the radiator hose, heater hoses, radiator,
water pump or somewhere else in the cooling system.
c
NOTICE:
I
In cold weather, water can freeze and crack the engine, radiat\
or, -
heater core and other parts. So use the recommended coolant. L
_I
224

Downloaded from www.Manualslib.com manuals search engine p““
4. With the coolant
surge tank
pressure cap
off,
start the engine
and let it run until
you can feel the
upper radiator
hose getting hot.
Watch out for
the
engine fans.
By this time, the coolant
level inside the coolant surge tank may be lower.
If the level is lower, add more of the proper mix to the coolant surge tank
until the level reaches about 2 1/2 inches (60 mm) below the base of the
filler neck.
r
5. Then replace the
pressure cap. Be
sure the arrows
on
the pressure cap
line up like this. 7
Start the engine and allow it to warm up. If the “ENGINE COOLANT
LOW” message does not appear on the Driver Information Center,
coolant is at
the proper fill level. If an “ENGINE COOLANT LOW”
message does appear, repeat steps 1 to 3 or see your dealer.
228

Downloaded from www.Manualslib.com manuals search engine NOTICE:
If you use an improper coolant mix, your engine could overhea,t
and be badly damaged. The repair cost wouldn’t be covered b\
y
your warranty. Too much water in the mix can freeze and crack
the engine, radiator, heater core and other parts.
Adding Coolant
I
Your cooling system when hot is under a lot of pressure. If the “ENGINE
COOLANT
LOW” message should appear on the Driver Information
Center,
you will need to add coolant.
If the “ENGINE COOLANT LOW” message does not appear, the
coolant is at the proper fill level.
Ll
264

Downloaded from www.Manualslib.com manuals search engine r
f-
r
r
To Add Coolant
If you need more coolant, add the proper mix at the coolant surce tank.
.~ . .
To Check or Add Coolant
When the engine is cold, remove the pressure cap from the surge tank,
use a flashlight as necessary to see into the tank. The coolant level should
be visible inside the tank about
2 112 inches (60 mm) below the base of
the fill neck.
If you need more coolant, add the proper mix.
SURGE TANK PRESSURE CAP
NOTICE:
Your surge tank cap is a 15 psi (1.05 kPa) pressure-type cap ana
must be tightly installed to prevent coolant loss and possible
engine damage
&om overheating. Be sure the arrows on the cap
line up with the overflow tube
on the surge tank filler neck.
I k
When you replace your surge tank pressure cap, an GM@ cap is
recommended.
b. I
265

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

Downloaded from www.Manualslib.com manuals search engine The Northstar engine is designed to require less maintenance than many
other DOHC
V-8 engines. Engine systems are designed to remind the
driver when service is required.
An oil life index indicator monitors
ongoing operating conditions and reminds the driver when an oil change
is needed.
A low coolant warning message keeps track.of the level of this
vital fluid. Direct acting hydraulic tappets provide maintenance free zero
lash operation
of the 32 valves from idle to the 6500 rpm redline. The
camshafts are driven by
a two stage roller chain assembly which is
designed
to provide quiet maintenance free Operation. Platinum tipped
,spark plugs increase the replacement interval
to 100,000 miles.
The four valve per cylinder design provides more efficient engine
breathing which results in higher power than comparable
two valve
engines. The central location
of each spark plug ensures a fast and
complete burning of the fuel/air mixture. The induction system uses
smooth thermoplastic tubes to channel air into the cylinders. The
smoothness
of the tubes is equivalent to the elaborate port polishing
methods used for race car engines. Careful design using the shape and
length
of the tubes boosts horsepower by using sonic pressure waves
created by the motion
of the inlet valves to increase the amount of air
entering ,each cylinder.
The Northstar engine is also designed
to be very durable. The aluminum
block has cast-in-place iron cylinder liners for greater wear resistance.
High strength connecting rods support the free floating piston pins in
bronze bushings for superior high speed performance. The fillets
of the
nodular iron crankshaft undergo
a high pressure compression rolling
operation to improve their resistance to fatigue.
Quiet operation is enhanced by the use of special materials and designs.
The front cover of the engine is stamped from laminated steel which
damps out noise. Special cam cover gasket seals isolate valve train
operation.The fuel injectors are placed inside the induction system
housing
to eliminate- the clicking noise which is common to other fuel
injected engines.
The Northstar engine is designed to provide years of efficient. reliable.
satisfying operation.
7
320