1994 CADILLAC ELDORADO engine overheat

Downloaded from www.Manualslib.com manuals search engine STOP ENGINE ENGINE 0-TED - 42
This message will appear when your engine has overheated. Stop and
turn your engine off immediately to avoid severe engine damage. See
“Engine Overheating”
in the Index.
SERVICE VEHICLE SOON - 03
This message will appear if there is a problem with your Emission
Control System. If the “SERVICE ENGINE SOON” light on the
instrument panel and this message appears and then turns
off, it is an
indication that a temporary problem has cleared itself. Have your vehicle
checked at your earliest convenience.
STOP ENGINE LOW OIL PRESSURE - 35
If this message appears while the engine is running, stop the engine and
do not operate it until the cause of low oil pressure is corrected. Severe
damage to the engine can result.
SERVICE AIR BAG SYSTEM - 83
If this message appears, there is a problem with your Supplemental
Inflatable Restraint (Air Bag) system. Let only a qualified technician
work
on your vehicle. See your Cadillac dealer for service at once.
THEFT SYSTEM PROBLEM/CAR MAY NOT RESTART - 34
This message means there is a problem in the Personalized Automotive
Security System (PASS Key@ 11). PASS Key@ I1
will prevent the vehicle
from restarting
if it is turned off, so you should take the vehicle to a
proper service center before turning the engine
off. Never leave an
unattended vehicle with the engine running. Once you are where you can
get service, turn the engine off and then try to restart it. If
the vehicle
does not restart, the PASS Key@ I1 system will need servicing.
TRACTION ACTIVE - 91
If your vehicle is equipped with Traction Control, this message will be
displayed if Traction Control is being used to reduce wheel slippage.
TRACTION DISABLED - 88
If your vehicle is equipped with Traction Control, this message will be
displayed
if a problem is noted in the Traction Control System. Have your
vehicle serviced as soon as possible.
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Downloaded from www.Manualslib.com manuals search engine Driving On Grades
Reduce speed and shift to a lower gear before you start down a long or
steep downgrade.
If you don’t shift down, you might have to use your
brakes
so much that they would get hot and no longer work well.
On a long uphill grade, shift down and reduce your speed to around
45 mph (70 km/h) or less to reduce the possibility of engine and transaxle
overheating.
If your trailer weighs more than 1,000 pounds (450 Kg) and you have an
automatic transaxle with Overdrive, you may want
to drive in “3” instead
of Overdrive
Parking on Hills
You really should not park your vehicle, with a trailer attached, \
on a hill.
If something goes wrong, your rig could start to move. People can be
injured, and both your vehicle and the trailer can be damaged.\

But
if you ever have to park your rig on a hill, here’s how to do it:
Apply your regular brakes, but do not shift into “P’, (Park).
Have someone place chocks-under the- trailer wheels.
When. the wheel chocks are in place, release the regular brakes until
the chocks absorb the load.
Reapply the regular brakes. THen shift into “P7, (Park) firmly and
apply your parking brake.
Release the regular brakes.
When You Are Ready to Leave Afler Parking on a Hill
1. Apply your regular brakes and hold the pedal down while you:
Start your engine;
Shift into a gear; and
0 Be sure the parking brake has released.
2. Let up on the brake pedal.
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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
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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.
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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
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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
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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
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Check periodically to see that all hitch nuts and bolts are tight.
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Downloaded from www.Manualslib.com manuals search engine Overheated Engine Protection Operating Mode
Should a low coolant condition exist and the stop “STOP ENGINE
ENGINE OVERHEATING” message 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 befo\
re
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
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NOTICE:
If your engine catches fire because you keep drivingwith no
coolant, yourd.&le can be bad$ damaged. The costly repairs
would not be covered by yom’wamnty.. See ‘‘Overheated Engine
Protection Operating~Made” iri the- Index.
IfNo Steam Is Coming From Your Engine
If you get .the overheat .warningbut see or. hear no steam, the problem
may net
be too serious. Someiimes the engine can get a iittktoo..hot
when
you:
0 Climb a long hill on a hat day.
0 Stop after- high speed driving.
Idle for long periods in traffic.
Tow a trailer.
If you get the overheat warning with no sign af steam, try this .for a
minute
or so:
1. Turn off your air conditioner.
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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
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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.
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NOTICE:
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In cold weather, water can freeze and crack the engine, radiat\
or, -
heater core and other parts. So use the recommended coolant. L
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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.
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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.
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