engine overheat CADILLAC ELDORADO 1994 10.G User Guide

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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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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.
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When you replace your surge tank pressure cap, an GM@ cap is
recommended.
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The.head1ightwiring is protected by,a circuit breaker in the light switch.
An electrical overload will cause the lights to .go on and off, or in.. some
cases: to -remain-
off. If this happens, have your headlight wiring checked
rightaway.
.Wiradshiekl Wipem
The windshield wiper motor is protected by a circuit breaker and a fuse.
If the..motor overheats due to heavy snow, .etc.,-.the wiper will stop imtil
the
motor mls. If the overload iscaused by some electrical problem and
not snow, etc., be sure to get it fixed.
Power Widbws andother Power Options
F I ! Circuit breakers in .the fuse panel protect the power windows and other power
accessories. .whensthe current load islm heavy, the circuit breaker
qens .and
closes, protecting the circuit until the, problem is. fixed or goes. away.
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DESCRIPTION BULB NO.
Ash ?i.ay.Illuninatio.n .................................... .1445
Backup Lights ......................................... 2057
Cornering Light ................................... 1156 ,DC7
CowtesyReading Light
.................................... 168
Glove. Compartment Light ................................ 194
Headlights'Composite -Inner High Beam
................................ 9005 HB3
.-Outer Low Beam
................................... ,9006 HB4
Illumination Entry~Lock~Lamp
............................. .192
Instrument. Panel Illuniinatian ............................ ' 194
. 1.nstrumeIlit Panel'T'llt&s ................................ 194
LicenseP1ate.Ligh.t ....................................... 194
Park and Tim Signal ................................ 2357.NA
. Fog Light ............................................... 886
-Errport.Bulb ............................................ H4
317
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Downloaded from www.Manualslib.com manuals search engine Mountain Driving .................................. 194
MTBE In Gasoline
................................. 242
Mud.
If You’re Stuck In ............................. 239
N
“N” (Neutral) Gear Position .......................... 90
Net. Convenience
................................... 78
New Vehicle “Break-Iny’ .............................. 78
Night. Driving At ................................... 185
Nightvision
....................................... 186
Notices About Damage
................................ 2
Occupant Restraint
.................................. 13
Octane Required For Your Car
....................... 242
Odometer
......................................... 131
Odometer And Speedometer
......................... 130
Odometer. Trip
.................................... 131
Off (Ignition Key Position) ............................ 83
Off Road Recovery
................................. 182
Oil. Engine
........................................ 252
Oil. When
To Change Your Engine .................... 257
Oil Thickness (Viscosity)
............................ 254
Operating Record
....................... See Maint . Book
Operation
in Foreign Countries., ...................... 244
Outside Air
....................................... 150
Outside Mirrors
................................ 122. 123
Overdrive, Automatic
................................ 90
Overheated Engine Protection Operating Mode
......... 220
Overheated Engine, Warning Light For
................ 134
Owner Checks
& Services ................. See Maint . Book
Oil Life
Indicator
................................... 148
OilQuality
........................................ 256
“P” (Park) Position
.................................. 88
Paint Spotting. Chemical ............................ 307
Park. Shifting Into
................................... 94
Park. Shifting Out Of
................................ 97
Parking Over Things That Bum ........................ 98
Passing Another Vehicle ............................. 182
Pedal Travel. Brake
................................. 273
ParkPosition
....................................... 88
ParkingBrake ...................................... 92
PASS Key
TM (Personalized Automotive Security Sys) ...... 82
10
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L- 1
K.4
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rerceptlon Time, In Braking .............
Possible Damage to Your Cadillac, Notices About ......... 2
Possible Injury To People, Cautions About ................ 1
Power Polishing and Waxing
............................... 304
Antenna, Cleaning
The ........................... 168
DoorL .......................................... 68
Seat Controls ..................................... 6
Steering ........................................ 180
Steering Fluid ................................... 266
Windows
....................................... 101
Pregnancy, Use Of Safety Belts During ................. 38
Problems On The Road ............................. 208
Product Sew. Publications ............ See Owner Assistance
Proper Safety Belt Usage, For Adults
............. .. ..... -20
Pull Down System, Tnxnk 78
.. _. . -c -._ . . .... p-; ..............................
>.e:* ,..- P.. r. ........ r- ... :.+gy<;~c;;g4: ;:$~&.<.& ~:,:.*,:*t+.??&p"F- cs&<< 1" <--.i_.-, .- . .- ZLC32"s& '!>&Eke:
"R" (Reverse) Gear Position ... ............. 89
Racing, Shifting When Your Engine Is .................. 90
Radiator Overheating ............................... 220
Radio, Tho-Way, Adding A ...................... 159,311
Rain, Driving In .................................... 187
Reading Lights ..................................... 119
Rear Window Defogger ............................. 154
Radio Systems ...................................... 157
Reaction Time, In Braking ........................... 176
Rear Ashtray ...................................... 127
Reclining Seat ....................................... 7
Recommended Fluids & Lubricants ........ See Maint. Book
Recovery,
Off Road .......................... ..... 182
Recreational Vehicle, Towing A
................. '. ...... 201
Remote Fuel Door ................................. 247
Remote Trunk Release ............................... 77
Replacement Fasteners .............................. 241
Replacing Brake System Parts ........................ 274
Replacing Safety Belts ............................... 64
Replacing Tires .................................... 293
Redacing Wheels
.................................. 296
.?.
Remote Keyless Entry ................................ 71
... i, i;: ,. -
.. , .. ,
RGortini Safety Defects
to Canadian Gov't.
................ See Owner Assistance
to General Motors
................ See Owner Assistance
to U.S. Gov't ..................... See Owner Assistance
Restarting Your
Car When It's Moving ................. 90
Restraint, Infant .................................... 47