1993 CADILLAC DEVILLE engine overheat

Downloaded from www.Manualslib.com manuals search engine ENGINE COOLANT
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” in the Index.
The proper coolant for your Cadillac will:
0 Give freezing protection down to -34°F (-37°C) .
0 Give boiling protection up to 262°F (128” C) .
0 Protect against rust and corrosion.
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 coolant change.
If you use these, you don’t need to add anything else.
A CAUTION:
Adding only plain water to your cooling system can be
dangerous. Plain water,
or some other liquid like alcohol, can
boil before the proper coolant mix
will. Your vehicle’s coolant
warning system is set for the proper coolant mix. With plain
water or the wrong mix, your engine could get too hot but you
wouldn’t get the overheat warning. Your engine could catch fire
and
you or others could be burned. Use a 50/50 mix of clean
Waf--- and
a proper anti” e. .-
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Downloaded from www.Manualslib.com manuals search engine Add coolant mix at the recovery tank, but be careful not to spill it.
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A CAUTION:
You can be burned if you spill coolant on hot engine parts.
Coolant contains ethylene glycol, and it
will burn if the engine
parts are hot enougl- spill coolant on
a hot e-yine.
RADUTOR PRESSURE CAP
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must be tightly Installed to prevent coolant loss and possible
engine
damage from overheating. Be sure the arrows on the c
line up with the overflow tube on the radiator filler neck .L
When you replace your radiator pressure cap, an ACS cap is
recommended.
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.
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Downloaded from www.Manualslib.com manuals search engine CAUTION:
Poorly maintained and improperly used tires are dangerous.
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Overloading your tires can cause overheating as a result of
too
much friction. You could have an air-out and a serious
accident. See “Loading Your Vehicle” in the Index.
Underinflated tires pose the
same danger as overloaded
tires. The resulting accident could cause serious iqjury.
Check all tires frequently to maintain the recommended
pressure. Tire pressure should be checked when your tires
are cold.
Overinflated tires are more likely to be cut, punctured, or
broken by a sudden impach such as whenyou hit a pothole.
Keep
tires at the recommended pressure.
Worn, old tires
can cause accidents. If your tread is badly
worn, or if your tires have been damaged, replace them.
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Inflation - Tire Pressure
The Tire-Loading Information label which is on the driver’s door shows
the correct inflation pressures for your tires, when they’re
cold. “Cold”
means your vehicle has been sitting for at least three hours or driven no
more than a mile.

Downloaded from www.Manualslib.com manuals search engine Headlights
The headlight wiring 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
right away.
Windshield Wipers
r
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 until
the motor cools. If the overload is caused by some electrical problem and
not snow, etc.,
be sure to get it fixed.
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Power Windows and Other Power Options
Circuit breakers in the fuse panel protect the power windows and other
power accessories. When the current load is too heavy, the circuit breaker
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opens and closes, protecting the circuit until the problem is fixed or goes
away.
BULB CHART
DESCRIPTION BULB NO.
Ash Tray Illumination .................................. 1445
Backup Lights.
........................................ 3057
Center High Mount Stop Light .......................... 1141
CorneringLight ........................................ 881
Courtesy Light
-Doors (White)
....................................... 12864
-Rear Courtesy/Reading
.............................. .562/561
-Doors Warning (Red)
................................. 12864
Courtesy/Maplight
-Without Astroroof
..................................... 906
-With Astroroof
........................................ 56'1
Cruise Control Illumination .............................. 194
Cruise
Control Indicator ................................. 141
ECC Head Illumination .................................. 37
Fuel Data Center Illumination ............................ 194
Glove Compartment Light
............................... 194
Headlights Composite
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Disposal. Used Oil ................................. 273
Doing Your Own Service Work ....................... 260
Door Locks ........................................ 60
Downhill. Parking .................................. 209
Downshifting ....................................... 81
Driver’s Side S.I.R. (“Air Bag”) ........................ 28
Driving
And the Road. Your
..............................
AtNight ........................................
Defensive ......................................
Hill and Mountain ...............................
In A Foreign Country ............................
InCities ........................................
In Fog, Mist And Haze ...........................
InTheRain .....................................
InWinter .......................................
On A Long Trip .................................
On Snow Or Ice .................................
On The Freeway .................................
OnCurves ......................................
Winter .........................................
Drunken Driving ...................................
Dual Braking System ................................
166
193
175
206
263
201
199
196
212
204
213 203 187
212
176
121
“E. .. Flashing. On Fuel Data Center ................... 130
Electric Outside Mirror Control ....................... 111
Electrical Equipment. Adding ........................ 327
Electronic Climate Control .......................... 139
Electronic Level Control ............................ 136
Electronic Solar Sensor ............................. 143
Emergencies. Braking in ............................. 186
Emergencies. Steering In ............................ 188
Emergency Starting. Discharged Battery ............... 227
Emergency Towing ................................. 232
Engine
Block Heater (Option)
............................ 77
Coolant ........................................ 278
Coolant Temp Light .............................. 125
Oil ............................................ 268
Oil Additives .................................... 272
Oil Light ....................................... 127
Oil. When To Change ............................ 272
Overheating .................................... 236
StartingYour .................................... 76
Warning Light About Need For Service ............. 120

Downloaded from www.Manualslib.com manuals search engine .
Maplights ......................................... 107
Markings. Pavement ................................ 174
Master Cylinder. Brake .............................. 284
Matching Transmitters ............................... 66
Methanol In Gasoline ............................... 261
Mileage Indicator .................................. 119
Mirrors. Front Seat Vanity ........................... 111
Mirrors. Inside Daymight ........................... 109
Mirrors. Outside ................................... 111
Mist. Driving In .................................... 199
Mobile Telephone. Adding A ...................... 144. 327
Monitors. Lamp .................................... 108
Mountain Driving .................................. 206
MTBE In Gasoline ................................. 262
Mud. If You’re Stuck In ............................. 257
N
“N” (Neutral) Gear Position .......................... 80
New Vehicle “Break-In” .............................. 74
Night. Driving At ................................... 193
Night Vision ....................................... 194
Notices About Damage ................................ 2
0
Occupant Restraint .................................. 10
Octane Required For Your Car ....................... 261
Odometer And Speedometer ......................... 118
Odometer. Trip .................................... 119
Off (Ignition Key Position) ............................ 74
Off Road Recovery ................................. 189
Oil. Engine ........................................ 268
Oil. When To Change Your Engine .................... 272
Oil Life Indicator ................................... 133
Oil Light .......................................... 127
OilQuality ........................................ 272
Oil Thickness (Viscosity) ............................ 270
Operation In Foreign Countries ...................... 263
Outside Air ....................................... 137
Outside Mirrors .................................... 111
Overdrive. Automatic ................................ 80
Overheating. Engine ................................ 236
Owner Checks & Services ............ See Maint . Book. p.26
Operating Record .................. See Maint . Book. p.44
Overheated Engine Coolant. Warning Light For ......... 125
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P
“P” (Park) Position .................................. 78
Paint Spotting. Chemical ............................ 324
Park. Shifting Into
................................... 84
ParkingBrake
...................................... 82
Parking. Downhill
.................................. 209
ParkPosition
....................................... 78
Parking On Hills
................................... 208
Parking Over Things That Burn
........................ 87
Parking Uphill ..................................... 210
PASS-Key
I1 TM ...................................... 72
Passing Another Vehicle
............................. 190
Pavement Markings
................................. 174
Pedal Travel. Brake
................................. 186
Polishing and Waxing
............................... 321
Possible Damage to Your Car. Notices About
............. 2
Possible Injury To People. Cautions About ................ 1
Antenna. Cleaning The ........................... 164
Reclining Front Seatbacks (Option)
................... 7
Perception
Time. In Braking
......................... 180
Power Door Locks
...................................... 60
Seat Controls
..................................... 6
Steering
........................................ 187
Steering Fluid
................................... 281
Windows
........................................ 90
Problems On The Road ............................. 224
Product Service Publications
.......... See Owner Assistance
Proper Safety Belt Usage. For Adults
................... 18
Pull Down System. Trunk ............................. 69
Pregnancy.
Use Of Safety Belts During
................. 33
R
“R” (Reverse) Gear Position .......................... 79
Racing. Shifting When Your Engine
Is .................. 80
Radiator Overheating
............................... 236
Radiator Pressure Cap
.............................. 280
Radio. Two.Way. Adding A
....................... 144. 327
Radio Systems
..................................... 143
Rain. Driving
In .................................... 196
Reaction Time. In Braking
........................... 180
RearBrakes
....................................... 186
RearDoorSecurityLock
............................. 63
Rear Storage Box
................................... 68
Rear Seat Passengers
................................ 36
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Snow. If You’re Stuck In Deep ........................ 217
Snow Or Ice. Driving On ............................ 213
Snowstorm. If You’re Caught In A Bad ................ 215
Solvent-vpe Cleaner On Fabric ...................... 317
Sound Equipment. Adding ........................ 144. 327
Sound System. How to Operate Your .................. .I I
Spare Tire. Compact ................................
Speaker Covers. Delco Bose .........................
Specifications ......................................
Speed Sensitive Steering .............................
Speed Sensitive Suspension ..........................
Speedometer And Odometer .........................
Stains. Removing ...................................
143
256
319
336 135
135
118
316
Start (Ignition K:y Position) .......................... 74
Starting Your Engine ................................ 75
Starting Your Car If The Battery Is “Dead” ............. 226
Steam From Hot (Overheated) Engine ................. 236
Steep Hill. Parking On A ............................ 208
Steering In Emergencies ............................. 188
Steering .......................................... 187
Steering Tips ...................................... 187
Steering Wheel, Tilt ................................. 91
Stereo Sound Systems ............................... 143
Storage Armrest ................................... 117
Storing Your Vehicle ................................ 287
Steering Without Power Assist ........................ 187
Stop Engine Temp Light ............................. 125
Stuck. If Your Ignition Key Is .......................... 75
Stuck. If You’re - In Sand. Mud. Ice Or Snow ........... 257
Subscribing to Cadillac Product Pub .... See Owner Assistance
Sunglasses. Wearing At Night
........................ 195
Supplemental Inflatable Restraint (S.I.R.) ............... 28
Symbols Used On Your Vehicle ......................... 3
Table Of Contents ......... See Front of Owner Info . Manual
Taillight Bulb Replacement
.......................... 294
Tamper-Resistance Of Odometer ..................... 120
Tape Player Care ................................... 163
Temperature, Stop Engine. Warning Light .............. 125
Thermostat ........................................ 280
Theft .............................................. 70
Theft Deterrent System .............................. 71
Third Gear. When To Use ............................ 81
Tightness Adjustment. Shoulder Belt ................... 21
Tilt Steering Wheel .................................. 91
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