coolant temperature CADILLAC SEVILLE 1994 4.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine These symbols are used on warning and indicator lights:
1-1
I I BRAKE I I
RADIATOR
COOLANT
I
ENGINE COOLANT TEMPERATURE I CHARGING
EB
H ANTILOCK BRAKE I I
ENGINE OIL TEMPERATURE
Here are some other symbols you may see:
u
RADIO SELECTOR I
I RADIO VOLUME AIR CONDITIONING I FUSE
P
I3 LIGHTER
RELEASE I
I HORN I U
SPEAKER

Downloaded from www.Manualslib.com manuals search engine Engine Temperature Warning Light (Canadian !Export
Only)
This light tells you that
your engine has
overheated. You
should stop the car and
turn the engine off
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
i t W1 3VICE .,
ENGINE
SOON
SERVICE
ENGINE SOON
A computer monitors operation of your fuel, ignition and emission
control systems. This light should come on when the ignition is
on, but
136

Downloaded from www.Manualslib.com manuals search engine ENGINE COOLANT HOT - 44
This message will appear when your engine coolant temperature is over
126 C (248 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. Severe engine
damage can result from an overheated engine. See “Engine Overheating”
in the Index.
ENGINE HOT - A/C COMPRESSOR OFF - 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
compressor is automatically turned
off. When that happens, 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.
SERVICE A/C SYSTEM A/C COMPRESSOR OFF - 14
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 appear when the Personalized Automotive Security
System
(PASS Key II@) 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
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”, “WAIT 1 MINUTE”, and then
“START CAR”. When the “START CAR” message is displayed, try again
to start the engine.

Downloaded from www.Manualslib.com manuals search engine Electronic Climate Control Features
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 turned on, in either the AUTO or
ECON setting and the fan setting is not on “HI”, a small amount
of air
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,
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.
156

Downloaded from www.Manualslib.com manuals search engine Fan Speeds
Push the (symbol)
button until “AUTO” is
displayed on the
screen. At this 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 checks the temperature of the coolant to
assure it is warm enough to provide heat. When the coolant is warm, the
controller will allow the fan to ramp up to a higher speed. This prevents
cold air from blowing into the passenger compartment.
If you want the blower fan to run only at a fixed high speed, push the
(upper) button until you see “HI” on the display.
If you want the fan speed to be automatic, but you like the fan speed to
be higher than the AUTO setting, just push the buttons until “HI/AUTO”
is shown on the display.
If you want the blower to run only at a fixed low speed, push the (low)
button until
“LO” is shown on the display.
If you want the fan speed to run lower than the “AUTO” setting, push the
button until “AUTO
LO” is shown on the display.
157

Downloaded from www.Manualslib.com manuals search engine Engine Cooling When Trailering
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.
I_ Stopping after high-speed driving.
0 Idling for long periods in stop and go traffic.
If “ENGINE HOT A/C COMPRESSOR
OFF” message appears on the
Driver Information Center, do not be alarmed. This is a normal function
designed to reduce the load
on the engine and cooling system. You can
continue to drive your vehicle.
If “ENGINE COOLANT HOT IDLE ENGINE’’ message appears on
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
the engine or increase engine speed above a normal idle. Within
two or
three minutes the system should cool sufficiently to allow A/C operation
normal driving after
10 minutes if the “ENGINE COOLANT HOT
IDLE ENGINE” message is not displayed.
-
-
transaxle selector to P (Park) and allow the engine to idle. Do not turn off
__ to resume. At that time resume driving at a reduced speed. Return to
__
Maintenance When Trailer Towing
Your vehicle will need service more often when you’re pulling a trailer.
especially important
in trailer operation are automatic transaxle fluid
(don’t overfill), engine oil, belts, cooling system, and brake wear Each of
.- these is covered in this manual, and the Index will help you find them
quickly.
If you’re trailering, it’s a good idea to review these sections
before
you start your trip.
~ See the Maintenance Schedule for more on this. Things that are
- Check periodically to see that all hitch nuts and bolts are tight.
209

Downloaded from www.Manualslib.com manuals search engine -.
NOTICE:
If your engine catches fire because you keep driving with no
coolant, your vehicle can be badly damaged. The costly repairs \
would not be covered by
your warranty.
IfNo Steam Is Coming From Your Engine
If you get the overheat warning but see or hear no steam, the problem
may not be too serious. Sometimes the engine can get a little too hot
when you:
Climb a long hill on a hot day.
Stop after high speed driving.
Idle for long periods in traffic.
Tow a trailer.
If you get the overheat warning
with no sign of steam, try this for a
minute or
so:
1. Turn off your air conditioner.
2. Turn on your heater to full hot at the highest fan speed and open the
3. Dial temperature control to the highest heat setting and open the
window as necessary.
window, as necessary.
4. Try to keep your engine under load (in a drive gear where the engine
runs slower).
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
223

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:
Give freezing protection down to -34OF (-37 C).
0 Give boiling protection up to 262OF (128OC).
0 Protect against rust and corrosion.
Help keep the proper engine temperature.
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 this mixture, you don’t need to add anything else.
265

Downloaded from www.Manualslib.com manuals search engine SURGE TANK PRESSURE CAP
1 NOTICE:
Your surge tank cap is a 15 psi (105 kPa) pressure-type cap and
must be tightly installed to prevent coolant loss and possible
engine damage from overheating. Be sure the arrows on the cap \
line up with the overflow tube on the radiator filler neck.
i
When you replace your surge tank pressure cap, an AC@ 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.
POWER STEERING FLUID
268

Downloaded from www.Manualslib.com manuals search engine .
.
.
.
.
.
.
.
AtNight ....................................... 188
Defensive ...................................... 173
Hill and Mountain ............................... 196
In Cities ........................................ 192
On Snow Or Ice ................................. 199
In The Rain ..................................... 190
In Winter ....................................... 198
On A Long Trip ................................. 194
On The Freeway ................................. 193
On Curves ...................................... 182
Through Deep Standing Water ...................... 87
Winter ......................................... 198
Drunken Driving ................................... 174
E
Economy. Fuel ..................................... 246
Electric Outside Mirror Control ...................... 123
Electrical Equipment. Adding .................... 224. 310
Electronic Climate Control .......................... 154
Electronic Level Control ............................ 152
Electronic Solar Sensor ............................. 159
Emergencies. Braking In ............................ 182
Emergencies. Steering In ............................ 183
Emergency Starting. Discharged Battery ............... 213
EmergencyTowing ................................. 219
Engine
Block Heater .................................... 86
Change Oil Indicator ............................. 151
Coolant ........................................ 265
Coolant Heater ................................... 86
Coolant Temperature Warning Lights ............... 136
Exhaust ......................................... 99
Oil ............................................ 253
Oil Additives .................................... 259
Oil Light ....................................... 138
Oil. When To Change ............................ 259
Overheating .................................... 222
Speed Limiter ................................... 139
Vehicle Speed Limiter (270 hp) .................... 139
Warning Light About Need For Service ............. 133
Ethanol In Gasoline ................................ 244
Exhaust. Caution .................................... 99
Exhaust. Dangerous Gas In ........................... 99
Expectant Mothers. Use Of Safety Belts By .............. 39
Explanation of Maint . Service ............. See Maint . Book
Express Down Window (Driver’s Side) ................. 101
.