1994 CADILLAC SEVILLE coolant

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.
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Downloaded from www.Manualslib.com manuals search engine WNTER DmNG
Here are some tips for winter driving:
Have your Cadillac in good shape for winter. Be sure your engine
You may want to put winter emergency supplies in your trunk.
coolant
mix is correct.
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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.
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Downloaded from www.Manualslib.com manuals search engine ENGINE OVERHEATING
You will find the warning light about a hot engine on your instrument
panel on Canadian and Export vehicles. The Driver Information Center
will display either “ENGINE
COOLANT HOT IDLE ENGINE’ or
“STOP ENGINE ENGINE OVERHEATING”.
If Steam Is Coming From Your Engine
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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
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Downloaded from www.Manualslib.com manuals search engine 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

Downloaded from www.Manualslib.com manuals search engine If the coolant inside the coolant surge tank is boiling, don’t do anything
else until it cools down.
r
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. Should a low coolant condition exist, an overheat
protection
“LIMP HOME” feature which alternates firing groups of four
cylinders for
a predetermined number of cycles to prevent engine
damage, enabling your vehicle to be driven to the nearest service center.

Downloaded from www.Manualslib.com manuals search engine I
Engine damage from running your engine without coolant isn’t
covered
by your warranty.
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’t visible
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 fiose, heater hoses, radiator, -
water pump or somewhere else in the cooling system. -
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