CADILLAC DEVILLE 1993 7.G Owners Manual

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 Adding Coolant
To Check Coolant:
When your engine
is
cold, the coolant level
should be at “FULL
COLD,” or a little
higher. When your
engine is
warm, the
level should be
up to
“FULL
HOT,” or a
little higher.
To Add Coolant: If you need more coolant, add the proper mix at the
coolant recovery tank.
A CAUTION: I
lhrning the radiator pressure cap when the engine and radiator si:;
-z. *?’
are hot can allow steam and scalding liquids to blow out and
burn you badly. With the coolant recovery tank, you will almost
never have to add coolant at the radiator. Never turn the
radiator pressure cap
-- even q little -- when tken le and
radiator are hot.
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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.
-
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
I-
_I
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 -.. POWER STEEHNG FLUID
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i
__ How To Check Power Steering Fluid:

Downloaded from www.Manualslib.com manuals search engine What to Add:
Use the proper fluid listed in your Maintenance Schedule.
WINDSHIELD WASHER FLUID
To Add:
Open the cap labeled
“WASHER
FLUID
ONLY .” Add washer
fluid until the
‘‘FULL?
mark is reached.
282

Downloaded from www.Manualslib.com manuals search engine as
NOTICh:
When using concentrated washer fluid, follow the
qanufacturmr +tructions for adding water.
)on% mix water with ready-to-use washer fluid. Water can
cause the solution to freeze and damage your washer fluid
nk and other parts of the washer system. Also, water
esn’ !le; as .. - er fluid,
pill ya washer fluid tank only 3/4 full when it’s very cold.
This allows for expansion, which could damage the tank
if it
is
0- --1plete’:- full.
us adiator antifreeze in your wind - .ield washer. It
can damage
your washer system and paint.
HEADLIGHT WASHER FLUID (EXPORT
ONLY)
To Add:
i” 3.
- - t
Open the cap labeled
“WASHER FLUID
ONLY .” Add
fluid until the bottle is
full.
- windshield washer
._ ~

Downloaded from www.Manualslib.com manuals search engine BRAKE MASTER CYZINDER
Your brake master cylinder is here. It is filled with DOT-3 brake fluid.
,. ! J
There are only two reasons why the brake fluid level in your master
cylinder might
go down. The first is that the brake fluid goes down to an
acceptable level during normal brake lining wear. When new linings are
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284

Downloaded from www.Manualslib.com manuals search engine put in, the fluid level goes back up. The other reason is that fluid is
leaking out
of the brake system. If it is, you should have your brake
system fixed, since a leak means that sooner
or later your brakes won’t
work well, or won’t work at all.
So, it isn’t a good idea to “top off” your
brake fluid. Adding brake fluid won’t correct a leak.
If you add fluid when
your linings are worn, then you’ll have too much fluid when you get new
brake linings.
You should add (or remove) brake fluid, as necessary, only
when work is done on the brake hydraulic system.
I
I A= CAUTION
I
I only when work is done on the brake hydraulic system.
If you have too much brake fluid, it can spill on the engine. The
fluid will burn if the engine is hot enough. You or others could
be burned, and your vehicle could be damaged. Add brake fluid
U
When your brake fluid falls to a low level, your brake warning light will
come on. See “Brake System Warning Light” in the Index.
To Check Brake Fluid:
You can check the brake fluid without taking off the cap. If it’s low, fill it
to the maximum “FLUID LEVEC’ indicator.
285

Downloaded from www.Manualslib.com manuals search engine What to Add:
When you do need brake fluid, use only DOT-3 brake fluid -- such as
Delco Supreme
11s (GM part No.1052535). Use new brake fluid from a
sealed container only.
REPLACING BRAKE SYSTEM PARTS
The braking system on a modern vehicle is complex. Its many parts have
to be
of top quality and work well together if the vehicle is to have really
good braking. Vehicles
we design and test have top-quality GM brake
parts in them, as your Cadillac does when it is new. When you replace
parts of your braking system
-- for example, when your brake linings wear
down and you have to have new ones put in
-- be sure you get new
genuine
GM replacement parts. If you don't, your brakes may no longer
work properly. For example, if someone puts in brake linings that are
wrong for your vehicle, the balance between your front and rear brakes
can change, for the worse. The braking performance you've come to
expect can change in many other ways if someone puts in the wrong
replacement brake parts.
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Downloaded from www.Manualslib.com manuals search engine - BATTERY
Every new Cadillac has a Delco Freedoms battery. You never have to
recommend a Delco Freedoms battery. Get one that has the catalog
number shown on the original battery’s label.
__ add water to one of these. When it’s time for a new battery, we
?+hide Storage
If you’re not going to drive your vehicle for 25 days or more, take off the
black, negative
(-) cable from the battery. This will help keep your battery
from running down.
A CAUTION:
Batteries have acid that can burn you and gas that can explode.
You can be badly hurt if you aren’t careful. See LLJump Starting’’
in the Index for tips on working around a battesy without
getting hurt.
Contact your dealer to learn how to prepare your vehicle for longer
storage periods.
Battery Power Loss
- .-
If you lose battery power or the battery is disconnected, your car’s
computer must be programmed. It takes just over 20 minutes
to do it. If
you want to do it yourself, here’s how:
Apply the parking brake.
Make sure the front wheels are straight.
Turn off the Electronic Climate Control.
~
-
Start the engine in ‘‘P” (Park) and let it idle for 15 minutes. Then:
idle
for 3 minutes or more. Do not accelerate the engine. Then:
- Put your foot on the brake pedal, shift the transaxle to @ and let it