CADILLAC SEVILLE 1993 4.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine AIR CLEANER
4.9 Liter
4.6 Liter (Northstar)
To gain access to the air cleaner element, loosen the four screws and lift
the top half of the air cleaner assembly.
Refer
to the Maintenance Schedule to determine when to replace the air
filter.
See “Scheduled Maintenance Services” in the Index.
277

Downloaded from www.Manualslib.com manuals search engine A CAUTION
Operating the engine with the air cleaner off can cause you or
others
to be burned. The air cleaner not only cleans the air, it
stops flame if the engine backfires.
If it isn’t there, and the
engine backfires, you could be burned. Don’t drive
with it off,
and be careful working on the engine with the air cleaner off.
J
NOTICE:
If the air cleaner is off, a backflre can cause a damaging tngine
fire, And, dirt can easily get into your engine, which will drmagc
it, Always have the air cleaner io place when you’rt ddvlng.
AUTOMTIC TRANSAXLE FLUID
When to Check and Change:
A good time to check your automatic transaxle fluid level is when the
engine oil is changed. Refer to the Maintenance Schedule to determine
when to change your
fluid. See “Scheduled Maintenance Services” in the
Index.
How to Check
Because this operation can
be a little difficult, you may choose to have
this done at a Cadillac dealership Service
Department.
If you do it yourself, be sure to follow all the instructions here, or you
could get a false reading on the dipstick.
278

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Wait at least 30 minutes &ore checking the transaxle fluid level if you
have been driving:
When outside temperatures are above 90’F (32’ C).
At high speed for quite a while.
In heavy traffic -- especially in hot weather.
While pulling a trailer.
To get the right reading, the fluid should be at normal operating
temperature, which is
180°F to 200°F (82OC to 93’C).
Get the vehicle warmed up
by driving about 15 miles (24 km) when
outside temperatures are above
5O0F (loo C). If it’s colder than 5OoF
(lO°C), you
may have to drive longer.
To check the fluid level:
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0
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0
Park your vehicle on a level place.
Place the shift lever in
“PYy (Park) with the parking brake applied.
With your foot
on the brake pedal, move the shift lever through each
gear range, pausing
for about three. seconds in each range, Then,
position
the shift lever in “P” (Park).
L-ct Ihc cngirlr ruI1 ;II idlc for thrw to five minutes.
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279

Downloaded from www.Manualslib.com manuals search engine Then. without shutting off the engine. follow these steps:
4.9 Liter
4.6 Liter (Northstar)
Tbrn cap
counterclockwise
to
unlock cap.
1. Pull out the dipstick and wipe it with a clean rag or paper towel.
2. Push it back in all the way, wait three seconds and then pull it back out
again.
280

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4.9 Liter
4.6 Liter (Northstar)
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3. Check both sides of the dipstick, and read the lower level. The fluid
level must be in the cross-hatched area.
4. If the fluid level is where it should be, push the dipstick back in all the
How to Add Fluid:
way.
Refer to the Maintenance Schedule to determine what kind
of transaxle
fluid to
use. See “Recommended Fluids and Lubricants” in the Index.
If the fluid level is low, add only enough of the proper fluid to bring the
level into the cross-hatched area
on the dipstick. It doesn’t take much
fluid, generally
less than a pint. Don’t overfill. We recommend you use
only fluid labeled DEXRON@-IIE, because fluids with that label
are
made especially for your automatic transaxle. Damage caused by fluid
other than DEXRON@-IIE is not covered
by your new vehicle warranty.
After adding fluid, recheck the fluid level as described under “How to
Check.”
281

Downloaded from www.Manualslib.com manuals search engine When the correct fluid level is obtained, push the dipstick back in all
the way.
How To Reset Transaxle Fluid Change Indicator: 4.6L (Northstar)
Your vehicle is equipped with a transaxle fluid change indicator.
A
“CHANGE TRANS FLUID” message will display on the Information
Center
when the power train computer determines that the transaxle
fluid needs to be changed or at each 100,000 miles
(160,000 km) interval,
whichever occurs first. When this message appears, change the t\
ransaxle
fluid and reset the transaxle fluid life indicator
as follows:
Turn the key “ON” with the engine stopped.
Press and hold the “OFF” and “REAR DEFOG” buttons on the
climate control simultaneously
until the “TRANS FLUID RESET”
message appears
in the Information Center (between 5 and 20
seconds).
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 coo’ It for
your Cadillac will:
Give freezing protection down to -34°F (-37’C) .
Give boiling protection up to 262 ” F (128 ” C) .
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 c\
hange.
If you use these, you don’t need to add anything else.
Y
c.
282

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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
water and a proper antifreeze.
Adding Coolant
I 4.6 Liter (Northstar)
TO Check Coolant
When.
your engine is
cold, the coolant level
should be at “FULL
COLD”, or a little
higher.
283
P

Downloaded from www.Manualslib.com manuals search engine When your engine is warm and the “ENGINE COOLANT LOW”
message does not appear on the Driver Information Center, coolant
is at
the proper fill level.
4.9 Liter
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 4.9L If you need more coolant, add the proper mix at
the coolant recoverv tank.
A CAUTION
flrrning the radiator pressure cap when the engine and radiator
are hot can allow steam and scalding liquids to blow
out and
bum 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 a little -- when the engine and
radiator are hot.
Add coolant mix at the recovery tank, but be careful not to spill it.
284

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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 enough. Don’t
spill coolant on a hot engine.
To Add Coolant 4.6L (Northstar): If you need more coolant, add the
proper
mix at the coolant surPe tank.
A CAUTION:
lbrning the surge tank pressure cap when the engine and
radiator are hot
can allow steam and scalding liquids to blow
out and burn you badly. Never turn the surge tank pressure cap
-- even a little -- when the engine and radiator are hot.
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 enough. Don’t spill coolant
on a hot engine.
To Check or Add Coolant: When the engine is cold, the coolant level
should be at
“FULL COLD,” or a little higher. Remove the pressure cap
from the surge tank;
use a flashlight as necessary to see into the tank. The
coolant Ievel should be at or above the seam inside the tank.
If you need more coolant, add the proper mix.

Downloaded from www.Manualslib.com manuals search engine MUTOR OR SURGE TANK
PRESSURE CAP
When you replace your radiator or 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
0
4.9 Liter
286