check engine CADILLAC SEVILLE 1996 4.G Workshop Manual

Downloaded from www.Manualslib.com manuals search engine Section 6 Service and Appearance Care
Here you will find information about the care of your
Cadillac.
This section begins with service and fuel
information,
and then it shows how to check important fluid
and lubricant levels. There is
also technical information
about your vehicle, and a part devoted
to its appearance care.
Service
Your Cadillac dealer knows your vehicle best and wants
you to be happy with it. We hope you’ll go to your
dealer for all your service needs. You’ll get genuine
GM
parts and GM-trained and supported service people.
We hope you’ll want to keep your GM vehicle all
GM.
Genuine GM parts have one of these marks:
Doing Your Own Service Work
If you want to do some of your own service work, you’ll
want to get the proper Cadillac service manual. It tells
you much more about how
to service your Cadillac than
this manual can.
To order the proper service manual, see
”Service and Owner Publications” in the Index.
Your vehicle has an air bag system. Before attempting
to do your own service work, see ”Servicing Your Air
Bag-Equipped Cadillac” in the Index.
You should keep a record with all parts receipts and
list the mileage and the date
of any service work you
perform. See “Maintenance Record” in the Maintenance
Schedule booklet.
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I A CAUTION:
You can be injured and your vehicle could be
damaged if you try to do service work on a
vehicle without knowing enough about it.
~ 0 Be sure you have sufficient knowledge,
experience, and the proper replacement
parts and tools before
you attempt any
vehicle maintenance task.
0 Be sure to use the proper nuts, bolts and
other fasteners. “English” and “metric”
fasteners can be easily confused. If you
use
the wrong fasteners, parts can later break
or fall off. You could be hurt.
Fuel
Use premium unleaded gasoline rated at 91 octane or
higher. At a minimum,
it should meet specifications
ASTM D4814 in the United States and CGSB 3.5-M93
in Canada. Improved gasoline specifications have been
developed by the American Automobile Manufacturers
Association (AAMA) for better vehicle performance
and engine protection. Gasolines meeting the AAMA
specification could provide improved driveability and
emission control system protection compared to
other gasolines.
Be sure the posted octane for premium is at leasf
9 1. If
the octane is less than 91, you may get a heavy knocking
noise when you drive. (In an emergency, you may be
able to use
a lower octane -- as low as 87 -- if heavy
knocking does not occur.) If you’re
using 91 or higher
octane unleaded gasoline and you still hear heavy
knocking, your engine needs service.
If your vehicle is certified to meet California Emission
Standards (indicated on the underhood tune-up label),
it is designed to operate on fuels that meet California
specifications. If such fuels are not available
in states
adopting California emissions standards, your vehicle
will operate satisfactorily
on fuels meeting federal
specifications, but emission control system performance
may be affected. The malfunction indicator lamp on
your instrument panel may turn on and/or your vehicle
may fail a smog-check
test. If this occurs, return to your
authorized Cadillac dealer for diagnosis to determine the
cause of failure. In the event it
is determined that the
cause
of the condition is the type of fuels used, repairs
may not be covered by your warranty.
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In Canada, some gasolines contain an octane-enhancing
additive called
MMT. If you use such fuels, your
emission control system performance may deteriorate
and the malfunction indicator lamp on your instrument
panel may turn
on. If this happens, return to your
authorized Cadillac dealer for service.
To provide cleaner air, all gasolines are now required to
contain additives that will help prevent deposits from
forming in your engine and fuel system, allowing your
emission control system to function properly. Therefore,
you should
not have to add anything to the fuel. In
addition, gasolines containing oxygenates, such
as ethers
and ethanol, and reformulated gasolines may be
available in your area to help clean the air. General
Motors recommends that you use these gasolines if they
comply with the specifications described earlier.
NOTICE:
Your vehicle was not designed for fuel that
contains methanol.
Don’t use it. It can corrode
metal parts in your fuel system and
also damage
plastic and rubber
parts. That damage wouldn’t
be covered under your warranty.
Fuels in Foreign Countries
If you plan on driving in another country outside the
United States or Canada, the proper fuel may
b.e hard
to find. Never use leaded gasoline or
any other fuel not
recommended in the previous text
on fuel. Costly repairs
caused by use
of improper fuel wouldn’t be covered by
your warranty.
To check on fuel availability, ask an auto club or contact
a major oil company that does
business in the country
where you’ll be driving.
You can also write
us at the following address for
advice. Just tell us where you’re
going and give your
Vehicle Identification Number
(VIN).
General Motors Overseas Distribution Corporation
North American Export Sales (NAES)
1908 Colonel Sam Drive
Oshawa, Ontario
LlH 8P7

Downloaded from www.Manualslib.com manuals search engine When you put the cap back on, turn it to the right until
you hear at least three clicks. Make sure you fully install
the
cap.
I NOTICE:
If you need a new cap, be sure to get the right
type. Your dealer can get one for you. If you get
the wrong type, it may not fit
or have proper
venting, and your fuel tank and emissions system
might be damaged.
Checking Things Under the Hood
A CAUTION:
..
An electric fan under the hood can start up and
injure you even when the engine
is not running.
Keep hands, clothing and tools away from any
underhood electric fan.
A CAUTION:
Things that burn can get on hot engine parts and
start
a fire. These include liquids like gasoline,
oil, coolant, brake fluid, windshield washer and
other fluids,
and plastic or rubber. You or others
could be burned.
Be careful not to drop or spill
things that will
burn onto a hot engine.
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Downloaded from www.Manualslib.com manuals search engine Engine Oil
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A CHECK OIL LEVEL message will appear when the
engine oil is approximately a quart low.
If the message
is displayed, check the dipstick level and add oil
as needed.
It's a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil must
be
warm and the vehicle must be on level ground. The
engine oil dipstick is
located behind the radiator
on the
driver's side of the
engine. The black .handle
says
ENGINE OIL on it.
Turn
off the engine and give
the
oil a few minutes to
drain
back into the oil pan.
If you don't, the oil
dipstick might not show
the actual level.
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Downloaded from www.Manualslib.com manuals search engine Checking Engine Oil
Pull out the dipstick and clean it with a paper towel or
cloth, then push it back in all the way. Remove it again,
keeping the tip down, and check the level.
When to Add Oil
If the oil is at or below the ADD line, then you’ll need
to add some oil.
But you must use the right kind. This
part explains what kind of oil to use. For crankcase
capacity, see “Capacities and Specifications” in
the Index.
NOTICE:
Don’t add too much oil. If your engine has so
much oil that the oil level gets above the upper
mark
that shows the proper operating range,
your engine could be damaged.
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Downloaded from www.Manualslib.com manuals search engine When to Change Engine Oil
Your Cadillac has an Oil Life Indicator. This feature
will let you
know when to change your oil and
filter
-- usually between 3,000 miles (5 000 km) and
7,500 miles (12 500 km) since your last oil change.
Under severe conditions, the indicator may come
on
before 3,000 miles (5 000 km). Never drive your vehicle
more than
7,500 miles (12 500 km) or 12 months,
(whichever occurs first) without an oil change.
The system won’t detect dust in the oil.
So, if you
drive in a dusty area, be sure to change your oil every
3,000 miles (5 000 km) or sooner if the CHANGE
ENGINE
OIL message comes on. Remember to reset
the Oil Life Indicator when the oil has been changed.
For more information, see “Oil Life Indicator’’ in
the Index.
How to Reset the Oil Life Indicator
c”
After the oil has been changed, display the OIL LIFE
LEFT message by pressing the INFORMATION button.
Then press and hold the RESET button until the display
shows
“100.” This resets the oil life index. The message
will remain
off until the next oil change is needed. The
percentage of oil
life remaining may be checked at any time
by pressing the INFORMATION button
several
times until the OIL LIFE LEFT message appears. For
more information on the Oil Life feature, see “Oil Life
Indicator’’ in the Index.
What to Do with Used Oil
Did you know that used engine oil contains certain
elements that may be unhealthy for your skin and could
even cause cancer? Don’t let used oil stay on your
skin
for very long. Clean your skin and nails with soap and
water, or a good hand cleaner. Wash or properly throw
away clothing or rags containing used engine oil..(See
the manufacturer’s warnings about the use and disposal
of oil products.)
Used oil can be a real threat to the environment. If you
change your own oil, be sure to
drain all free-flowing oil
from the filter before disposal. Don’t ever dispose
of oil
by putting it in the trash, pouring it on the ground. into
sewers, or into streams
or bodies of water. Instead,
recycle it by taking
it to a place that collects used oil. If
you have a problem properly disposing of your used oil,
ask your dealer,
a service station or a local recycling
center for help.
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Automatic Transaxle Fluid
When to Check and Change
A good time to check your automatic transaxle fluid
level is when the engine oil
is changed.
Change both the fluid
and filter every 50,000 miles
(83 000 km) if the vehicle is mainly driven under one or
more of these conditions:
In heavy city traffic where the outside temperature
regularly reaches
90°F (32°C) or higher.
0 In hilly or mountainous terrain.
When doing frequent trailer towing.
0 Uses such as found in taxi, police or delivery service,
If
you do not use your vehicle under any of these
conditions, the fluid and filter do not require changing.
See “Scheduled Maintenance Services”
in the
Maintenance Schedule
booklet.
How to Check
Because this operation can be a little difficult, you may
choose to have this done at your 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.
I
NOTICE:
Too much or too little fluid can damage your
transaxle.
Too much can mean that some of the
fluid could come out and fall
on hot engine parts
or exhaust system parts, starting a fire. Be sure to
get an accurate reading if
you check your
transaxle fluid.
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Downloaded from www.Manualslib.com manuals search engine Wait at least 30 minutes before checking the transaxle
fluid level if you have been driving:
When outside temperatures are above 90°F (32°C).
0 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 OF to 200 OF
(82°C to 93°C).
Get the vehicle warmed up by driving about 15 miles (24 km)
when outside temperatures are above 50°F (10°C). If it's
colder
than 50°F (lO"C), you may have to drive longer.
Checking the Fluid Level
0 Park your vehicle on a level place. Keep the engine
0 With the parking brake applied, place the shift lever
0 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 PARK (P).
running.
in
PARK (P).
Let the engine run at idle for three to five minutes. Then,
without shutting off the engine, follow these steps:
1. The black transaxle fluid cap is located next to the
radiator hose and below the air cleaner assembly
on
the driver's side of the engine. Remove the air
cleaner assembly so you can reach the transaxle fluid
cap, The assembly is attached to the vehicle
by two
fasteners. Simply lift up on the air cleaner assembly
to remove it. Find the transaxle fluid cap and turn it
counterclockwise to remove. 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.
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3-
Don’t overfX We recommend you use only fluid
labeled DEXRON@-111, because fluid with that label
is made especially for your automatic transaxle.
Damage caused by fluid other than DEXRON-III is
not covered by your new vehicle warranty.
After adding fluid, recheck the fluid level as
described under “How to Check.”
3. Check both sides of the dipstick, and read the lower
level. The fluidlevel must be
in the cross-hatched area.
4. If the fluid level is in the acceptable range, push the
dipstick back
in all the way.
5. Replace the air cleaner assembly.
How to Add Fluid
Refer to the Maintenance Schedule to determine what
kind
of transaxle fluid to use. See “Recommended Fluids
and Lubricants”
in the Maintenance Schedule booklet.
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.
1. Pull out the dipstick.
2. Using a long-neck funnel, add enough fluid at the
dipstick hole
to bring it to the proper level. It doesn’t
take much fluid, generally less than a pint (0.5 L).
0 When the correct fluid level is obtained, push.the
dipstick back
in all‘ the way.
How to Reset Transaxle Fluid
Change Indicator
Your vehicle is equipped with a transaxle fluid change
indicator.
A CHANGE TRANS FLUID message will
display on the Driver Information Center (DIC) when
the powertrain computer determines that the transaxle
fluid needs to be changed. See your Maintenance
Schedule booklet for more information. When this
message appears, change the transaxle fluid and reset
the transaxle fluid life indicator as follows:
1. Turn the ignition on but do not start the engine.
2. Press and hold the OFF and rear defog buttons on the
climate control at the same time until the TRANS
FLUID
RESET message appears on the DIC.
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