1997 BUICK REGAL service

Service
Your Buick 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 use the proper Buick Service Manual. It tells
you much more about how
to service your Buick 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 Buick” 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 Index.
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A CAUl ON:
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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.
Be sure you have sufficient knowledge,
experience, the proper replacement parts
and tools before you attempt any vehicle
maintenance task.
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.
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Adding Equipment to the Outside of
Your Vehicle
Things you might add to the outside of your vehicle can
affect the airflow around it. This may cause wind noise
and affect windshield washer performance. Check with
your Buick dealer before adding equipment
to the
outside
of your vehicle.
Fuel
The 8th digit of your vehicle identification number
(VIN) shows the code letter for your engine. You will
find the VIN at the top left of your instrument panel.
(See “Vehicle Identification Number” in the Index.)
If you have the
3800 engine (VIN Code K), use
regular unleaded gasoline rated at 87 octane or higher.
If you’re using fuel rated at the recommended octane
or higher and you hear heavy knocking, your
engine
needs service. But don’t worry if you hear a
little pinging noise when you’re accelerating or driving
up a hill. That’s normal, and you don’t have to buy a
higher octane fuel to get rid
of pinging. It’s the heavy,
constant knock that means you have a problem.
If you have the 3800 Supercharged engine (VIN
Code l), use premium unleaded gasoline rated at
91 octane or higher. With the 3800 Supercharged
engine, in an emergency,
you may be able to use a
lower octane -- as low as 87 -- if heavy knocking
does not occur.
If you are using 91 or higher octane
unleaded gasoline and you hear heavy knocking, your
engine needs service.
At
a minimum, the gasoline you use should meet
specifications ASTM D48
I4 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 least
91
(at least 89 for middle grade and 87 for regular). If the
octane is less than 87, you may get
a heavy knocking
noise when you drive. If it’s bad enough, it can damage
your engine.
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If your vehicle is certified to meet California Emission
Standards (indicated on the underhood emission control
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 Buick 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.
Some gasolines that are not reformulated
for low
emissions contain an octane-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl (MMT);
ask your service station operator whether or not his fuel
contains MMT. General Motors does not recommend the
use of such gasolines.
If fuels containing MMT are used,
spark plug life may be reduced and your emission
control system performance may be affected. The
malfunction indicator lamp
on your instrument panel
may turn on. If this occurs, return to your authorized
Buick dealer for service.
To provide cleaner air, all gasolines in the United States
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.
I 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.
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Engine Oil Additives
Don’t add anything to your oil. Your Buick dealer is
ready to advise
if you think something should be added.
When to Change Engine Oil
If any one of these is true for you, use the short tripkity
maintenance schedule:
a
a
a
a
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
Most trips include extensive idling (such as frequent
driving in stop-and-go traffic).
Most trips are through dusty areas.
You frequently tow a trailer or use
a carrier on top of
your vehicle.
The vehicle
is used for delivery service, police, taxi
or other commercial application.
Driving under these conditions causes engine oil to
break down sooner. If any one of these is true for your
vehicle,
then you need to change your oil and filter every
3,000 miles (5 000 km) or 3 months -- whichever occurs
first. (See “Change Oil Soon” Light
in the Index.)
If none of them is true, use the long trip/highway
maintenance schedule. Change the oil and filter every
7,500 miles (12 500 km) or 12 months -- whichever
occurs first. Driving
a vehicle with a fully warmed
engine under highway conditions causes engine
oil to
break down slower.
(See “Change Oil Soon” Light
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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Air Cleaner
To check or replace the air
filter, loosen the wing nut
on the
air duct and lift up
on the
two clips located
on the top of the filter
cover, Disconnect the duct
and reposition it while
removing the side cover.
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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.
Pull out the filter. Be sure to install the air filter and NOTICE:
install the cover tightly when you are finished.
Refer to the Maintenance Schedule to determine when to
If the air cleaner is off, a backfire can cause a
replace the air filter. damaging engine fire. And, dirt can easily get
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See “Scheduled Maintenance Services” in the Index.
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into your engine, which will damage it. Always
have the air cleaner in place when you’re driving.
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Supercharger Oil
Unless you are technically qualified and have the proper
tools, you should let your dealer or a qualified service
center perform this maintenance.
When to Check
Check oil level every 30,000 miles (50 000 km) or every
36 months, whichever occurs first.
What Kind of Oil to Use
See “Recommended Fluids and Lubricants’’ in the Index
and use only the recommended oil.
How to Check and Add Oil
Check oil only when the engine is cold. Allow the
engine to cool two to three hours after running.
If you remove the supercharger oil fill plug while
the engine is hot, pressure may cause
hot oil to
blow out
of the oil fill hole. You may be burned.
Do not remove the plug until the engine cools.
1.
2.
3.
3.
Clean the area around the oil fill plug before
removing it.
Remove
the oil fill plug using a 3/16 inch Allen
wrench.
The oil level is correct when
it just reaches the
bottom
of the threads of the inspection hole.
Replace the oil plug with the O-ring
in place.
Torque to
88 lb-in (10 N-m).
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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.
In hilly or mountainous terrain.
When doing frequent trailer towing.
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 Index.
How to Check
Because this operation can be a little difficult, you may
choose to have this done at your Buick 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.
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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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NOTICE:
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Using the wrong fluid can badly damage
brake system parts. For example, just a few
drops
of mineral-based oil, such as engine
oil, in your brake system can damage brake
system parts
so badly that they’ll have to be
replaced. Don’t let someone put in the
wrong kind
of fluid.
If you spill brake fluid on your vehicle’s
painted surfaces, the paint finish can be
damaged. Be careful not
to spill brake fluid
on your vehicle. If you do, wash it off
immediately. See “Appearance Care” in
the Index.
Brake Wear
Your Buick has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that
make a high-pitched warning sound when the brake
pads are worn and new pads are needed. The
sound
may come and go or be heard all the time your vehicle
is moving (except when you are pushing on the brake
pedal firmly).
The brake wear warning sound means that soon
your brakes won’t work well. That could lead to
an accident. When you hear the brake wear
warning sound, have your vehicle serviced.
I NOTICE:
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Continuing to drive with worn-out brake pads
could result in costly brake repair.
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