1994 BUICK PARK AVENUE maintenance

Table of Contents
How to Use this Manual ................................................................ 10
This part tells you how to use your manual and includes safety and vehicle damage \
warnings and symbols.
Seats and Restraint Systems ............................................................. 13
This part tells you how to use your seats and safety belts properl\
y. It also explains the “SRS” system.
FeaturesandControls .................................................................. 63
This part explains how to start and operate your Buick.
Comfort Controls and Audio Systems ..................................................... 131
This part tells you how to adjust the ventilation and comfort controls and how to operate your
sound system.
Here you’ll find helpful information and tips about
the road and how to drive under different conditions.
ProblemsontheRoad .................................................................. 195
This part tells you what to do if you have a problem while driving, such as a flat tire or engine
overheating, etc.
Here
the manual tells you how to keep your Buick running properly and \
looking good.
This part tells you when to perform vehicle maintenance and what fluids and lubricants to use.
This part tells you how
to contact Buick for assistance and how to get service publications. It also
gives you information on “Reporting Safety Defects” on pag\
e
305.
Here’s an alphabetical listing of almost every subject in this manual. You can use it to quickly find
something you want to read.
YourDrivingandtheRoad .............................................................. 161
Serviceand Appearancecare
............................................................ 227
Maintenanceschedule .................................................................. 283
Customer Assistance Information
........................................................ 303
Index
........................................................................\
........ 311
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Is the smoke from an air bag inflation harmful?
The particles emitted during air bag inflation are not
harmful to most people. Some people with respiratory
ailments may experience difficulty breathing if they stay
in the vehicle with the windows closed after air bag
inflation.
So, if your air bag inflates, you and any
passengers should exit the vehicle if and when it
is safe
to do so. If you or your passengers can’t get out of the
vehicle, try to get fresh air by opening a window,
turning on the fan, or opening a door.
Servicing Your Air Bag-Equipped Buick
Air bags affect how your Buick should be serviced.
There
are parts of the air bag system in several places
around your vehicle. You don’t want the system to
inflate while someone
is working on your vehicle. Your
Buick dealer and the
1994 Park Avenue Service Manual
have information about servicing your vehicle and
the
air bag system. The air bag system does not need regular
maintenance.
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When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal down
while you:
Start your engine;
0 Shift into a gear; and
0 Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Maintenance When Trailer Towing
Your vehicle will need service more often when you’re
pulling a trailer. See the Maintenance Schedule for more
on this. Things that are especially important in trailer
operation are automatic transaxle fluid (don’t overfill),
engine oil, belts, cooling system, and brake adjustment.
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.
Check periodically to see that all hitch nuts and bolts are
tight.
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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:
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,
Doing Your Own Service Work
If you want to do some of your own service work, you’ll
want to get the proper Buick Service Manual. It tells you
I
much more about how to service your Buick than this
manual can.
To order the proper service manual, see
“Service Publications”
in the Index.
I NOTICE:
I If you try to do your own service work without
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.
knowing enough about it, your vehicle could be
damaged.
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Before closing the hood, be sure all the filler caps are on
properly. Then pull the hood down and close it firmly.
Engine Accessory Belt
A
D
The 3800 (L27) engine uses an engine accessory belt.
This diagram shows the features connected by the belt
routing. See “Maintenance Schedule” in the Index for
when to check
the belt.
A. Power Steering
B. Crank
C. Coolant Pump
D. Air Conditioning
E. Alternator
E Tensioner
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3800 Supercharged (L67) Engine
(Option)
Your Park Avenue Ultra has a 3800 Supercharged
engine. Buick chose supercharging rather than
turbocharging because Buick emphasizes smooth,
refined power.
The Supercharger is a device which is designed to pump
more air into the engine than it would normally use.
This air mixed with fuel, creates increased engine
power. Since
the Supercharger is a pump and is driven
from an engine accessory drive belt, increased pressure
is available at all driving conditions.
The powertrain control module (PCM), works with a
vacuum control to regulate the increased pressure
required during specific driving conditions. When this
increased pressure or boost is not desired, such as during
idling and light throttle cruising, the excess air that the
Supercharger is pumping
is routed through a bypass. All
of these controls, working together provide high
performance character and
fuel efficiency in the 3800
V6 Supercharged Buick engine.
The power steering pump uses a remote reservoir
mounted on the throttle and cruise control cable bracket.
See “Maintenance Schedule’’ in
the Index for when you
should check the fluid.
Engine Accessory Belt
The Supercharged 3800 engine uses two accessory drive
belts. One belt drives the generator and the power
steering pump. The second belt drives the supercharger,
coolant pump and air conditioning compressor. Each
belt has its own tensioner and idler pulley.
1. Front Belt
C. Crank
2. Back belt D. Supercharger
A. Generator
E. Coolant Pump
B. Power Steering Pump E Air Conditioning
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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.
What Kind of Oil to Use: See “Recommended Fluids and
Lubricants”
in the Index. Use only the recommended oil.
How to Check and Add Oil: Check oil only when the
engine is cold. Allow the engine to cool
2 to 3 hours after
running.
1. Remove the wiring harness shield.
2. Clean the area around the oil fill plug before
removing
it.
3. Remove the oil fill plug using a 3/16 allen wrench.
4. The oil level is correct when it just reaches the
bottom
of the threads of the inspection hole.
5. Replace the oil plug with the O-ring in place. Torque
to 10 Nom (88 lb. in.).
6. Replace the wiring harness shield.
Engine Oil
CHECK
OIL LEVEL
If the “CHECK OIL
LEVEL” light on the
instrument panel
comes on,
it means
you need to check
your engine oil level
right away.
For more information, see “CHECK
OIL LEVEL” light
in the Index. You should check your engine oil level
regularly; this is an added reminder.
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Refer to the Maintenance Schedule to determine when
to replace the air filter.
See “Scheduled Maintenance Services”
in the Index.
NOTICE:
If the air cleaner is off, a backfire can cause a
damaging engine fire. And, dirt can easily get
into your engine, which will damage
it. Always
have the air cleaner
in place when you’re driving.
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. 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 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.
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, starting a fire. Be sure
to get
an accurate reading if you check your transaxle
fluid.
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