1993 BUICK SKYLARK Owners Manual

Capacities and Specifications
Engine Code N1 (LG7)2 3.3L L-6 MFI 3300
Belt Tensions -
Automatically controlled by a self-tensioning idler
pulley. Tension adjustment.should new be
necessary.
Cooling System Capacity -
13 quarts/l2.5 liters
Crankcase Capacity -
4 quarts/3.8 liters
Air Conditioning Capacity(R12)d -
2.63 lbs. (1.19 kilograms)
Fuel Tank Capacity -
Transaxle -
15.2 gallons/57.5 liters
Capacity
4 quartd3.8 liters
Maintenance Item Part Numbers3 -
Air Filter - A974C
Fuel Filter
- GF48 1
Oil Filter - PF40
PCV Valve
- CV899C
Spark Plug
- 41-600, GAP 0.060”
1 8th Character of the Vehicle Identification Number.
2 Made in a GM plant in the United States.
3 Part numbers are AC type.
4 Air Conditioning Refrigerant - Not all air conditioning refrigerants are the same. If the air conditioning system in your
vehicle needs refrigerant, be sure the proper refrigerant
is used. If you’re not sure ask your Buick dealer.
264

Part 7 Maintenance Schedule
This part covers the maintenance required for your Buick . Your vehicle needs these services to retain its safety.
dependability and emission control performance
.
Part 7 includes:
Introduction
...................................................................... 266
A Word About Maintenance
.....................................................
Your Vehicle and the Environment ................................................ 267
How This Part is Organized
..................................................... 267
Section A: Scheduled Maintenance Services
.............................................
Using Your Maintenance Schedules ............................................... 268
Selecting the Right Schedule
....................................................
Schedule1 ................................................................... 270
Schedule11
.................................................................. 272
Explanation
of Scheduled Maintenance Services ..................................... 274
AtEachFuelFill
.............................................................. 276
At Least Once a Month .......................................................... 277
AtLeastOnceaYear
..........................................................
Section C: Periodic Maintenance Inspections ............................................ 279
Section
D: Recommended Fluids and Lubricants ......................................... 280
Section E: Maintenance Record
....................................................... 282
Section
B: Owner Checks and Services .................................................

IMPORTANT:
KEEP ENGINE OIL
AT THE PROPER
LEVEL AND CHANGE
AS
RECOMMENDED ,?.j :i i
Protection
Plan
Have you purchased the GM Protection Plan? The
Plan supplements your new vehicle warranties. See your
Buick dealer for details.
/
Introduction
A Word About Maintenance
We at General Motors want to help you keep your
vehicle in good working condition. But we don’t know
exactly how you’ll drive
it. You may drive very short
distances only a few times
a week. Or you may drive
long distances all the time in very hot, dusty weather.
You may use your Vehicle in making deliveries. Or you
may drive
it to work, to do errands or in many other
ways.
Because
of all the different ways people use their GM
vehicles, maintenance needs vary. You may even need
more frequent checks and replacements than you will
find in the schedules in this part.
So please read this part
and note how you drive. If you have any questions on
how to keep your vehicle in good condition, see your
Buick dealer, the place many GM owners choose to
have their maintenance work done.
Your dealer can be
relied upon to use proper parts and practices.
266

Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep your
vehicle in good working condition, but also helps the
environment. All recommended maintenance procedures
are important. Improper vehicle maintenance or the
removal
of important components can significantly
affect the quality of the-air we breathe. Improper fluid
levels or even the wrong tire inflation can increase the
level
of emissions from your vehicle. To help protect
our environment, and to help keep your vehicle in good
condition, please maintain your vehicle properly.
How This Part is Organized
The remainder of this part is divided into five sections:
“Section A: Scheduled Maintenance Services” shows
what to have done and how often. Some of these
services can be complex,
so unless you are technically
qualified and have the necessary equipment, you should
let your dealer’s service department or another qualified
service center do these jobs.
A CAUTION:
Performing maintenance work on a vehicle can
be dangerous. In trying to
do some jobs, you can
be seriously injured.
Do your own maintenance
work only
if you have the required know-how and
the proper tools and equipment for the job.
If you
have any doubt, have a qualified technician
do
the work.
If you are skilled enough to do some work on your
vehicle, you will probably want to get the service
information GM publishes. You will find a list of
publications and how to get. them in this manual. See
“Service Publications” in the Index.
“Section B: Owner Checks and Services” tells you what
should be checked whenever you stop for fuel. It also
explains what you can easily do to help keep your
vehicle in good condition.
“Section
C: Periodic Maintenance Inspections” explains
important inspections that your Buick dealer’s service
department or another qualified service center should
perform.

“Section D: Recommended Fluids and Lubricants” lists Section A: Scheduled Maintenance
some products GM recommends to help keep your
vehicle properly maintained. These products,
or their Services
equivalents, should be used whether you do the work
yourself
or have it done. Using Your Maintenance Schedules
“Section E: Maintenance Record” provides a place for
you to record the maintenance performed on your
vehicle. Whenever any maintenance is performed, be
sure to write it down in this section. This will help you
determine when your next maintenance should be done.
In addition, it is a good idea to keep your maintenance
receipts. They may be needed to qualify your vehicle for warranty repairs. This section tells you the maintenance services you
should have done and when you should schedule them.
Your Buick dealer knows your vehicle best and wants
you
to be happy with it. If you go to your dealer for your
service needs, you’ll know that GM-trained and
supported service people will perform the work using
genuine GM parts.
These schedules are for vehicles that:
0
0
0 carry passengers and cargo within recommended
limits. You will find these limits on your vehicle’s
Tire-Loading Information label. See “Loading Your Vehicle” in the Index.
are driven on reasonable road surfaces within legal
driving limits.
use the recommended unleaded fuel. See “Fuel”
in
the Index.
268

Selecting the Right Schedule
First you’ll need to decide which of the two schedules is
right for your vehicle. Here’s how to decide which
0
schedule to follow: 0
Schedule I
Is any one of these true for your vehicle?
0 Most trips are less than 4 miles (6 km).
Most trips are less than 10 miles (16 km) when
outside temperatures are below freezing.
0 The engine is at low speed most of the time (as in
door-to-door delivery,
or in stop-and-go traffic).
You operate your vehicle in dusty areas.
You tow a trailer. (With some models, you shouldn’t
ever tow a trailer. See “Towing a Trailer” in the
Index.
)
If any one (or more) of these is true for your driving,
follow Schedule I.
Schedule I1
Follow Schedule I1 only if none of the above conditions
is true.
269

I
b Scheduled Maintenance Services Schedule I -
Follow Schedule I if your car is MAINLY driven under one or more of the following conditions:
0 When most trips are less than 4 miles (6 kilometers).
0 When most trips are less. than 10 miles (16 kilometers) and outside temperatures remain below freezing.
0 When most trips indude extended idling and/or frequent low-speed operation as in stop-a\
nd-go traffic.
0 Towing a trailer."?
0 When operating in dusty areas.
Schedule I should also be followed if the car is used for delivery service, police, taxi or other commercial app\
lications.
TO BE SERVICED
(See Explanation of
Scheduled Maintenance Miles (kilometers) or
Services Following Months, Whichever
WHEN
TO PERFORM
Schedules I and 10
Item No. I
Occurs First
1. hgine
Oil & Filter Change months I
Every 3000 mi. (5000 km) or
2. Chassis Lubrication I Every other oil change
3. Throttle Body Mounting At 6 000 mi. (10 000 km)
Bolt Torque*
At
6 000'mi. (10 000 km) and
km) or as necessary
4. Tire & Inspection & then every 15 000 mi. (25 000
Rotation
5. Engine Accessory Drive
Belt(s) Inspection* Every
30 000 mi. (50 000 km) or 24 months.
MILES (000)
3 16 19 112115118121124127130(33136139142145148
5 10
a.
..
0
0
KILOMETERS (000)
65 70 75 80
a...
0 a
270

TO BE SERVICED
[See Explanation of
Scheduled Maintenance Miles (kilometers) or
WHEN
TO PERFORM
Services Following: I Months, Whichever
Schedules I and 16
Item No. I
Occurs First
7. Transaxle
Service See Explanation
of Scheduled
Maintenance Service
Following Schedules
I and I1
8. Spark Plug
Replacement*
9. Spark Plug Wire Inspection*T
10.
Air Cleaner Filter
Replacement*
Inspection*?
11. Fuel Tank, Cap & Lines Every
30 000 mi
(50 000 km)
MZLES (000) I ..
36912
KILOMETERS (000) . ’ I
The services
shown in this schedule up to 48 000 miles (80 000 km) should be performed after
48 000 miles at the same intervals.
* An Emission Control Service.
T The U.S. Environmental Protection Agency has determined that the failure to perform this maintenance item will not nullify the emission warranty or limit recall liability prior to the completion of
Record”. vehicle useful
life. General Motors, however, urges that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded in “Section E:Maintenance