1994 BUICK PARK AVENUE Owners Manual

Section A: Scheduled Maintenance
Services
Using Your Maintenance Schedules
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.
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
schedule to follow:
Schedule I
Is any one of these true for your vehicle?
Most trips are less than 4 miles (6 km).
0 Most trips are less than 10 miles ( 16 km) when
outside temperatures are below freezing.
door-to-door delivery, or
in stop-and-go traffic).
0 The engine is at low speed most of the time (as in
You operate your vehicle in dusty areas.
You tow a trailer. (With some models, you should
never 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.
287
ProCarManuals.com

Scheduled Maintenance Services Schedule I - - ~~~~
Follow Schedule I if your car is MAINLY driven under one or more of the following conditions:
When most trips are less than 4 miles (6 kilometers).
When most trips are less than 10 miles (16 kilometers) and outside temperatures remain below freezing.
When most trips include extended idling and/or frequent low-speed operation as in stop-and-go traffic.
Towing a trailer.*?
When operating in dusty areas.
Schedule I should also be followed if the car is used for delivery service, police, taxi or other commercial applications.
288
ProCarManuals.com

TO BE SERVICED
(See Explanation of
Scheduled Maintenance
Services Following
Schedules
I and 11)
Item No. ~~ ~
~ __
6. Transaxle Service
7. Spark Plug
Replacement”
X. Spark Plug
Wire Inspection*+
9. Supercharger Oil Check
(3.8L Code 1 engine only)
10. Air Cleaner Filter
Replacement*’t
11. Fuel Tank, Cap &
Lines Inspection
WHEN TO PERFORM
Miles (kilometers) or
IS 18 21 24 27 30 33 36 39 42 45 48
Months, Whichever
MILES (000)
Occurs First
See Explanation of Scheduled
Maintenance Service
Following Schedules
I and 11
Every 30 000 mi
(SO 000 km)
tttt
See Explanation of Schedulcd
Maintenance Scrvice
Following Schedules
1 and I1
Every 30 000 mi
(SO 000 km) IIII
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
I
289
ProCarManuals.com

Scheduled Maintenance Services Schedule I1
I Follow Schedule I1 ONLY if none of the driving conditions specified in Schedule I apply.
TO BE SERVICED
(See Explanation of
Scheduled Maintenance
Services Following
Schedules I and 11)
Item No.
1. Engine Oil Change*
Oil Filter Change*
2. Chassis Lubrication
3. Tire
& Wheel Inspection & Rotation
4. Engine Accessory Drive Belt(s) Inspection*
5. Cooling System Service*
6. Transaxle Service
7. Spark Plug Replacement*
WHEN TO PERFORM
Miles (kilometers) or
Months, Whichever
Occurs First
MILES (000)
KILOMETERS (000)
I I 12.5 I 25
Every
7 500 mi. (12 500 km) or 12 mos. PIo
At first and then every other oil change
Every
7 500 mi. ( 12 500 km) or 12 mos.
At 7 500 mi. ( 12 500 km) and then every
15 000 mi. (25 000 km) or as necessary
Every
30 000 mi. (50 000 km) or 24 mos.
See Explanation of Scheduled Maintenance
Services Following Schedules I and I1
Every
30 000 mi. (50 000 km) 37.5
50 62.5
0 0 0
0 0
0 0 0
0 0
0
0
0
290
ProCarManuals.com

TO BE SERVICED
(See Explanation of
Scheduled Maintenance
Services Following
Schedules
I and 11)
Item No.
8. Spark Plug Wire Inspection*?
9. Supercharger Oil Check
(3.8L Code I engine only)
10. Air Cleaner Filter Replacement"
1 I. Fuel Tank. Cap & Lines Inspection**
WHEN TO PERFORM
Miles (kilometers) or
Months, Whichever
Occurs First
I MILES (000)
22.5 45 37.5 30
KILOMETERS (000)
12.5 I 25 I 37.5 I SO I 62.5 I 75 ~~
Every 30 000 mi. (SO 000 km) e
Every 30 000 mi. (50 000 km) or 36 months I
See Explanation of Scheduled Maintenance
Services Following Schedules
I and I1
Every 30 000 mi. (SO 000 km) e
0
I
The services shown in this schedule up to 45 000 miles (75 000 km) should be performed after 45 000 miles at the same
intervals.
I
291
ProCarManuals.com

Explanation of Scheduled Maintenance
Services
Following are explanations of the services listed in
Schedule I and Schedule 11.
The proper fluids and lubricants to use are listed
in
Section D. Make sure whoever services your vehicle
uses these. All parts should be replaced and all
necessary repairs done before you or anyone else drives
the vehicle.
NOTE: To determine your engine’s displacement and
code, see “Engine Identification”
in the Index.
1. Engine Oil and Filter Change* -- Always use SH
or SG Energy Conserving I1 oils of proper viscosity.
The
“SH” or “SG” designation may be shown alone
or
in combination with others, such as “SH/CD” or
“SH,
SG, CD,” “SG/CD,” etc. To determine the
preferred viscosity for your vehicle’s engine (e.g., SAE
5W-30 or SAE low-30), see “Engine Oil” in
the Index.
If your vehicle has an Engine Oil Life Monitor, the
monitor will show you when to change the oil. See
“Engine Oil Life Monitor”
in the Index. 2.
Chassis Lubrication -- Lubricate
the transaxle shift
linkage, parking brake cable guides, underbody
contact points and linkage. If your vehicle is
equipped
with grease fittings, lubricate the
suspension and steering linkage.
3. Tire and Wheel Rotation and Inspection -- For
proper wear and maximum tire life, rotate your tires
following the instructions
in this manual. See “Tires,
Inspection
& Rotation” in the Index. Check the tires
for uneven wear or damage. If you see irregular or
premature wear, check the wheel alignment. Check
for damaged wheels also.
4. Engine Accessory Drive Belt(s) Inspection --
Inspect the belt(s) for cracks, fraying, wear and
proper tension. Replace as needed.
5. Cooling System Service* -- Drain, flush and refill
the system
with new or approved recycled coolant
conforming to GM Specification 1825M. Keep
coolant at the proper mixture as specified. See
“Coolant”
in the Index. This provides proper freeze
protection, corrosion inhibitor level and engine
operating temperature.
292
ProCarManuals.com

Inspect hoses and replace if they are cracked, swollen
or deteriorated. Tighten screw-type hose clamps.
Clean the outside of the radiator and air conditioning
condenser. Wash the pressure cap and neck.
To help ensure proper operation, we recommend a
pressure test of both the cooling system and the
pressure cap.
6.
Transaxle Service -- Change both the fluid and filter
every
15,000 miles (25 000 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.
0 When doing frequent trailer towing. (With some
models, you shouldn’t ever tow a trailer. See
“Towing a Trailer”
in the Index.)
0 Uses such as found in taxi, police car or delivery
service.
If you do not use your vehicle under any of these
conditions, change both the fluid and filter every
100,000 miles ( 160 000 km).
7. Spark Plug Replacement* -- Replace spark plugs
with the proper type. See “Specifications Chart”
in
the Index.
8. Spark Plug Wire Inspection*-f -- Inspect for burns,
cracks or other damage. Check the boot
fit at the
distributor and at the spark plugs. Replace wires as
needed.
9. Supercharger Oil Check--Check oil every 30,000
(50 000km) or 36 months. Check oil level only on
cold engine. Add the proper synthetic oil. See
“Recommended Fluids and Lubricants” in the Index.
10. Air Cleaner Filter Replacement* -- Replace every
30,000 miles (50 000 km) or more often under dusty
conditions. Ask your dealer for the proper
replacement intervals for your driving conditions.
1 1. Fuel Tank, Cap and Lines Inspection*? -- Inspect
fuel tank, cap and lines (including fuel rails and
injection assembly) for damage or leaks. Inspect fuel
cap gasket for an even filler neck imprint or any
damage. Replace parts as needed. Periodic
replacement
of the fuel filter is not required.
* An Emission Control Service.
-f The US. Environmental Protection Agency or the California Air Resources Board 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 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 Record”.
293
ProCarManuals.com

Section B: Owner Checks and
Services
Listed below are owner checks and services which
should be performed at the intervals specified to help
ensure
the safety, dependability and emission control
performance of your vehicle.
Be sure any necessary repairs are completed at once.
Whenever any fluids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown in
Section
D.
At Each Fuel Fill (It is important for you or
a service station attendant to perform these
underhood checks at each fuel
fill.)
Engine Oil Level
Engine Coolant
Level
Washer Fluid
Level
WHAT TO DO
Check the engine oil level and add the
proper oil
if necessary. See “Engine
Oil” in the Index for further details.
Check the engine coolant level
in the
coolant recovery tank and add the
proper coolant mix
if necessary. See
“Coolant”
in the Index for further
details.
Check the windshield washer fluid
level
in the windshield washer tank and
add the proper fluid
if necessary. See
“Windshield Washer Fluid”
in the
Index for further details.
294
ProCarManuals.com