1994 BUICK CENTURY engine

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 fr\
eezing.
0 When most trips include extended idling and/or frequent low-spee\
d operation as in stop-and-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 applications. \
TO BE SERVICED
(See Explanation of
Scheduled Maintenance Miles (kilometers) or
Services Following Months, Whichever
Schedules I and 11) Occurs First KILOMETERS (000)
WHEN TO PERFORM MILES (000)
3
Item No.
Every30oOmi.(50@)km)or months 0 0 0 0 0 0 0 0 0 0 1. Engine oil & Filter Change
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
3. Tire & Wheel Rotation &
Every other oil change 0 0 0 0 0 0 0 0 2. Chassis Lubrication
every 15 ooo mi. (25 ooo km)
At 6 OOO mi. (10 000 km) and
or as necessary
4. Engine Accessory Drive
5. Cooling System Service"
Inspection
0 0 0
Belt(s)
Inspection* Every 30 OOO mi.
(50 000 km) or 24 months. 0
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TO BE SERVICED
(See Explanation of
Scheduled Maintenance Services Following
Schedules
I and 11)
Item No.
I
6. Transaxle Service
I
7. Spark Plug
Replacement*
3 100 Engine
8. Spark Plug Wire
I
10. Air Cleaner Filter
Replacement*
I
1 1. Fuel Tank, Cap & Lines
Inspection*?-
55 60 65 70 75 80
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.
-f The U.S. 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”.
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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 Rotation & Inspection
4. Engine Accessory Drive Belt(s) Inspection*
5. Cooling System Service*
MILES (000)
WHEN TO PERFORM
Miles (kilometers) or
Months, Whichever
Occurs First
or as necessary
Every
30 000 mi. (50 OOO km) or 24 mos.
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TO BE SERVICED
(See Explanation of
Scheduled Maintenance Services Following Schedules I and
11)
Item No.
I
6. Transaxle Service
7. Spark Plug
Replacement*
I 8. Spark Plug Wire Inspection*?
I
9. EGR System Inspection (2.2 L L4 Code 4
engine only)*?
I
10. Air Cleaner Filter Replacement”
I 1 1. Fuel Tank, Cap & Lines Inspection*?
WHEN TO PERFORM
Miles (kilometers) or
Months, Whichever Occurs First
I MILES (000) I .,
I KILOMETERS (000)
See Explanation of Scheduled Maintenance
Services Following Schedules
I and I1
Every
100,000 mi. ( 166 000 km)
Every
30 000 mi. (50 000 km)
See Explanation of Scheduled Maintenance
Services Following Schedules I and I1
Every
30 000 mi. (50 000 km)
50 75 62.5
a
a
a
a
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.
* An Emission Control Service.
? The U.S. 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”.
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Explanation of Scheduled Maintenance
Services
Below 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 10W-30), see “Engine Oil” 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 and boil
protection, corrosion inhibitor level and maintain
proper engine operating temperature.
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.
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6. ’Ikande Service -- Change both the fluid and filter
every 15,000 miles
(25 0oO 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.
Uses such as found in taxi, police car or delivery
service.
9. Exhaust Gas Recirculation (EGR) System
Inspection
(2.2 L Code 4 engine only) *? ---
Conduct the EGR system service as described in the
service manual.
To purchase a service manual, see
“Service Publications” in the Index.
10. Air Cleaner Filter Replacement* -- Replace every
30,000 miles (50 0o0 km) or more often under dusty
conditions. Ask your dealer for the proper
replacement intervals for your driving conditions.
11.
Fuel Tank, Cap and Lines Inspection*? -- Inspect
fuel
tank, cap and lines 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.
If you
do not use your vehicle under any of these
conditions, change both the fluid and filter every 100,OOO miles (160 OOO 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 bums,
cracks or other damage. Check the boot fit at the
distributor and at the spark plugs. Replace wires as
needed.
* An Emission Control Service.
The
U.S. Environmental Protection Agency or the California Air Resources Board has determined that the fail\
ure 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”.
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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.)
WHAT TO DO
~
Engine Oil Level
Engine Coolant Level
Windshield
Washer Fluid Level 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 and add
the propexcoolant 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.
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At Least Once a Month
WHAT TO DO
Check tire inflation. Make sure they are
inflated
to the pressures specified on the
Tire-Loading Information label located
on the rear edge of the driver’s door. See
“Tires”
in the Index for further details.
Cassette Deck Clean
cassette deck. Cleaning should
be done every
15 hours of tape play. See
“Audio Systems”
in the Index for
further details.
At Least Once a Year
CHECK OR
SERVICE
Key Lock
Cylinders
L
Body Lubrication
WHAT TO DO
Lubricate the key lock cylinders with
the lubricant specified in Section D.
Lubricate all body door hinges. Also
lubricate all hinges and latches,
including those for the hood, rear
compartment, glove box door, console
door and any folding seat hardware.
Section
D tells you what to use.
CHECK OR
SERVICE
Starter Switch
WHAT TO DO
CAUTION: When you are doing this
check, the
vehicle could move
suddenly. If it does, you or others
could
be injured. Follow the steps
below.
1. Before you start, be sure you have
enough room around the vehicle.
2. Firmly apply both the parking brake
(see “Parking Brake”
in the index if
necessary) and the regular brake.
NOTE: Do
not use the accelerator
pedal, and be ready
to turn off the
engine immediately
if it starts.
3. Try to start the engine in each gear.
The starter should work
only in “P”
(Park) or
“N” (Neutral). If the starter
works
in any other position, your
vehicle needs service.
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