1994 OLDSMOBILE SILHOUETTE maintenance

Muintenunce Schedule
234
Schedule I
Follow Schedule I if your vehicle is
MAINLY driven under one or more of
the following conditions:
When most trips are less than 4 miles
When most trips are less than 10
(6
ltm)
.
miles (16 ltrn) and outside
temperatures remain below freezing.
When most trips include extended
idling and/or frequent low-speed
operation, as in stop-and-go traffic.
When towing a trailer.
When operating in dusty areas.
Schedule I should also be followed if
the vehicle is used for delivery service,
police, taxi
or other commercial
applications.
::: = An Emission Control Service.
j- = The U.S. Emiyonmental Protection Agency
or the California Air Resources Board has
determined that the failure
to pelform 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
pelformed at the indicated intervals and the
maintenance be recorded in “Section
E:
Maintenance Record.”
ITEM TO BE SERVICED WHEN TO PERFORM
No* See Explanation of Scheduled Maintenance Miles (Kilometers) or Months
Services
following Schedules I and 11. (whichever occurs firsl).
1 Engine Oil Change & Oil Filter Change* Every 3,000 Miles (5 000 km) or 3 Montl~s..
2 Chassis Lubrication Every 3,000 Miles (5 000 lm) or 12 Months.
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Maintenance Scheduk
Schedule I1
Follow Schedule I1 ONLY if none of
* = An Emission Control Service.
t = 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.”
ITEM TO BE SERVICED
No’ See Explanation of Scheduled Maintenance
Services
following Schedules I and 11.
WHEN TO PERFORM
Miles (kilometers) or Months
(whichever occurs first). 1
I 2 I Chassis Lubrication 1 Evew 7,500 Miles (12 500 km) or 12 Months. 11
I 4 I Engine Accessorv Drive GDection I Everv 60.000 Miles (100 000 la) or 60 Months. 11
236
I I
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Maintenance Schedule
238
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.
ITEM
NO. SERVICE
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,”
“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
suspension and steering linkage.
Lubricate the transaxle shift linkage,
and parking brake cable guides,
underbody contact points and
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 E.
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.
Engine Accessory Drive Inspection
- Inspect the drive belt for cracks,
fraying, wear and proper tension.
Replace as needed.
I
Cooling System Servicee - Drain,
flush and refill the system with new
or approved recycled coolant
conforming to GM Specification
I
1825M. Keep coolant at the proper 1
mixture as specified. See Coolant in
the
Index. This provides proper
freeze and boil protection, corrosion
I
inhibitor level and maintains 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 tht
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. Transaxle Service - Change both
the fluid and filter every
15,000 miles
(25 000 ltm) 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
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
(166 000 ltm) .
7. Spark Plug Replacement::' -
Replace spark plugs with the proper
type. See
Replacement Parts in the
Index.
8. Spark Plug Wire Inspection''-
Inspect for burns, cracks or other
damage. Check the boot fit at the
distributor or coils and at the spark
plugs. Replace wires
as needed.
9. Exhaust Gas Recirculation (EGR)
System 1nspection':t
- Conduct
the
EGR system service as described
in the service manual.
To purchase a
service manual, see
Service
Publications
in the Index.
IO. Air Cleaner Filter Replacement+-
Replace every 30,000 miles
(50 000 ltm) or more often under
dusty conditions.
Ask your dealer
for the proper replacement intervals
for your driving conditions.
11. Air Cleaner Inspection''? - Inspect
all hoses and ducts for proper
hookup. Make sure the valve works
properly.
1nspection';:t - 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.
12. Fuel Tank, Cap and Lines
13. Engine Timing and Distributor
Check
(3100 Code D engine
only)'xt
- Adjust the timing to the
underhood label specifications.
Inspect the inside and outside
of the
distributor cap and rotor for cracks,
carbon tracking and corrosion.
Clean or replace as needed.
NOTE: To determine your engine's
displacement and code, see
Engine
Identification
in the Index.
': = An Enzission Control Service.
t = The U.S. Environmental Protection Agency
or the California Air Resources Boa1.d has
determined that the failure
to pelform this
maintenance item will
not nullify the
emission warranty
or limit recall liability
prior
to fhe completion of ~~ehicle useful life.
General
Motors: however, urges that all
recornmended maintenance services be
performed at the indicated intervals and the
maintenance be recorded
in "Section E:
Maintenance Record."
239
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Maintenance Schedule
I At Least Once a Year (CONT.)
242
~ ~~
CHECK
Parking Bralte
and Automatic
Transaxle
P (Park)
Mechanism Check
Underbody Flushing
WHAT TO DO
CAUTION: When you are doing this check, your vehicle could begin to move. You or others
could be injured and property could be damaged. Make sure there is room in front
of your
vehicle in case it begins to
roll. Be ready to apply the regular brake at once should the vehicle
begin to move.
Park on a fairly steep hill, with the vehicle facing downhill. Keeping your foot on the regular
brake, set the parking brake.
To check the parking brake: With the engine running and transaxle in N (Neutral), slowly
remove foot pressure from the regular brake pedal.
Do this until the vehicle is held by the
parking brake only.
To check the P (Park) mechanism’s holding ability: Shift to P (Park). Then release all brakes.
At least every spring, use plain water to flush any corrosive materials from the underbody. Take
care to clean thoroughly any areas where mud and other debris can collect.
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Section C: Periodic Maintenance Inspections fall). You should let your GM dealer’s service department or
other qualified service center do these jobs. Make sure any
Listed below are inspections and services which should be necessary repairs are completed at once.
performed at least twice a year (for instance, each spring and
Restraint Systems
Steering, Suspension
and Front-Wheel-
Drive Axle Boot and
Seal Inspection
Exhaust System
Inspection
Throttle Linkage
Inspection
Brake System Inspection
~~ ~
WHAT SHOULD BE DONE
~ ~~~
Now and then, make sure all your belts, buckles, latch plates, retractors, anchorages and
reminder systems are working properly. Look for any loose parts or damage.
If you see anything
that might keep
a restraint system from doing its job, have it repaired.
Inspect the front and rear suspension
and steering system for damaged, loose or missing parts,
signs of wear, or lack of lubrication. Inspect the power steering lines and hoses for proper
hookup, binding, leaks, cracks, chafing, etc. Clean and then inspect the drive axle boot seals for
damage, tears or leakage. Replace seals if necessary.
Inspect the complete exhaust system. Inspect the body near the exhaust system. Look for broken,
damaged, missing or out-of-position parts as well
as open seams, holes, loose connections, or
other conditions which could cause a heat build-up in the floor pan or could let exhaust fumes
into the vehicle. See
Engine Exhaust in the Index.
Inspect the throttle linkage for interference or binding, and for damaged or missing parts.
Replace parts as needed.
Inspect the complete system. Inspect brake lines and hoses for proper hook-up, binding, leaks,
cracks, chafing, etc. Inspect disc brake pads for wear and rotors for surface condition. Also inspect
drum brake linings for wear and cracks. Inspect other brake parts, including drums, wheel
cylinders, calipers, parking brake, etc. Check parking brake adjustment.
You may need to have
your brakes inspected more often
if your driving habits or conditions result in frequent braking.
NOTE:
A low brake fluid level can indicate worn disc brake pads which may need to be serviced.
Also, if the brake system warning light stays on or comes on, something may be wrong with the
brake system. See the
Index under Brake System Warning Light. If your anti-lock brake system
warning light stays on or comes on, something may be wrong with the anti-lock brake system.
See the
Index under Anti-Lock Brake System Wawing Light.
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Maintenance Schedule
244
Section D: Recommended Fluids and Lubricants
NOTE: Fluids and lubricants identified below by name, part number or specification may be obtained from your GM
dealer.
USAGE FLUID/LUBRICANT
Engine Oil API service
SH or SG Energy Conserving I1
oils of the proper viscosity. The “SH”or “SG” designation
may be shown alone or in combination with others, such as “SH/CD,” “SH,SG,CD,” “SG/CD,”\

etc. To determine the preferred viscosity for your vehicle’s engine, see
Engine OiZ in the Index.
Engine Coolant
50/50 mixture of water (preferably distilled) and good quality ethylene glycol base antifreeze
(GM Part No. 1052753 or equivalent) conforming
to GM Specification 1825M or approved
recycled coolant conforming to GM Specification 1825M.
Hydraulic Brake Svstem
I Delco Supreme 1 lo Brake Fluid (GM Part No. 1052535 or equivalent DOT-3 brake fluid).
Chassis lubricant (GM Part
No. 1052497 or equivalent) or lubricant meeting requirements of
NLGI Grade 2, Category LB or GC-LB. Guides
Power Steering
System I
I GM Hydraulic Power Steering Fluid (GM Part No. 1052884 or equivalent)
Automatic Transaxle DEXRONo-I11 or DEXRONo-IIE Automatic Transmission Fluid.
ICey oil or silicone lubricant (GM Part No. 1052276 or 1052277).
Lubricate with Multi-Purpose Lubricant (GM Part No.
12345120), synthetic SAE 5W-30 engine
Automatic Transaxle
Shift Linkage
Engine oil.
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Muintenunce Schedule
Section E: Maintenance Record Performed column, insert the numbers from the Schedule I or
Schedule I1 maintenance charts which correspond to the
After the scheduled services are performed, record the date, maintenance performed. Also, you should retain all
odometer reading and who performed the service in the
maintenance receipts. Your owner information portfolio is a
columns indicated. When completing the Maintenance
convenient place
to store them.
I 1 READING
ODOMETER SERVICED BY MAINTENANCE PERFORMED
246
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