1993 BUICK SKYLARK fuel

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.
7. 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:
0 In heavy city traffic where the outside
temperature regularly reaches
90 F (32 C) or
higher.
0 In hilly or mountainous terrain.
When doing frequent trailer towing. (With some
models, you shouldn’t ever tow a trailer. See
“Towing a Trailer” in the Index.)
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).
8. Spark Plug Replacement* -- Replace spark plugs
with the proper type. See “Specifications Chart” in
the Index.
9. Spark Plug Wire Inspection (3.3L Code N engine
only)*?
-- Inspect for burns, cracks or other
damage. Check the boot fit at the coils and at the
spark plugs. Replace wires as needed.
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.
11. 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.
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 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 EMaintenance Record”.

Section €5: Owner Checks and
Services
I 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 anv fluids or lubricants are added to vour
At Each Fuel Fill
(It is important for you or a service station attendant
to perform these underhood checks at each fuel
fill.)
CHECK OR
I SERVICE I WHAT TO DO
Engine Oil Check the engine oil level and add
Level the proper oil if necessary. See
“Engine
Oil“ in the Index for further .r .I
vehicle, make sure they are the proper ones, as shown in details.
Section D. Engine Coolant Check the engine coolant level in the
Level surge tank and add the proper
coolant mix
if necessary. See
“Coolant” in the Index for further
details.
Windshield Check the windshield washer fluid
Washer Fluid level in the windshield washer tank
Level and add the proper fluid
if necessary.
See “Windshield Washer Fluid” in
the Index for further details.

Hood Latch
Assembly
. .
a.-Pivots and
Spwg Anchor
b. Release Pawl
Hood and Door
Hinges
a. Engine oil.
b. Chassis lubricant meeting
requirem’ents
‘of NLGI Grade 2,
Cakgory LB or GC-LB ‘(GM Part
No. 1,052447. or equivalent);
Engine ail or kubriplate Lubricant
(GM Part No. 1050109).
Fuel filler ’ Door Chassis lubricant meeting
Hinge and requirements
of NLGI Grade. 2,
Striker Plunger
Category LB or GC-LB (GM Part.
No. 1052497 or equivalent).
Weatherstrips Dielectric Silicone Grease
(GM Part
No. 12345579 or equivalent). I
See “Specifications Chart” in the Index for recommended
replacement filters, valves and
spark plugs.

Power Antenna
..................................... 134
Door Locks
................................... 65
Seat Controls
................................... 16
Steering
..................................... 154
Windows
..................................... 87
Pregnancy. Use
of Safety Belts During ................ 35
Pressure. Tire
................................... 242
Problems on the Road
............................ 185
Publications. Service
............................. 288
Publications Order Form .......................... 291
Push-Starting Your Car
........................... 188
Steering
Fluid
................................ 234
Proper Safety Belt Usage for Adults
.................. 28
Racing. Shifting When Your Engine is
............... 78
Radiator Overheating
............................. 197
Radio. Adding a Two-way
......................... 123
Radio Systems
.................................. 122
Rain. Driving in
................................. 161
Reaction Time
in Braking ......................... 149
Reading Lights
.................................. 10 1
RearBrakes .................................... 153
Rear Door Security Lock
........................... 69
Rear Safety Belt Comfort Guides
.................... 40
Rear Seatbacks. Folding
............................ 20
Rear Window Defogger ........................... 121 Reclining Front Seatbacks
.......................... 16
Recommended Fluids and Lubricants
................. 281
Recovery. Off-Road
.............................. 156
Recreational Vehicle Towing
....................... 179
Remote Fuel Door Release
.......................... 219
Remote Keyless Entry System
....................... 67
Remote Trunk Release
............................. 66
Remote Trunk Release Lockout
...................... 66
Replaceable Light Bulbs
.......................... 262
Replacing Brake System Parts
...................... 237
Replacing Safety Belts
............................. 60
Replacing Tires
................................. 244
Replacing Wheels
............................... 247
Restarting Your Car When It’s Moving
................ 78
Restraint. Child
.................................. 46
Restraint Systems. Checking Your
.................... 59
Restraints. Head .................................. 18
Reverse Gear Position
............................. 78
Ride Control System. Adjustable
..................... 86
“Riding” the Brakes
.............................. 149
Roads. Hill and Mountain
......................... 170
Rocking Your Vehicle
............................ 213
Rotation. Tire
................................... 243
Run (Ignition Key Position)
......................... 73
Running Your Engine While You’re Parked
............ 85
Reporting Safety Defects
.......................... 287
Roadsigns
..................................... 138
Running Lights. Daytime
.......................... 100

Fuel Mileage Chart
I
MILES PER GALLON
5
6
7
8
9
10
ll
12
13
14
15
16
17
18
19
20
21
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