1993 BUICK LESABRE Owners Manual

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.
8.
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.
0 When doing frequent trailer towing.
0 Uses such as found in taxi, police car or delivery
service.
9.
If you do not use your vehicle under any of these
conditions, change both the fluid and filter every
100,000 miles
(140 000 km).
Spark Plug Replacement* -- Replace spark plugs
with the proper type. See "Specifications Chart" in
the Index.
Spark Plug Wire Inspection*? -- Inspect for
burns, cracks or other damage. Check the boot fit at
the distributor 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,
if equipped) 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.
-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 vehicle
useful life. General Motors, however, urges that all recommended maintenance services be perlormed 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.)
CHECK OR
SERVICE
Engine Oil
Level
Engine Coolant
Level
Windshield
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.
moo

At Least Once a Month
1 CHECKOR SERVICE
I WHAT TO DO
~ ~~~
Tire Inflation 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.
At Least Once a Year
CHECK OR
SERVICE
Key Lock
Cylinders
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, glove
box door and console door. Section
D tells you what to use.
CHECK OR
SERVICE
Starter Switch
L
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.

CHECK OR
SERVICE
Brake-
Transmission Shift Interlock
BTSI
Automatic
Transmission)
WHAT TO DO
CAUTION: When you are doing
this check, the vehicle could
I
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. It
should be parked on a level surface.
2. Firmly apply the parking brake (see
“Parking Brake”
in the Index if
necessary).
NOTE: Be ready to apply the regular
brake immediately
if the vehicle
begins
to move.
3. With the engine off, turn the key to
the
“RUN” position, but don’t start
the engine. Without applying the
regular brake, try to move the shift
lever out of
“P’ (Park) with normal
effort. If the shift lever moves out of
“P’ (Park), your vehicle’s BTSI
needs service.
CHECK OR
I SERVICE I WHAT TO DO
Steering While parked, and with the parking
Column Lock brake set, try to
turn the key to
“LOCK” in each shift lever position.
The key should turn to “LOCK”
only
when the shift lever is in “P’
(Park).
The key should come out only in
“LOCK.”
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CHECK OR
SERVICE
Parking Brake
and Automatic
Transmission
“P” (Park)
Mechanism
Check
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
-
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
transmission in
“N’ (Neutral),
slowly remove foot pressure from
the regular brake pedal. Do this
until the vehicle is held by the
parking brake only.
mechanism’s holding ability: Shift
to “P’ (Park). Then release all
brakes.
To check the “P” (Park)
CHECK OR
I SERVICE I WHAT TO DO
Underbody
Flushing 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.

Section C: Periodic Maintenance
Inspections
Listed below are inspections and services which should
be performed at least twice a year (for instance, each
spring and fall). You should let your
GM dealer’s
service department or other qualified service center do
these jobs. Make sure any necessary repairs are completed at once.
INSPECTION
OR SERVICE ______~
Steering,
Suspension and
Front-Wheel-
Drive
Axle
Boot and Seal
Inspection
Exhaust System Inspection
Throttle
Linkage
Inspection
WHAT SHOULD BE DONE
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.

INSPECTION OR SERVICE
Brake System
Inspection
WHAT SHOULD BE DONE
Inspect the complete system. Inspect
brake lines and hoses for proper hookup, binding, leaks, cracks,
chafing, etc. Inspect disc brake pads
for wear and rotors for surface
condition. Inspect other brake parts, including 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
“Brake System Warning Light” in
the Index. If your anti-lock brake
system warning light stays
on or
comes on, something may be wrong
with the anti-lock brake system. See
“Anti-Lock Brake System Warning
Light” in the Index.
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.
FLUID/LUBRICANT
GM Goodwrench Motor Oil or
equivalent for API service SG
Energy Conserving I1 oils of the
proper viscosity. The
“SG’
designation may be shown alone
or
in combination with others,
such as “SG/CC,” “SG/CD,” or
“SF,SG,CC,” etc.
To determine the
preferred viscosity for your vehicle’s
engine, see “Engine Oil’’ in the
Index.
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.
293
-

USAGE FLUID/LUBRICANT
Hydraulic Brake
(GM Part No.
1052535) or
System Delco
Supreme 11
@ Brake Fluid
equivalent
DOT-3 brake fluid.
Parking Brake
Category LB or GC-LB (GM Part
requirements
of NLGI Grade 2,
Guides Chassis
lubricant meeting
No. 1052497 or equivalent).
Power Steering
Transmission Fluid (GM Part No.
Transaxle
DEXRON@ IIE Automatic Automatic
(GM Part No. 1052884) or
System GM Hydraulic Power Steering Fluid
equivalent.
1234588 1).
Key Lock Lubricate with Multi-Purpose
Cylinders Lubricant
(GM Part
No. 12345 120),
synthetic SAE 5W-30 engine oil or
silicone lubricant (GM Part
No.
1052276 or 1052277).
Automatic
Transaxle Shift Engine
oil.
Linkage
USAGE
Chassis
Lubrication
Windshield
Washer Solvent
Hood Latch
Assembly a. Pivots and
Spring
Anchor
b. Release
Pawl
Hood and Door
Hinges, Fuel
Door Hinge
Weatherstrips
FLUID/LUBRICANT
Chassis lubricant meeting
requirements
of NLGI Grade 2,
Category LB or GC-LB (GM Part
No. 1052497 or equivalent).
GM Optikleen@ Washer Solvent
(GM Part
No. 105 15 15) or
equivalent.
a. Engine oil.
b. Chassis lubricant meeting
requirements of NLGI Grade 2,
Category LB or GC-LB (GM Part
No. 1052497 or equivalent).
Engine oil or Lubriplate Lubricant
(GM Part
No. 1050109).
Dielectric Silicone Grease (GM Part
No. 12345579 or equivalent).
See “Specifications Chart” in the Index for
recommended replacement filters. valves and spark
plugs.
294