1993 BUICK LESABRE engine coolant

To Check Coolant: When your engine is cold, the
coolant level should
be at “FULL COLD,’’ or a little
higher. When your engine is
warm, the level should be
up to “FULL HOT,” or a little higher.
To Add Coolant: If you need more coolant, add the
proper mix at the coolant recovery tank.
I
I
A CAUTION:
Turning the radiator pressure cap when the
engine and radiator are hot can
allow steam and
scaldlng
liquids to blow out and burn you badly.
With the coolant recovery tank, you will almost
never have
to add coolant at the radiator. Never
turn the radiator pressure cap -- even a little -
when the engine and radiator are hot.
Add coolant mix at the recovery tank, but be careful not
to spill
it.
A CAUTION: I
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
-..d
it will burn if the engine parts are hot
enough. Don’t spill coolant on a hot engine.
Radiator Pressure Cap
I Tour rar
I I.
cap IS a 13 PSI (105 kPa1
pressure-rype cap and must be tightly Insrawe
to prevent coolant loss and possible engine
damage from overheating. Be sure the arrows
o
I
the cap line up with
radiator filler neck. I
When you replace your radiator pressure cap, an AC@
cap is recommended.
245

Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow of coolant through the radiator until the coolant
reaches a preset temperature.
When
you replace your thermostat, an ACS thermostat
is recommended.
Power Steering Fluid
:i
How To Check Power Steering Fluid:
Unscrew the cap and wipe the dipstick with a clean rag.
Replace the cap and completely tighten it. Then remove
the cap again and look at the fluid level on the dipstick.
When the engine compartment is hot, the level
When the engine compartment is cool, the level
What to Add:
Refer to the Maintenance Schedule to determine what
kind
of fluid to use. See “Recommended Fluids and
Lubricants” in the Index.
should be
at the
“HOT” mark.
should be at the
“FULL COLD” mark.
When adding power steering fli or making a
complete fluid change, always use the proper
fluid. Failure
to use the proper fluid can cause
leaks and damage hoses and seals.

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.
1. Engine Oil and Filter Change* -- Always use SG
Energy Conserving I1 oils of 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 (e.g.,
SAE
5W-30 or SAE 10W-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 suspension and
steering linkage. Lubricate the transaxle shift linkage, and parking brake
cable guides, underbody
contact points and linkage.
3. Throttle Body Mounting Bolt Torque* -- Check
the torque of the mounting bolts and/or nuts.
4. 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.
5. Engine Accessory Drive Belt(s) Inspection --
Inspect the belt(s) for cracks, fraying, wear and
proper tension. Replace as needed.
6. 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.
* An Emission Control Service.
3‘ The U.S. Environmental Protection Agency has determined that the failure to perfonn this maintenance item will not nullify the emission warranty or limit recall liability prior to thecompletion 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”.
286

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

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
-

XI Engineoil ..................................
Power Steering Fluid .........................
Transaxle/Transmission Fluid ................ 24
Windshield Washer Fluid
.........................
Additives . Engine Oil ............................
Acc (Ignition Key Position) ......................... 69
Adding Brake Fluid
.................................. 248
Coolant
................................. 211. 243
Electrical Eauiument
...................... 128. 269
. 236
. 246
1. 277
. 247
I” . 239
Adjustment. Brake
............................... 163
Adult Safety Belt Usage
............................ 24
AirBag
......................................... 33
Aircleaner ..................................... 240
Air Conditioner
............................. 1 19. 125
Air Outlets
..................................... 11 8
Air System
................................. 1 19. 125
Alcohol. Driving Under the Influence
of .............. 155
Alcohol in Gasoline .............................. 231
Aluminum Wheels. Cleaning
....................... 266
AM Radio Reception
............................. 127
AM Stereo Radio Reception
....................... 128
Antenna
....................................... 142
Antifreeze
...................................... 243
@) Part 9 Index
Antilock Brake System ........................... 160
Anti-Theft Tips
................................... 66
Anti-Theft Feature. Delco Loc I1 .................... 139
Appearance Care
................................ 262
Armrest. Storage
................................ 104
Ashtrays ....................................... 102
Audio Systems
.................................. 127
Automatic Air Conditioning System
................. 119
Automatic Overdrive
.............................. 74
Automatic Transaxle
.............................. 73
Automatic Transaxle Fluid
..................... 24 1. 277
Automatic Transaxle Torque
Lock ................... 184
Antilock Braking System Warning Light
.............. 108
Appearance Care and Maintenance Materials .......... 268
Baby. Holding
a ................................. 42
Battery
........................................ 249
Battery Cables. Starting With
....................... 198
Battery Warning Light
............................ 115
Blizzard.
If You’re Caught in a ..................... 187
BloodAlcoholLevel
............................. 156
“Blowout. .. Tire ................................. 216
Boat. Towinga .................................. 189
305

Brake Adjustment
................................... 163
Fluid 248 .......................................
Lining Replacement. How to Drive After .......... 249
Master Cylinder
.............................. 248
Brake-Transaxle Shift Interlock
................... 73. 80
Brake System. Antilock Warning Light ............... 108
Brake System Warning Light
....................... 107
Brake Wear Indicators. Disc
....................... 162
Brakes. Antilock
................................ 160
Braking Emergencies
............................. 163
Braking if Your Engine Stops
...................... 160
Break-In. New Vehicle
............................. 68
Break-In Schedule. When Towing a Trailer
............ 189
Bulb Replacement. Headlamp
...................... 250
Bulb Replacement Taillamp
........................ 252
Bulbs. Halogen
.................................. 250
Bulbs.
Turn Signal ................................ 85
Parking ...................................... 76
PedalTravel
................................. 163
Brakes,Rear
.................................... 163
Braking 158 ........................................
Bulbchart ..................................... 274
Camper. Towing a
.............................. 189
...................................... Capacities 275
Cap. Radiator Pressure 245
Care,Appearance
................................ 262
I ............................ Carbon Monoxide in Exhaust ....................... 81
Cassette Tape Player Care
......................... 141
Cautions, Safety
.................................. 10
CB Radio, Adding a
.............................. 128
I
Cellular Telephone. Adding a ...................... 128
“Change Oil Soon” Light
.......................... 114
Change Oil. When to
............................. *239
Changing a Flat Tire
.............................. 216
Charge.Battery.. Warning Light
..................... 115 .
“Check Oil Level” Light .......................... 113
Engine Coolant
............................... 243
Engine Oil Level
.............................. 236
Power Steering Fluid
.......................... 246
Safety Belt Systems
............................ 55
Transaxle Fluid ............................... 241
Windshield Washer Fluid
.......................... 247
Chemical Paint Spotting
........................... 367
Children and Safety Belts
.......................... 41
Cleaner. Air
............... .................... 240
Aluminum Wheels
............................ 266
Inside Your Car
................................ 262
Outside Your Car
............................. 265
Top of the Instrument Panel ..................... 264
Underbody
of Your Car ........................ 267
Vinyl
or Leather .............................. 264
..................................... Chains. Tie 261
Checking BrakeFluid
.................................. 248
UndertheHood
................................. 234
.................................. Child Restraints 43
Cigarette Lighter
................................ 103
CircuitBreakers
................................. 270
City Driving 175
Cleaning ....................................
Fabric ...................................... 263
Glass
...................................... 265
PowerAntenna
............................... 142
Safety Belts 265 ..................................

Weather Strips ................................ 266
White Sidewall Tires
........................... 266
Windshield and Wiper Blades
.................... 265
Comfort Control System
.......................... 11 8
Clock. Setting the
..................... 130.132.134. 137
Closed-In Places. Don't Idle in
...................... 81
COinYourExhaust
............................... 81
Color of Road Signs
.............................. 146
Comfort Control
& Audio Systems .................. 11 8
Compact Disc Care .............................. 142
Compact Spare Tire
.............................. 227
Contents. Table of
................................. 9
Control of
a Vehicle .............................. 158
Control.
Loss of ................................. 168
Controls. Features and
....... .- .................... 57
Convex Outside Mirror
.......................... ;" 100
Convenience Net ................................. 101
Coolant. Engine ................................. 243
Coolant. Engine. Warning Light
.................... 110
Coolant. Safety Warnings About
.................... 208
Covers.
How to Remove Wheel ...................... 21 8
Cruise Control ................................... 89
Cruise Control. Changing Speed With
................. 92
Cruise Control. Turning
Off ......................... 94
Cruise Control. Using on Hills
....................... 94
Curves. Driving
on ............................... 163
Customer Assistance Information
................... 297
Customer Satisfaction Procedure
.................... 297
Courtesy Lights
.................................. 97
.............................
8
(Drive) Third Gear 75
Automatic Overdrive
........................... 74
Damage to Finish
................................ 267 Damage to Sheet Metal
.......................... .26
7.
Damagewarnings
................................ 11
Daytime Running Lights ........................... 98
Dead Battery. What to Do
......................... 198
Defensive Driving
............................... 154
Defogger.
Rear Window ...................... 124. 127
Defogging
................................. 123. 126
Defrost
.................................... 124. 126
Delco Sound Systems
............................ 127
Dimensions
.................................... 273
Disc Brake Wear Indicators
......................... 162
Disposal. Used Oil
............................... 240
Door Locks
...................................... 59
Downhill Parking
................................ 182
Downshifting
.................................... 75
Driving
AtNight
.................................... 169
Defensively
.................................. 154
Drunk
...................................... 155
In a Foreign Country
........................... 232
In Cities
..................................... 175
In Fog. Mist or Haze ........................... 173
InRain
..................................... 171
In Winter
.................................... 185
On a Long Trip
............................... 178
On Freeways
................................. 176
On Curves
................................... 163
On Hill and Mountain Roads
.................... 180
On Snow or Ice
............................... 186
Through Deep Standing Water
.................... 71
DrunkenDriving
................................ 155
Dual Automatic ComforTemp Climate Control
......... 119
307
.