1993 BUICK LESABRE heater

0 -' e
A! ek-bic fan under the kod-can start up even
when' the endne is not runniiig and can Injure
yoG. Keep hands, clothing and tools away from
any underhood electric fan.
I
If the coolant inside the coolant recovery tank is boiling,
don't do anything else until it cools down.
I-
rs-
L
I
P
The coolant level should be at or above "FULL COLD.''
If it isn't, you may have a leak in the radiator hoses,
heater hoses, radiator, water
pump or somewhere else in
the cooling system,
I
/A CAUTION: 0
Heater and radiator hoses, and other engine
parts, can be very
hot. Don't touch them. If you p
do, you can be burned.
Don't run the engine if there is a leak.
If you run
the engine,
it could lose all coolant. That could
cause an engine fire, and you could be burned.
Get any leak fixed before you drive the vehicle.
I
Engine damage from running your engine
without coolant isn't covered by your warranty.
If there seems to be no leak, check to see if the electric
engine fans are running.
If the engine is overheating,
both fans
should be running. If they aren't, your vehicle
needs service.

How to Add Coolant to the Coolant
Recovery Tank
If you haven’t found a problem yet, but the coolant level
isn’t at or above
“FULL COLD,” add a 50/50 mixture of
clean water (preferably distilled) and
a proper
antifreeze at the coolant recovery tank. (See “Engine
Coolant”
in the Index for more information about the
proper coolant mix.)
‘A CAUTION: Q
Adding only plain water to your cooling system
can be dangerous. Plain water,
or some other
liquid like alcohol, can boil before the proper
coolant
mix will. Your vbhicle’s coolant warning
system
is set for the properecoolant mix. With
plain water or the’wrong mix, your engine could
get too hot
but you douldn’t get the overheat
warning.
Your engine could catch fire and you or
others could be burned. Use a 50/50 mix of clean
water and
a proper antifreeze.”
I NOTICE 1
I fr ze an :rack In cold weather, water c
engine, radiator, heater core and other parts. Us€
the recommended coolant. I
211

SAE low-30
As shown in the viscosity chart, SAE low-30 is best
for your vehicle. However, you can use SAE 5W-30
if
it’s going to be colder than 60 F ( 16 C) before
your next oil change. When it’s very cold, below
0 F (- 1 8 C), you should use SAE 5W-30.
These numbers on an oil container show its viscosity, or
thickness,
Do not use other viscosity oils such as SAE
1OW-40 or SAE 20W-50.
Energy Conserving I1
Oils with these words on the container will help
you
save fuel.
This doughnut-shaped logo (symbol) is used on most oil
containers to help
you select the correct oil.
You should look for this on the oil container, and use
only those oils that display the logo.
GM Goodwrench@
oil (in Canada, GM Engine Oil)
meets all the requirements for your vehicle.
Engine Oil Additives: Don’t add anything to your oil.
Your Buick dealer is ready to advise if you think
something should be added.
When to Change Engine Oil: See if any one of these
is true for you:
Then go
to the front of the vehicle and release the
secondary hood release. Lift the hood.
Most trips are less than 4 miles (6 km).
0 It’s below freezing outside and most trips are less
than
10 miles ( 16 km).
0 The engine is at low speed most of the time (as in
0 You tow a trailer often.
0 Most trips are through dusty places.
If any one of these is true for your vehicle, then you
need to change your oil and filter every 3,000 miles
(5 000 km) or 3 months -- whichever comes first.
(See “Change Oil Soon” in the Index.)
If none of them is true, change the oil every
7,500 miles
(12 500 km) or 12 months -- whichever comes first.
Change the filter at the first oil change and at every
other oil change after that. (See “Change Oil Soon”
in the Index.)
Engine Block Heater: An engine block heater can be a
big help if you have to park outside in very cold
weather,
0 F (- 18 C) or colder. If your vehicle has this
option,
see “Engine Block Heater” in the Index.
door-to-door delivery, or
in stop-and-go traffic).
239

parts. You can also use a recycled coolant conforming to
GM Specification 1825-M with a complete coolant flush
and refill. Use GM Engine Coolant Supplement (sealer)
with any complete coolant change.
If you use these, you
don’t need
to add anything else.
I k!, CAUTION:
Adding only plain water to your cooling system
can be dangerous. Plain water,
or some other
liquid like alcohol, can boil before the proper
coolant mix will. Your vehicle’s coolant warning
system
is set for the proper coolant mix. With
plain water or the wrong mix, your engine could
get too
hot but you wouldn’t get the overheat
warning. Your engine could catch fire
and you or
others could be burned.
Use a 5050 mix of clean
water and a proper antifreeze.
I
I NO IC i:
IT you use an Improper coolant mix, your engine
could overheat and be badly damaged. The
repair cost wouldn’t be covered
by your
warranty.
Too much water in the mix can treeze
and crack the engine, radiator, heater core and other
parts.
Adding Coolant

Electric Outside Mirror Control .................... 100
Electrical Equipment. Adding
.................. 128. 269
Emergencies. Braking
............................ 163
Emergencies on the Road
.......................... 195
Emergencies. Steering in
......... ; ................ 164
Emergency Starting. Dead Battery
................... 198
Emergency Wrecker Towing
....................... 203
Engine Energy Conserving
Oil ............................ 237
Block Heater
.............................. 72. 239
Coolant
................................. 21 1. 243
Coolant Temperature Warning Light
.............. 110
Exhaust
...................................... 81
Identification
................................. 269
Oil
......................................... 236
Oil Additives
................................. 239
Oil Life Monitor
.............................. 114
Oil Pressure Warning Light
..................... 112
Oil. When to Change
...................... 239. 277
Overheating
.................................. 208
Starting
...................................... 70
Warning Light. Need for Service
................. 111
Ethanol in Gasoline
.............................. 231
Expectant Mothers. Use of Safety Belts
............... 37
Explanation of Scheduled Services
.................. 286
Expressway Driving
.............................. 176
Extender. Safety Belt
.............................. 55
Exterior Appearance ............................. 265 Fasteners.
Replacement
.......................... 230
Features and Controls
............................. 57
Fetus. Risk to
.. From Safety Belt Use ................ 37
Filling Your Fuel Tank
............................ 233
Filter. Oil
...................................... 275
Finish Care
..................................... 266
Finish Damage
.................................. 267
First Gear. When to Use
............................ 75
Flat Tire
....................................... 216
Flooded Engine. Starting a
.......................... 70
Fluid
Capacities
................................... 275
Brake
....................................... 248
Power Steering
........... ; ................... 246
Transaxle/Transmission
........................ 241
Windshield Washer
............................ 247
Fluids and Lubricants Recommended
................ 293
FM Stereo Radio Reception
........................ 127
Fog. Driving
in .................................. 173
Francais. Guide En
................................. 2
Freedom Battery
................................. 249
Freeway Driving
................................ 176
French LanguageManual
........................... 2
Front Brake Disc Wear Indicators
................... 162
Front Towing Hook-Ups
.......................... 206
Fuel
.......................................... 231
Fuel Gage
...................................... 106
Fuel Tank. Filling Your
........................... 233
Fuses and Circuit Breakers
........................ 270
Fuseusage ..................................... 271
Foreign Operation
............................... 232
308