1993 BUICK SKYLARK coolant temperature

BIL (Bi-level) Windshield Defrost
This
setting allows the outside air to flow through your
Buick in two ways. Cooler air is directed to the upper
portion of your body through the vent outlets. Slightly
warmer air
is directed through the heater ducts and
defroster outlets.
Vent
Using vent will allow outside air to flow through the
instrument panel outlets. Set the temperature knob as
desired.
Heater
On days when it’s cold outside, this setting sends heated
air through the heater ducts and
the windshield defroster
outlets. If you have the engine block heater, you can use
it in cold weather (+2OoF/-8 OC or lower) to heat your
vehicle’s passenger area quicker. The engine block
heater warms the engine coolant which
will ultimately
warm the passenger area more efficiently.
( See “Engine
Block Heater” in the Index.)
Blend
This setting divides the air flow equally between the
heater and the defroster outlets. This setting operates the defroster. Most
of the air comes
out near the windshield. Use defrost when you get fog or
ice on the windshield.
Rear Window Defogger (Option)
The lines you see on the
rear window warm
the
glass. Press the button to
start warming your
.window. Pressing the
button again will shut it off.
If you
turn the rear defogger on while driving at or
above
45 mph (72 km/h), it will stay on as long as that
speed is maintained.
You must press the button to shut
it
off.
121

To Add Coolant: If you need more coolant, add the
proper mix at the surge tank, but only when the engine is cool.
A CAUTION:
Turning the surge tank pressure cap when the
engine and radiator are hot can allow steam and
scalding liquids to blow out and burn you badly.
Never turn the surge tank pressure cap
-- even a
little
-- when the engine and radiator are hot.
I
I
1 A CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
and
it will burn if the engine parts are hot
enough. Don’t spill coolant
on a hot engine.
1
Surge Tank Pressure Cap
pressure-type cap and must be tightly installed
When you replace your surge tank pressure cap, a GM
cap is recommended.
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.
233

Explanation of Scheduled Maintenance equipped with grease fittings, lubricate the
Services suspension and steering linkage.
Below are explanations
of the services listed in $chediie ‘ ‘ 3. Throttle Body Mounting; Bolt Torque (3.3L Code . , I:
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.
NOTE:
To determine your engine’s displacement and
code, see “Engine 1dentific.ation” in the Index.
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.
2. Chassis Lubrication -- Lubricate the transaxle shift
linkage, parking brake cable guides, underbody
contact points and linkage. If your vehicle is
An Emission Control Service.
N engine only)* -- Che& the torque of the
mounting bolts and/or nuts.
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@) 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.
4. Tire and Wheel Rotation and Inspection -- For
The U.S. Environmental Protection Agency has determined that the failure to perform this maintenance item will not nullify the emission war\
ranty 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 i\
ntervals and the maintenance be recorded in “Section EMaintenance Record”.
274

Starting Your Car if the Battery is “Dead” .............. 188
Steam From Hot (Overheated) Engine ................ 197
Steering ........................................ 154
Steering in Emergencies ........................... 155
Steering Wheel, Tilt ............................... 88
Steering Without Power Assist ..................... 154
Stereo Sound Systems ............................ 122
Storage Console ................................. 106
Storing Your Vehicle ............................. 237
Stuck. If Your Ignition Key is ....................... 73
Stuck. IfYour Car Is ............................. 213
Subscribing to Buick Product Service Publications ...... 288
Surge Tank Pressure Cap .......................... 233
Symbols on Your Car .............................. 12
Table of Contents ................................. 9
Tachometer ..................................... 1 17
Tamper-Resistant Odometer ........................ 108
Tape Player Care ................................ 133
Temperature. Engine Coolant Warning Light .......... 112
Theft ............................................ 70
Thermostat ..................................... 233
Third Gear ...................................... 78
Tilt Steering Wheel ............................... 88
Time. Setting the ......................... 125.127. 129
Tire Balance .................................... 246
Tire Chains ..................................... 248
Tire. Flat ....................................... 204
Tire Inflation ................................... 242
Tire Inspection and Rotation ....................... 243
Tire Quality Grading ............................. 245
Tires .......................................... 241
Tires. When to Replace ........................... 244
Tires. White Sidewall Cleaning ..................... 254
Torn Safety Belts ................................. 60
Torque Lock (Automatic Transaxle) ................. 174
Towing Your Buick .............................. 193
Towing a Trailer ................................. 179
Trademarks. GM ................................ 216
Traffic Lights ................................... 143
Traffic Officer .................................. 144
Trailer Brakes ................................... 182
Trailer Towing .................................. 179
Transaxle/Transmission. Automatic ................... 77
Transaxle Fluid .................................. 227
Trip Odometer .................................. 108
Trunk Release. Remote ............................ 66
Turn Signal and Headlight Beam Lever ................ 88
Turn Signal “On” Chime ............................ 90
Twisted Safety Belts .. I ............................ 35
Two Children Wearing the Same Safety Belt ............ 58
Turn Signal and Lane Change Indicator ............... 89

...... a . c
Underbody Maintenance ......................... 255
Uniform Tire Quality Grading
...................... 245
Unleaded Gasoline
............................... 2 17
Uphill Parking
.................................. 173
Upholstery Care
................................. 249
Used Oil. How to Dispose
of ....................... 227
Used Replacement Wheels
......................... 248
Vehicle Damage Warnings
......................... 11
Vehicle Identification Number ...................... 257
Vehicle Storage
................................. 237
Vehicle Symbols
.................................. 12
Volts Gage
..................................... 116
Vinyl. Cleaning
................................. 251
Visor Vanity Mirror
.............................. 104
warnings Devices
.............................. 187
Warning. Hazard Flasher
.......................... 186
Warning Lights
Antilock Brake System
......................... 11 1
Battery
....................................... 116
Brakesystem
................................ 110
CheckOil
................................... 115
Engine Coolant Temperature
.................... 112
Engine Oil Pressure
............................ 114
Indicators and Gages on Instrument Panel
.......... 109
LowCoolant
................................. 113
Malfunction Indicator (Service Engine Soon)
....... 11 3
I
Warnings. Safety ................................. 10
Washer. Windshield
............................... 92
Wear Indicators. Disc Brake
....................... 152
Weather Strips
.................................. 254
Weight.of a Trailer
............................... 180
Wheel Alignment
................................ 246
Wheel Covers Removal
........................... 206
Wheel Replacement
.............................. 247
White Sidewall Tire Cleaning
...................... 254
Why Wear Safety Belts?
........................... 23
Windows. Power
................................. 87
Windshield
Cleaning
.................................... 252
Washer
..... : ................................ 92
Washer Fluid
.............................. 92. 235
Wipers
................................... 9252 1.
Winter Driving
.................................. 175
Working on Your Car
............................. 216
Worn Tires
..................................... 244
Wrecker Towing
................... ............. 193
Washing Your Vehicle
............................ 253
WheelNutTorque
............................... 211
Your Driving and the Road
....................... 137
Your Own Signals
............................... 144
Your Vehicle and the Environment
.................. 267