1993 CHEVROLET CORVETTE coolant temperature

Downloaded from www.Manualslib.com manuals search engine Comfort Controls & Audio Systems
Automutic Electrunic
Climate Cuntvul (C0nt.j
Use These Settings to Set Your Fan
Speed
V (Lqw.Ean): 'This. setting overrides.
the automatic fan speed. To decrease
fan speed, press the
V button and
hold until
you see the fan speed you
want.
AUTO # (Automatic Fan): when
you use this setting, the controller
chooses the fan speed based on the
input signals.
In the AUTO mode
during hot weather (after the vehicle
has not been running for a period of
time) the-fan speed will be
low when
the vehicle is initially
started. This
I42
initial low fan speed is used to purge
the vehicle of hot interior air. In the
AUTO 3f mode during cold weather,
the
fan speed will be delayed. in the
heat
mode until the engine coolant
reaches
an adequate temperature to
provide heat.
A (High .Fan) : This setting overrides
the automatic fan speed. To increase
fan speed, press the A button and
hold until you see the fan speed you
want. There is no €an blower delay.
Fan speeds wil1 range from 1 (lowest
setting)
to 10 (highest setting). When
any fan speed is selected, it will appear
on the digital screen briefly and the
ot~tside temperature will also appear.
Air Conditioning System
If a light above a button flashes when
you turn
on the ignition, it may indicate
an electrical problem with your air
conditioning system. The flashing will
continue for one minute, then go but. It
means you should have your system
checked
and serviced if needed.
It may
also mean the rekigerant level is
too low in your air conditioner system.
The. light will still flash after rebigerant
is added. This means your system will
not cool the air until it is reset.

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Comfort Controls & Audio Systems
Directional Controls (CONT.)
also controls the fan speed
-automaticallyy, unless the fan is
overridden
by the 7 or A button.
'YJJ(Heater): In this setting, all air
coming into the vehicle. is forced to the
floor. The fan blower motor will vary
in speed unless yowpress the Vur A
button. The in-car temperature will
adjust to the setting you choose. The
air conditioning compressor will not.
run in the manual heater mode.
If .your vehicle has an
engine block
heater
and you.use .it during cold
weather,
UoF (-18°C) or lower, your
heating system will .more quickly
provide heat became the engine coolant
is already warmed. See the
Index under
Engine Bluck Heater.
44
(Defrost): With this setting,
mast
of the air is forced. through the
windshield defroster vents. The
cornpressor
runs by using all the input
signals. The fan blower also .goes to a
fixed
high speed with no delay. After
start-up you can override the High fan
blower speed by pushing or AUTO.
DEFOG: Press the and (@'
buttons at the same time to operate the
defog mode. This directs warmed air
through the windshield defroster
vents,
and through the heater ducts.
OFF: Press to turn off the system.
Rear Window Defogger
(COUPE AND HARDTOP CONVERTlBLE)
a (Rear Window Defogger) :Press
this button to warm the defogger grid
on the rear window and
warm the
power mirrors. The indicator light will
glow while the rear window defogger is
operating.
If you have a convertible,
you. will have the 4 (Power Mirror
Defogger) button .on your climate
control system. This button
is for
heated mirrors only. The -rear window
defogger
will turn:off automatically after.
about
10 minutes. of use, You can also-
turn the defogger
off by turning off the
ignition
or by pressing the @ button
again.

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!
L
r
i
Engine Overheating
Y0.u will find an engine coolant
temperature gage. on. the instrument
cluster and a low coolant warning light
on the Drives In€orrnation Centkr.
Ifsteamis

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262
Rear Axle (CONT~)
What to Use:
To add lubricant when the level
use Me Lubricant (GM Part Na
12345977) or SAE BOW-90 GL-5
lubricant. To completely refill after
-draining, add four ounces (118 mQ af
Limited-Slip Dlfferential Lubricant
Additive (GM Part No. 1052358). Zmn
fill to the bottom of the filler plug hole
with Axle ‘Lubricant (GM Part No.
12345977) o,r SAE 8OW-90 GL-5 gear
lubricant.
Engine Coolant
e foUowing explains your cooling
sgstm and how to add coolant when it
is Im. If you have a problem with
e~@e overheating, see the Index under
Engine Ouerheating.
The proper coolant for your Corvette
* Give freezing protection down to
Give boiling protection up. to 262°F
Protect against rust and corrosion.
Help keep the proper engine
Let the warning lights work as they
-3m (-37°C).
(128°C) ~
temperature.
should.
What to Use:
Use a mixture of one-half clean wafer
(preferably distilled) and one-half
antifreeze that
meets “GM Specification
1825-M,” which won’t damage
aluminum parts. You can also use a
recycled coolant conforming to GM
Specification 1825-M with a complete
coolant
flush and refill. If you have the
LTl engine, use GM Engine Coolant
Supplement (sealer)
with any complete
coolant change.
If you use these, you
don’t need to add anything else.

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Adding Caalant-LT5 Enghe
(CONT,)
2. Add the coolant mix to the coolant
high fill reservoir until the level
reaches the
base of the res&voir filler
neck
3. With the pressure cap still removed,
run the engine until the upper
radiator
hose is hot. With the engine
at idle, add coolant
mix again, if
needed, to bring the level back up to
the reservoir filler neck base.
4. Put on the pressure cap. When it’s
tight, the arrows on the cap should
line up with the overflow tube on the
reservoir filler neck.
Coolant High Fill Reservoir
Pressure Cap
I
When you replace your coolant high fill
reservoir pressure cap, an AC@ cap is
recommended. Engine
coolant temperature
is
controlled by a thermostat in the engine
coolant
system. The thermostat sfops
the flow of coolant through the radiator
until the .coolant reaches a preset
temperature.
When you replace your thermostat, -an
AC* thermostat is recommended.

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I i.
P
Underbody Maintenance ............... 302
Warnings ............................... 289, 297
Weatherstrips
................................ 301
Windshield and Wiper Blades ...... 295
Cleaning Your C.onvertible Top ....... 297
Climate Control
................................ 136
Air Conditioner ...................... 136, 142
Automatic Electronic Climate Control
........................................ 140
Heater .................................... 137, 144
Ventilation ............................ 137, 145
Clock, Setting the ............................ 148
Clusters, Instrument Panel .............. 100
Compact Disc Player
(see
Audio Systems)
Compact Spare Tire .......................... 235
Concealed Headlights ......................... 90
Control of a Vehicle ........................... 171
Convertible Hardtop ........................ 128
Convertible
Top ............................... 124
Coolant ............. 216, 262, 263, 311, 317
Adding .. 216,218,222,262,263, 266
Pressure Cap ................................. 268
Convex Outside Mirror ...................... 93
Checking &
High Fill Reservoir
Low Coolant Light ......................... 112
Proper Mixture to Use ........... 217. 262
S.a€ety
Warnings .... 106 ,. 217.263.264. 267
Temperature Gage ........................ 106
Corvette Action Center .................... 343
Cruise Control
................................... -84
Cup Holder ......................................... 96
Curves,
Driving on ........................... 179
Customer Assistance Infomation ... 341
DAB (Delayed Accessory Bus) ........ 57
Daytime Running Lights ................... 90
Defensive Driving
............................ 168
Dead Battery: What to . Do ............... 205
Defogger, Power Mirror .................... 139
Defogger. Rear Window ........... 138. 144
Defrosting Window .......................... 137
Dimensions ...................................... 3 16
Directional Controls. Electronic Climate
.......................................... 145
Door Ajar Light ....................’............. 107
Door Locks .......................................... 43
Dcmnshifting ................................. 69, 73
.Driver Idormation Center ............... 112
Driver Pasition .................................. 23
Driving ............................................. 163
At Night ........................................... 184
City ................................................ 190
Controlling a Skid .......................... 183
Drunken ......................................... 169
Freeway ........................................... 191
Hill and Mountain ....................... 195
Driver’s Side SIR (“Air Bag”) ........... 26
Defensively .................................... 168
In a Foreign Country ..................... 243
In Fog, Mist and Haze .................. 189
In the Rain ...................................... 186
Long Distance ............................... 193
Loss of Control ............................. 183
On Cmes ...................................... 179
Passing .................................... 87, 181
Through Deep Standing Water ....... 65
Winter Driving ............................... 198
Drunken Driving ............................ 169
Electric Outside Mirror Control ..... 93
Electrical Equipment,
Electronic Heating
. and
.Adding
.............................. 65., 146, 304
Air Conditioning ............................. 310

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...
'Emergencies. Braking ....................... 178
Emergencies. Steering in ................. 180
Emergency Starting .......................... 205
Emergencies on the Road ................. 203
Emergency Towing .......................... 208
Engine Block Heater ......................... 66
Engine
Engine Coolant Temperature
Gage ............................................... 106
Engine Cooling System .................... 262
Engine Exhaust ..................... 79, 80, 200
Coolant .......... 216, 262, 263, 311, 317
Engine Identification ......................... 304
Engine Oil ........................................ 249
Capacity .......................................... 3 1 f
Energy Conserving ......................... 252
Low Oil Light ................................. I X8
Additives ....................................... 253
Checking 81 Adding .............. 249. 250
Disposing of Used Oil .................... 254
Pressure Gage ............................... 103
Substitute ........................................ 253
Temperature Gage ......................... 104
When to Change ............................. 253
Engine Oil Life Monitor .................. 109
Engine Overheating ......................... 213
160
Engine Power Curves ....................... 319
Engine Power Key ............................. 56
Engine Power Switch ........................ 74
Engine Specifications ....................... 313
Engine, starting
Automatic Transmission ................. 63
Manual Transmission ..................... 65
Ethanol in Gasoline .......................... 242
Exhaust
Dangerous Gas in ....... 59, 79,80, 200
Parking with the.Engine
Expectant Mothers, Use of
Expressway Driving ......................... 191
Extender, Safety Belt .......................... 37
Exterior Appearance
Running ............................ 67, 78, 80
.Safety Belts ...................................... 31
(see Appearance Care)
Rbric cleaning
(see Appearance Care)
Fabric Protection ............................. 291
Fan Warnings ........... 206, 207, 215, 246
Fiberglass Springs ............................ 303
Filliig the Fuel Tank ....................... 244
Filter
Air Cleaner ............................. 254, 312
Oil ........................................... 253, 312
Finish. Damage ................................... 302
Flashers, Hazard
Warning ......................................... 204
Flat Tire ............................................ 224
Storing a .Flat-& cept ZR-l .......... 233
StoMg a .Flat-Z R-1 ..................... 234
Flooded Engine ............................ 62, . 64
System ............................................ 145
Capacities ....................................... 311
Hydraulic Clutch ............................. 260
Power Steering .............................. -269
Rear Axle ................................ 261, 318
Windshield Washer .......... 84,269, 318
plow-Through Ventilation
Pluid
Brake ..................................... 270, 317
Transmission ................. 256, 311, 317
Fluids & Lubricants ........................ 317
Fog, Driving in ................................ 189
Fog Light Bulb Replacement ... 275, 314
Freeway Driving ............................... 191
Fog Lights ............................................ 92