coolant temperature CHEVROLET CORVETTE 1996 4.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine Engine Coolant Heater (Canada Only)
In very cold weather, 0°F (- 18 O C) or colder, the engine
coolant heater can help. You’ll get easier starting and
better fuel economy during engine warm-up. Usually,
the coolant heater should be plugged in a minimum of
four hours prior to starting your vehicle.
To Use the Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
3. Plug it into a normal, grounded 110-volt AC outlet.
A CAUTION:
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the wrong
kind of extension cord could overheat and cause
a fire. You could be seriously injured. Plug the
cord into
a properly grounded three-prong
110-volt
AC outlet. If the cord won’t reach, use a
heavy-duty three-prong extension cord rated for
at least
15 amps.
4. After you’ve used the coolant heater, be sure to store
the cord as it was before to keep
it away from
moving engine parts. If you don’t, it could be
damaged.
How long should you keep the coolant heater plugged
in? The answer depends on the outside temperature, the
kind of
oil you have, and some other things. Instead of
trying to list everything here, we ask that you contact
your Chevrolet dealer in the area where you’ll be
parking your vehicle. The dealer can give you the best
advice for that particular area.

Downloaded from www.Manualslib.com manuals search engine NOTICE:
Do not try to force the shift lever into
SECOND (2) or THIRD (3) when the ONE TO
FOUR light comes on. Do not try to re-engage
FIRST (1) after starting to shift into FOURTH (4).
You will damage your transmission. Shift only
from FIRST
(1) to FOURTH (4) when the light
comes on.
This light will come on when:
The engine coolant temperature is higher than 120 OF
(49 O C).
0 You are going 15 to 19 mph (24 to 3 1 km/h), and
You are at 21 percent throttle or less.
Downshifting (Manual Transmission)
Do not downshift into the gear shown below at a speed
greater than shown in the table:
FIRST
(1) .......... :. ........ 44 mph (71 km/h)
SECOND (2) ................ 64 mph (103 km/h)
THIRD (3) .................. 90 mph (145 km/h)
FOURTH (4) ............... 116 mph (187 kmk)
If you skip more than one gear when you
downshift, you could lose control of your vehicle.
And you could injure yourself or others. Don’t
shift from SIXTH
(6) to THIRD (3), FIFTH (5) to
SECOND (2) or FOURTH (4) to FIRST (1).

Downloaded from www.Manualslib.com manuals search engine Engine Coolant Temperature Gauge
185
TEMP
HH
“F
This gauge shows the
engine coolant temperature.
If the gauge pointer moves
into the shaded area, your
engine is too hot!
The number that appears next to the fuel gauge is the
-~ 1- -For numeric gauge
measurements, pies
the GAUGES button
on
I coolant temperature. If LO appears, the temperature is
It means that your engine coolant has overheated. If you below 32”~ (0°C).
have been operating your vehicle under normal driving
conditions, you should pull
off the road, stop your
vehicle and turn
off the engine as soon as possible.
In “Problems on the Road,” this manual shows what to
do. See “Engine Overheating” in the Index.
2-82

Downloaded from www.Manualslib.com manuals search engine Engine Oil Temperature Gauge
320
OIL TEMP OF
This gauge shows your
engine oil temperature. Oil
temperature may vary with
the type
of driving you do
and weather conditions.
If your gauge pointer moves close to or into the shaded
area and stays there, your oil temperature is too high.
Check the engine coolant temperature and engine oil
level.
If your engine is too hot, see “Engine
Overheating” in the Index. Your vehicle may need
service; see your dealer.
I,
For numeric gauge
measurements, press the GAUGES button on the trip
monitor until
OIL appears.
The number that appears next to the fuel gauge is the oil
temperature.
If LO appears, the temperature is below
32°F (OOC).
2-90

Downloaded from www.Manualslib.com manuals search engine Security Light Check Gauges Light
SECURITY
This light comes on to
remind you to
arm your
theft-deterrent system. If it
comes on and stays on when
your ignition is on, there
may be a problem with your
theft-deterrent system.
CHECK
GAUGES
This light will come on
briefly when you are
starting the engine.
If the
light comes on and stays on
while you are driving, check
your gauges to see if they
are in the warning areas.
See “Universal Theft-Deterrent” and “PASS-Key
System” in the Index.
System Problems Light
If SYS flashes on the display near your fuel gauge, there
may be a problem with your Corvette’s electrical
system. If the
SECURITY light flashes at the same time,
there is
a problem with your theft-deterrent system.
Have your vehicle checked by your dealer
if SYS keeps
appearing. This
light can come on for:
0 High Engine Oil Temperature or Low oil Pressure
High Coolant Temperature
High or Low Battery Voltage
0 Low Fuel Level
0 High Automatic Transmission Fluid Temperature
2-93

Downloaded from www.Manualslib.com manuals search engine Gauge Markings
The analog gauges provide a quick visual reference to
the actual measurements of these gauges. However, you
must keep in mind that the gauges aren't linear. This
means that the middle mark
is not a temperature halfway
between the top and bottom temperatures on the gauge.
1
E
A
p
E
J
For your convenience, the following table gives the
exact reading for each mark.
For numeric gauge measurements, refer to the digital
readings by pressing
GAUGES on the trip monitor.
Marking
Gauge
E
D C B A
Oil 320.F
285°F
250°F 215.F 100.F
Temperature
.(127'C) (113'C) (99'C) (85'C) (38'C) Temperature
260'F
235'F
210'F 185OF 100.F Coolant (160.C)
(145.C)
(121'C) (102OC)
(38-C)
2-96

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission Fluid Temperature Reading
Automatic transmission
fluid temperature will
be displayed if you press
the GAUGES button on
the trip monitor until
AUTO appears.
The number that appears next to the fuel gauge is the
automatic transmission fluid temperature. If
LO appears,
the temperature is below 32°F (0°C). It’s
normal for the transmission fluid temperature to
vary, depending on the type
of driving you do and
weather conditions. If you drive on long grades on a hot
day, the transmission fluid temperature will be higher
than normal driving on a cold day. If you
drive your
Corvette at high speeds with a lot of stop-and-go or fast
accelerations, your transmission fluid temperature may
also be higher.
If the transmission fluid exceeds
280” F (1 38 “C), the
CHECK GAUGES light will come on and HI AUTO
will be displayed next to the transmission fluid
temperature when you toggle through the GAUGES
button. You should move the shift lever to DRIVE
(D)
and continue driving at a slower, constant speed.
Monitor the transmission fluid temperature and allow it
to cool to 180°F (82°C) to 200°F (93°C). Then, you
should check the transmission fluid level for a low fill or
overfill condition and bring your Corvette in for service
as soon as possible if the oil is too low or overfilled.
(See “Automatic Transmission Fluid” in the Index.)
Also, check the engine coolant temperature. If it’s too
hot, see “Cooling System” in the Index.
2-97

Downloaded from www.Manualslib.com manuals search engine "'"J NORMAL NC: Use for normal cooling on hot
days. This setting cools outside air and directs it through
the instrument panel vents.
The air conditioning compressor operates in NORMAL
A/C, as well as RECIRCULATE, BI-LEVEL and
DEFROST. It only works when the outside temperature
is above freezing. When the air conditioning compressor
is on, you may sometimes notice slight changes in
your vehicle's engine speed and power. This
is normal
because the system is designed to cycle the compressor
on and
off to keep the desired cooling and help
fuel economy.
+,d BI-LEVEL: This setting cools or heats outside air
and directs it through the instrument panel vents and the
floor ducts.
de
do
do /I VENT: Air flows through the instrument panel
vents. The air conditioning compressor does not run in
VENT mode.
wg HEATER: This setting directs most of the air
through the floor ducts and some of the air through the
defroster vents. The air conditioning compressor does
not run in HEATER mode.
DEFROST: This setting directs most of the
air through the windshield defroster and side window
defogger vents and some of the air through the
floor ducts.
Heating
The heater works best if you keep your windows closed
while using it.
Press HEATER and
FAN UP, then slide the temperature
control lever to a comfortable setting.
If your vehicle has an engine coolant heater and you
use it in cold weather,
0°F (- 18 "C) or lower, your
heating system can provide heat more quickly because
the engine coolant is already warmed. See "Engine
Coolant Heater" in the Index.

Downloaded from www.Manualslib.com manuals search engine Automatic Control
The system will adjust to maintain the'temperature you
set. It will select the best fan speed and aifflow setting to
keep you comfortable with the least amount of noise.
Press the arrows on the TEMP SET switch to set a
comfortable temperature. Then press AUTO and the fan
speed will adjust automatically unless you press the
arrows on the AUTO switch.
Manual Heating
The heater works best if you keep your windows closed
while using it.
Press the arrows on the TEMP SET switch to set a
comfortable temperature. Then press HEATER and, if
you don't like the automatic setting, press the arrows on
the fan speed switch. In AUTO FAN on cold days, the
fan will stay
off until the coolant warms up enough to
heat your vehicle.
If your vehicle has an engine coolant heater and you use
it in cold weather,
0 "F (- 18 O C) or lower, your heating
system can provide heat more quickly because the engine
coolant is already warmed. See "Engine Coolant Heater"
in the Index.
1
Manual Bi-Level
BI-LEVEL can heat or cool outside air and direct it in
two directions.
Press the arrows on the TEMP SET switch to set a
comfortable temperature. Press BI-LEVEL and, if you
don't like the automatic setting, press the arrows on the
fan speed switch.
Manual Ventilation
For mild outside temperatures, when little heating or
cooling
is needed, you can still direct outside air through
your vehicle.
Press the arrows on the TEMP SET switch to set a
comfortable temperature. For ventilation, the system
can't cool the vehicle below the outside temperature.
Press VENT and, if you don't like the automatic setting,
press the arrows on the fan speed switch.
3-6

Downloaded from www.Manualslib.com manuals search engine Engine Overheating
You will find an engine coolant temperature gauge on
the instrument cluster and a
LOW COOLANT light on
the Driver Information Center.
If Steam Is Coming From Your Engine
Steam from an overheated engine can burn you
badly, even if you just open the hood. Stay away
from the engine
if you see or hear steam coming
from it. Just turn it
off and get everyone away
from the vehicle until it cools down. Wait until
there is no sign of steam or coolant before
opening the hood.
If you keep driving when your engine is
overheated, the liquids in it can catch fire.
You or
others could be badly burned. Stop your engine if
it overheats, and get out of the vehicle until the
engine is cool.
I NOTICE:
If your engine catches fire because you keep
driving with no coolant, your vehicle can be
badly damaged. The costly repairs would not be
covered by your warranty.