engine overheat CHEVROLET CORVETTE 1994 4.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine How to Us; This
Manual
5.-
Many people read their owner’s manual
from beginning to end when they first
receive their new vehicle. This will help
you learn about the features and controls
for your vehicle.
In this manual, you’ll
find that pictures and words work
together to explain things quickly.
Index: A good place to look for what
you need is the In-dex in back of the
manual. It’s an alphabetical list of all
that’s iq the manual, and the page
number where you’ll find it.
Parts 1-8: Each part of this manual
begins with a brief list of its contents,
so
you cap often find at a glance if a part
Eontains the information you want.
How to Use This Manual: This part
tells you how to use your manual and
includes safety and vehicle damage
warnings and symbols.
Part 1 - Seats & Restraint Systems:
This part tells you how to use your seats
and safety belts properly. It also
explains the
air bag system.
Part 2 - Features & Controls: This
part explains how to start and operate
your Corvette.
Part 3 - Comfort Controls & Audio
Systems:
This ,part tells you how to
adjust the comfort controls and
how to
operate your sound system.
Part 4 - Your Driving and the Road:
Here you’ll find helpful information
and tips about the road and how to drive
under different conditions.
Part 5 - Problems on the Road: This
>art tells you what to do if you have a
Jroblem while driving, such as a flat
:ire or engine overheating, etc.
Part 6 - Service & Appearance
Care:
Here the manual tells yqap how
:o keep your Corvette running ’’:;’.
properly and looking good. ’,:.
Part 7 - Maintenance Schedule:
This part tells when to perfom,,vehicle
maintenance and what fluids
a&l
lubricants to use.
Part 8 - Customer Assistanc?
~nformation:
This part includ&
important information about rdiorting
safety defects and gives you &$$ls
about the “Roadside Assistancq?
program. You will also find cG$@mer
satisfaction phone numbers (ir&luding
customer satisfaction numbers .for the
hearing and speech impaired),
&s well
as the mediationhrbitration prokedure.
We’ve also included ordering
information for service publicagions in
this part.
Service Station Information: This is
a quick reference of service
information. You can find it
on the last
page of this manual.
..
I ‘I ,
7 I ...

Downloaded from www.Manualslib.com manuals search engine NOTICE:
Don’t drive in “2” (Second Gear) for
more than
5 miles (8 km), or at
speeds over
55 mph (88 km/h), or
you can damage your transmission.
Use or “D” as much as possible.
Don’t shift into
“2” unless you are
going slower than
65 mph (1 05
km/h), or you can damage your
engine.
0 1 (First Gear)
This position gives you even more power
(but lower fuel economy) than
“2.” You
can use it on very steep hills, or in deep
snow or mud. If the selector lever is put
ir
“1,” the transmission won’t shift into first
gear until the vehicle is going slowly
enough.
NOTICE:
If your rear wheels can’t rotate, don’t
try to drive. This might happen if you
were stuck in very deep sand or mud
or were up against a solid object. You
could damage your transmission.
Also, if you stop when going uphill,
don’t hold your vehicle there with
only the accelerator pedal. This
could overheat and damage the
transmission. Use your brakes or
shift into
“P” (Park) to hold your
vehicle in position on a hill.
Maximum engine speed is limited to
protect driveline components from
improper operation.
1 3 5
I Manual Transmission
six-Speed
?his is your shift pattern. Here’s how to
bperate your transmission:
1 (First Gear) - Press the clutch
pedal and shift into
“ 1 .” Then, slowly
let up on the clutch pedal as
you press
the accelerator pedal.
You can shift into
‘‘ 1 ” when you’re
going less than
40 mph (64 km/h). If
you’ve come to a complete stop and
it’s hard to shift into
“1,” put the shift
lever in “Neutral” and let up on the
clutch. Press the clutch pedal back
down. Then shift into
“1.”
53 ...

Downloaded from www.Manualslib.com manuals search engine Features and Controls
Cigarette Lighter
To use the lighter, push it in all the way
and let go. When it’s ready, it will pop
back by itself.
NOTICE:
Don’t hold a cigarette lighter in with
your hand while it is heating. If you
do, it won’t be able to back away
from the heating element when it’s
ready. That can make it overheat,
damaging the lighter and the heating
element.
Accessory Plug
This plug is under the trim panel in front
of the center console. The plug can be
used to connect electrical equipment such
as a cellular phone
or CB radio. Be sure
to follow the installation instructions
included with
the equipment.
To use the accessory plug:
1. Open the center console and carefully
pull the carpet away from the
coinholder to uncover the screws on
either side.
2. Remove the screws.
3. Open the ashtray, pull out the rubber
insert from the front cupholder and
remove the screw inside the
cupholder.
4. Remove the four screws that attach
5. Remove the console door.
6. RemovE the trim plate by pulling up
7. Disconnect the plug by pulling
the console door.
and back.
forward on the plastic locking tab and
pull the plug into the console.
The plug has three separate wires:
The orange wire connects to the
battery.
The pink wire connects to the ignition.
Power is only available in “Run.”
The black wire connects to the
ground.
... 76

Downloaded from www.Manualslib.com manuals search engine I
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01
SERVICE
LTPWS
‘ervice LTPWS Light (Option)
‘he “SERVICE LTPWS” light comes on
rhenever a LTPWS part is not working
roperly. It may also come on when
ou’re going less than
25 mph (40 kmk)
r in stop-and-go traffic. The light will go
ut when the electronic receiver gets a
ignal from each sensor.
lheck the system by turning the ignition
n. The light should come on and then go
ut. See your dealer if the light stays on
r doesn’t come on. Here
are two situations that cause the
“SERVICE LTPWS” light to come on
and stay on. Both
of these situations are
normal and do not indicate that anything
is wrong with your Corvette.
You turn the ignition on three times in
a row for half an hour without moving
your Corvette. The light will then
come on every time you
turn the
ignition on until you move your
Corvette.
You run your Corvette three times in a
row for half an hour while all four
sensors are missing. (All the sensors
would be missing, for example, if yo,u
put different wheels on your Corvette
without transferring the sensors.)
If you would like to clear the
”SERVICE LTPWS” light from your
driver information center permanently,
see your dealer.
[f the light comes on and stays on, even
when the vehicle is driven, there may be a
problem with LTPWS. See your dealer.
185
- k- $3 26C
- TEMP .F
100
rEMP “F
LT5 Engine LT1 Engine
Engine Coolant Temperature Gauge
This gauge shows the engine coolant
temperature. If the gauge pointer moves
into the shaded area, your engine is too
hot!
It means that your engine coolant has
overheated. If you 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.
HOT COOLANT CAN BURN YOU
BADLY!
In “Problems on the Road,” this manual
shows what to do. See “Engine
Overheating” in the Index.
89 ...

Downloaded from www.Manualslib.com manuals search engine Features and Controls
I NOTICE:
I
Damage to your engine from
neglected oil problems can be costly
and is not covered by your warranty.
... 92
TEMP OIL
OF TEMP OIL
‘F
280
T1 Engine LT5 Enginl
Zngine Oil Temperature Gauge
rhis gauge shows your engine oil
emperature. Oil temperature may
vary
vith the type of driving you do and
weather conditions, but readings above
the shaded area show the normal
operating range. If your oil temperature
is close to the shaded area and it 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.
1 IZI I
I ,I I
)r numeric gauge measurements,
ness the
“GAUGES” button on the Trip
[onitor until
“OIL” appears. The number
at appears next to the fuel gauge is the
1 temperature. If “LO’ appears, the
mperature
is below 32°F (OOC).

Downloaded from www.Manualslib.com manuals search engine Check Gauges Light
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.
This light can come on for:
high oil temperature or low oil
pressure
high coolant temperature
high or low battery voltage
low fuel level
LOW
OIL
L
Low Oil Light
This light should come on while you are
starting your engine. If
the light doesn’t
come on, have it repaired.
If the light
comes on while starting your engine and
stays on, your engine oil level may be too
low. You may need to add oil. See
“Engine Oil” in the Index.
LOW
COOLANT
Low Coolant Light
This light comes on when the coolant in
the system is low. You may need to add
coolant. See “Engine Coolant” in the
Index.
NOTICE:
Driving with the “LOW COOLANT”
light on could cause your Corvette to
overheat. See “Engine Overheating”
in the Index. Your Corvette could be
damaged, and it wouldn’t be covered
by your warranty.
93 ...

Downloaded from www.Manualslib.com manuals search engine Here you’tl find what to do
about some problems that can
occur on the road
.
Part 5
Problems on the Road
Hazard Warning Flashers ....................................... 142
rumpStarting ................................................ 143
rowing Your Vehicle
.......................................... 146
Engine Overheating ........................................... 150
[f a Tire Goes Flat ............................................ 159
[f You’re Stuck: In Sand. Mud. Ice or Snow ........................ 169
141 ...

Downloaded from www.Manualslib.com manuals search engine Problems on the Road
NOTICE:
Towing a vehicle over rough surfaces
could damage a vehicle. Damage
can occur from vehicle-to-ground
or vehicle-to-wheel-lift-equipment.
To help avoid damage, install a
towing dolly and raise vehicle until
adequate clearance
is obtained
between the ground and/or wheel-lift
equipment. Attach
a separate safety chain around the
outboard end of each lower control
arm.
NOTICE:
Do not allow chains to contact
spring, as damage to spring could
result.
Engine Overheating
You will find a engine coolant
temperature gauge on the instrument
cluster and a low coolant light on the
Driver Information Center.
If Steam Is Corning from Your Engine:
. . .I50

Downloaded from www.Manualslib.com manuals search engine 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.
If No Steam Is Coming from Your
Engine:
If you get the overheat warning but see 01
hear no steam, the problem may not be
too serious. Sometimes the engine can ge
a little too hot when you:
0 Climb a long hill on a hot day.
0 Stop after high speed driving.
0 Idle for long periods in traffic.
If you get the overheat warning with no
sign of steam,
try this for a minute or so:
1. Turn off your air conditioner.
2. Turn on your heater to full hot at the
highest fan speed and open the
window as necessary.
(Neutral).
3. If you’re in a traffic jam, shift to “N’
[f you no longer have the overheat
warning, you can drive. Just to be safe,
hive slower for about ten minutes. If the
warning doesn’t come back on, you can
drive normally.
[f the warning continues, pull over, stop,
and park your vehicle right away.
[f there’s still no sign of steam, you can
idle the engine for two or three minutes
while you’re parked, to see if the warning
stops. But then, if you still have
the
warning, TURN OFF THE ENGINE
AND GET EVERYONE OUT
OF THE
VEHICLE until it cools down.
You may decide not to lift the hood but to
get service help right away.
Cooling System
When you decide it’s safe to lift the hood,
here’s what you’ll see on the LTl engine:
1. Coolant recovery tank
2. Coolant high fill reservoir with
3. Electric engine fans
pressure cap
151 ...

Downloaded from www.Manualslib.com manuals search engine Problems on the Road
F
Cooling System
When you decide it’s safe to lift the hood,
here’s what you’ll see on the
LT5 engine:
1. Coolant recovery tank
2. Coolant high fill reservoir with
3. Electric engine fans
pressure cap
. . -152
If
the coolant inside the coolant recovery
tank is boiling, don’t do anything else
until it cools down.
When it is cool, remove the coolant
recovery tank cap and look at the dipstick.
The coolant level should be at or above
“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 NOTICE:
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.