overheating CHEVROLET LUMINA 1993 1.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine How to Use this Manual
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Using Your 1993 Chevrolet
Owner's Manual
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.
There are nine parts with color-tabbed pages in this manual. Each part begins
with a brief list of contents,
so you can
usually tell at a glance
if that part
contains the information you want.
You can bend the manual slightly to
reveal the color tabs that help you find a
part.
6
Part 1: Seats and Safety Belts
This part tells you how to use your seats
and safety belts properly.
Part 2: Features & Controls
This part explains how to start and
operate your Chevrolet.
Part 3: Comfort Controls & Audio
Systems
This part tells you how to adjust the
ventilation and comfort controls and
how
to operate your audio 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 part tells you what to do if you
have a problem while driving, such as a
flat tire or engine overheating.
Part 6: Service & Appearance Care
Here the manual tells you how to keep
your Chevrolet running properly and looking good.
Part 7: Maintenance Schedule
This part tells you when to perform
vehicle maintenance and what fluids and lubricants to use.
Part 8: Customer Assistance
Information
This part tells you how to contact
Chevrolet for assistance and how to get
service publications. It also gives you
information on
Reporting Safety Defects.
Part 9: Index
Here's an alphabetical listing of almost
every subject in this manual. You can
use it to quickly find something you
want to read.
Service Station Information
This is a quick reference of service
information. You can find it on the last
page of this manual.

Downloaded from www.Manualslib.com manuals search engine Features & Controls
Engine Coolant Temperature Warning Light
This light tells you that your engine
coolant has overheated or your radiator
cooling fan is not working. If you have
been operating your vehicle under normal driving conditions, you should
pull
off the road, stop your vehicle and
turn the engine
off as soon as possible.
HOT COOLANT CAN BURN YOU
BADLY!
In
Problems on the Road, this manual
shows what to
do. See the Index under
Engine Overheating.
Engine Coolant Temperature
Gage
(OPTION)
If you have the gage cluster, you have a
gage that shows the engine coolant
temperature. If the gage pointer moves
into the red area, your engine is too hot!
That reading means the same thing as
the warning light. 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 the
Index under
Engine Overheating.
Low Coolant Warning Light
(v6 ENGINES)
If this light comes on, your system is
low on coolant and the engine may
overheat. See the
Index under Engine
Coolant and have your vehicle serviced
as soon as you can.

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Driving with a Trailer (CONT.)
Making Turns
When you’re turning with a trailer, make wider turns than normal. Do this
so your trailer won’t strike soft
shoulders, curbs, road signs, trees, or
other objects. Avoid jerky or sudden
maneuvers. Signal well in advance.
Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle has
to have a different turn signal flasher
and extra wiring. The green arrows on
your instrument panel will flash
whenever you signal a turn or lane
change. Properly hooked up, the trailer
lights will also flash, telling other
drivers you’re about to turn, change
lanes or stop.
I60
When towing a trailer, the green arrows
on your instrument panel will flash for
turns even if the bulbs on the trailer are
burned out. Thus, you may think
drivers behind you are seeing your
signal when they are not. It’s important
to check occasionally to be sure the
trailer bulbs are still working.
Your vehicle has bulb warning .lights.
When you plug trailer lights into your
vehicle’s lighting system, its bulb
warning lights may not let you know if
one
of your lights goes out. So, when
you have trailer lights plugged in, be
sure to check your vehicle and trailer
lights from time to time to be sure
they’re all working. Once you disconnect the trailer lights, the bulb
warning lights again can tell you if one
of your vehicle lights
is out.
Driving On Grades
Reduce speed and shift to a lower gear
before you start down a long or steep
downgrade. If you don’t shift down,
you
might have to use your brakes so much
that they would get hot and no longer
work well.
On a long uphill grade, shift down and
reduce your speed to around
45 mph
(70 Wh) to reduce the possibility of
engine and transaxle overheating.
If you are towing a trailer and you have
an automatic transaxle with Overdrive,
it’s best to drive in
D instead of (or,
as you need to, a lower gear). This will
minimize heat build-up and extend the
life of your transaxle.

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some problems that
can occur on the
road
.
Part 5
Problems on the A
b
1
Hazard Warning Flashers ........................................................................\
........... 164
Jump Starting ........................................................................\
.............................. 165
Towing Your Chevrolet ........................................................................\
.............. 169
Engine Overheating ........................................................................\
.................... 173
If a Tire Goes Flat ........................................................................\
....................... 180
Changing a Flat Tire ........................................................................\
................... 181
Compact Spare Tire ........................................................................\
.................... 187
If You're Stuck: In Sand, Mud, Ice or Snow ..................................................... 188

Downloaded from www.Manualslib.com manuals search engine If No Steam is Coming from Your
Engine:
If you get the overheat warning but see
or hear no stem, the problem may not
be
too serious. Sometimes the engine
can get
a little too hot when you:
Climb a long hill on a hot day.
Stop after high speed driving.
Idle for long periods in traffic.
Tow a trailer.
If you get the overheat warning with no
sign of steam, try this for a minute or
1. If you have an air conditioner, turn it
so:
Off.
I If Steam is Coming from Your Engine:
’I
Engine Overheating
You will find a coolant temperature
gage or the warning light about a hot
engine on your Chewolet’s instrument
panel. You also have a low coolant
warning light on your instrument panel.
See the
Index under Coolant
Temperature Gage for the gage cluster. Steam from
an overheated
engine can burn you badly,
/I‘ 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.
2. Tm on your heater to full hot at the
I I highest fan speed and open the
window as necessary.
3. Try to keep your engine under load
(in a drive gear where the engine
I runs slower). IL

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Problems on the Road
hgine Overheating (CONT.)
If you no longer have the overheat
warning, you can drive. Just to be safe,
drive slower for about ten minutes.
If
the warning doesn’t come back on, you
can drive normally.
If the warning continues, pull over,
stop, and park your vehicle right away.
If 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.
LAU I IVN
2.2L L4 Cooling System
When you decide it’s safe to lift the
hood, here’s what you’ll see:
(A) Coolant recovery tank
(B) Radiator pressure cap
(C) Electric engine fan
If the coolant inside the coolant
recovery tank is boiling, don’t do
anything else until it cools down.
All V6 Cooling Systems
When you decide it’s safe to lift the
hood, here’s what you’ll see:
(A) Coolant recovery tank
(B) Radiator pressure cap
(C) Electric engine fan
If the coolant inside the coolant
recovery tank is boiling, don’t do
anything else until it cools down.
I

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Problems on the Road
Engine Overheating (CONTJ
3.1L V6 (VIN CODE T or W): There
are two bleed valves. They are located
on the thermostat housing and the
thermostat bypass tube. 3.4L V6 (VIN CODE X): There are
two bleed valves. They are located
on
the thermostat housing and the
heater inlet pipe.
I
4. Fill the radiator with the proper mix,
up to the base of the filler neck.
If you see a stream of coolant coming
from an air bleed valve, close the
valve. Otherwise, close the valve(s)
after the radiator is filled.
5. Rinse or wipe any spilled coolant
from the engine and compartment.
I78

Downloaded from www.Manualslib.com manuals search engine Problems on the Road
Engine Overheating (CONT.)
10. Then replace the pressure cap. Be
sure the arrows on the pressure cap
line up like this.
1 1. Check the coolant recovery tank.
The coolant level should be at
HOT
when the engine is hot and at
COLD when the engine is cold.
- i: .:-
Ifa Tire Goes Flat
It’s unusual for a tire to “blow OU~,)
while you’re driving, especially if you
maintain your tires properly. If air goes
out of a tire, it’s much more likely to
leak out slowly. But
if you should ever
have a “blowout,” here are a few tips
about what to expect and what to do:
If a front tire fails, the flat tire will
create a drag that pulls the vehicle
toward that side. Take your foot
off the
accelerator pedal and grip the steering
wheel firmly. Steer to maintain lane
position, then gently brake to a stop
well out of the traffic lane.
A rear blowout, particularly on a curve,
acts much like a
skid and may require
the same correction you’d use in a
skid.
In any rear blowout, remove your foot
from the accelerator pedal. Get the
vehicle under control by steering the
way you want the vehicle to go. It may
be very bumpy and noisy, but you can
still steer. Gently brake to a stop, well
off the road if possible.
If your tire goes flat, the next section
shows how
to use your jacking
equipment to change a
flat tire safely.

Downloaded from www.Manualslib.com manuals search engine How to Check
The proper fluid should be added if the
level does not reach the bottom of the
diaphragm when it’s
in place in the
reservoir. See the instructions on the
reservoir cap.
Engine Coolant
The following explains your cooling
system and how to add coolant when it
is low. If you have a problem with
engine overheating or
if you need to add
coolant to your radiator, see the
Index
under Engine Overheating.
The proper coolant for you1 ~ ~ ~ _et
will:
Give freezing protection c, .m 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
What to Use:
Use a mixture of one-half clean water
(preferably distilled) and one-half
antifreeze that meets
“GM Specification
1825-M,” which won’t damage ,
-34°F (-37°C).
(128°C).
temperature. should. aluminum
parts. You can
also use a
recycled coolant conforming to
GM
Specification 1825-M with a complete
coolant flush and refill. If you use this
mixture, you don’t need to add anything
else.
I
9
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
50/50 mix of clean
water and a proper antifreeze.

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Radiator Pressure Cap
214
Your radiator cap is a 15 psi
(105 Wa) pressure-type cap and
must be tightly installed to prevent
coolant loss and possible engine
damage
from overheating. Be su
the arrows on the cap line up wi
the overflow tube on the radiato
filler neck.
When you replace your radiator
pressure cap, an
AC@ 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
AC@ thermostat is recommended.
Power Steering Fluid
How To Check Power Steering Fluid:
Unscrew the cap and wipe the dipstick
with a clean rag. Replace the cap and
completely tighten it. Then remove the
cap again and look at the fluid level
on
the dipstick.
When the engine compartment is hot,
When the engine compartment is cool,
the
level should be at the
H mark.
the level should be at the
C mark.