1997 CHEVROLET EXPRESS engine overheat

Downloaded from www.Manualslib.com manuals search engine The 1997 Chevrolet Express Owner’s Manual
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Seats and Restraint Systems
This section tells you how to use your seats and safety belts properly. It also explains the “SIR” system.
Features and Controls
This section explains how to start and operate your vehicle,
Comfort Controls and Audio Systems
This section tells you how to adjust the ventilation and comfort controls and how to operate your audio system.
Your Driving and the Road
Here you’ll find helpful information and tips about the road and how to drive under different conditions.
Problems on the Road
This section tells what to do if you have a problem while driving, such as a flat tire or overheated engine, etc.
Service and Appearance Care
Here the manual tells you how to keep your vehicle running properly and looking good.
Maintenance Schedule
This section tells you when to perform vehicle maintenance and what fluids and lubricants to use.
Customer Assistance Information
This section tells you how to contact Chevrolet for assistance and how to get service and owner publications.
It
also gives you information on “Reporting Safety Defects” on page 8- IO.
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.
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Downloaded from www.Manualslib.com manuals search engine Engine Coolant Heater (Option)
In very cold weather, 0°F (- 18 "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 I
I /! 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. Before starting the engine, be sure to unplug and 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
GM 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 DRIVE (D): This position is for normal driving. If you
need more power for passing, and you’re:
Going less than about 35 mph (56 km/h), push your
accelerator pedal about halfway down.
Going about 35 mph (56 kmh) or more, push the
You’ll shift down to the next gear and have more power.
accelerator all
the way down.
You should
use DRIVE (D) (or, as you need to, a lower
gear) when towing a trailer to minimize heat build-up
and extend the life
of your transmission.
THIRD (3): This position is also used for normal
driving, however, it offers more power and lower fuel
economy than DRIVE
(D). You should use THIRD (3)
when carrying a heavy load or driving on steep hills.
SECOND (2): This position gives you more power
but lower fuel economy.
You can use SECOND (2) on
hills. It can help control your speed as you go down
steep mountain roads, but then you would also want
to use your brakes off and on. If you manually
select SECOND
(2), the transmission will drive in
SECOND (2). You may use this feature for reducing
torque to the rear wheels when you are trying to start
your vehicle from a stop on slippery road surfaces.
FIRST (1): This position gives you even more power
(but lower fuel economy) than SECOND
(2). You can
use it on very steep hills, or in deep
snow or mud. If
the selector lever is put in FIRST( l), 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 are stuck in
very deep sand or mud or are
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
PARK (P) to hold your vehicle in position
on
a hill.
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Downloaded from www.Manualslib.com manuals search engine If the ignition is on when the parking brake is released,
the brake system warning light will go off.
NOTICE:
Driving with the parking brake on can
cause your rear brakes
to overheat. You may
have to replace them, and you could also damage
other parts of your vehicle. Always check to be
sure your parking brake is fully released before
you drive.
If you are towing a trailer and are parking on any hill,
see “Towing a Trailer’’
in the Index. That section shows
what
to do first to keep the trailer from moving.
Shifting Into PARK (P)
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It can be dangerous to get out of your vehicle if
the shift lever is not fully in
PARK (P) with the
parking brake firmly set. Your vehicle can roll.
If you have left the engine running, the vehicle
can move suddenly. You or others could be
injured.
To be sure your vehicle won’t move, even
when you’re on fairly level ground, use the steps
that follow. If you’re pulling
a trailer, see
“Towing a Trailer” in
the Index.
1. Hold the brake pedal down with your right foot and
set the parking brake.
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Downloaded from www.Manualslib.com manuals search engine Leaving Your Vehicle With the
Engine Running
A CAUTION:
It can be dangerous to leave your vehicle with
the engine running. Your vehicle could move
suddenly if the shift lever is not fully in
PARK (P)
with the parking brake firmly set. And, if you
leave the vehicle with the engine running, it could
overheat and even catch fire. You or others could
be injured. Don’t leave your vehicle with the
engine running unless you have to.
Torque Lock
If you are parking on a hill and you don’t shift your
transmission into PARK
(P) properly, the weight of the
vehicle may put too much force on the parking pawl in
the transmission. You may find it difficult to pull the
shift lever out
of PARK (P). This is called “torque lock.”
To prevent torque lock, set the parking brake and then
shift into
PARK (P) properly before you leave the
driver’s seat.
To find out how, see “Shifting Into
PARK (P)” in the Index.
When
you are ready to drive, move the shift lever out of
PARK
(P) before you release the parking brake.
If torque lock does occur, you may need to have another
vehicle push yours a little uphill
to take some of the
pressure from the parking pawl in the transmission,
so you can pull the shift lever out of PARK
(P).

Downloaded from www.Manualslib.com manuals search engine For steady wiping at low speed, turn the band to the
LOW position. For high-speed wiping, turn the
band further, to HIGH.
To stop the wipers, move the
band to OFF.
Remember that damaged wiper blades may prevent you
from seeing well enough to drive safely.
To avoid
damage, be sure to clear ice and snow from the wiper
blades before using them. If they are frozen to the
windshield, carefully loosen or thaw them. If your
blades do become damaged, get new blades or
blade inserts.
Heavy snow or ice can overload your wipers. The
windshield wiper motor is protected from overload by a
circuit breaker and a fuse. If the motor overheats due to
heavy snow, etc., the wiper will stop until the motor cools. Although the circuit is protected from electrical overload,
overload due to heavy snow, etc. may cause wiper linkage
damage. Always clear ice
and heavy snow from the
windshield before using your windshield wipers.
Windshield Washer
At the top of the lever, there’s a paddle with the word
PUSH on it.
To spray washer fluid on the windshield,
push the paddle.
Washer fluid will spray
as long as you push the paddle.
When you let go of the paddle, the wipers will continue
to wipe for approximately two more wipe cycles and
then either stop or return to the preset speed.
In freezing weather, don’t use your washer until
the windshield is warmed. Otherwise the washer
fluid can form ice on the windshield, blocking
your vision.
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Downloaded from www.Manualslib.com manuals search engine Listed are four situations you may experience with your
fuel gage:
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0
0
0
At the gas station, the fuel pump shuts off before the
gage reads
FULL (F).
It takes a little more or less fuel to fill up than the
fuel gage indicated. For example, the gage may have
indicated the tank was half full, but it actually took a
little more or less than half the tank’s capacity to
fill
the tank.
The gage moves a little when you turn
a corner or
speed up.
The gage doesn’t
go back to EMPTY (E) when you
turn off the ignition.
None
of these indicate a problem with the fuel gage.
Engine Coolant Temperature Gage
This gage shows the engine
gage pointer moves into
the red area your engine is
coolant
temperature.
If the
’% 260
too hot!
It means that your engine coolant has overheated. If
you have been operating your vehicle under normal
operating 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.

Downloaded from www.Manualslib.com manuals search engine Making ’hrns
NOTICE:
Making very sharp turns while trailering could
cause the trailer to come in contact with the
vehicle. Your vehicle could be damaged. Avoid
making very sharp turns while trailering.
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.
’hrn Signals When Towing a Trailer
When you tow a trailer, your vehicle has to have extra
wiring and a heavy-duty turn signal flasher (included in
the optional trailering package).
The arrows on your instrument panel will flash
whenever you signal a turn or lane change. Properly
hooked up, the trailer lamps will also flash, telling other
drivers you’re about to
turn, change lanes or stop. When
towing a trailer, the 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.
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 kmh) to reduce the
possibility of engine and transmission overheating.
When towing at high altitude on steep uphill grades,
consider
the following: Engine coolant will boil at a
lower temperature than at normal altitudes. If you turn
your engine off immediately after towing at high altitude
on steep uphill grades, your vehicle may show signs
similar
to engine overheating. To avoid this, let the
engine run while parked (preferably on level ground)
with the automatic transmission in
PARK (P) for a
few minutes before turning the engine off. If you do
get the overheat warning, see “Engine Overheating”
in
the Index.
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