engine overheat CHEVROLET ASTRO CARGO VAN 1995 2.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine Table of Contents
Introduction - How to Use this Manual
This section tells you how to use your manual and includes safety
and vehicle damage warnings and symbols.
Section 1 - Seats and Restraint Systems
This section tells you how to use your seats and safety belts
properly. It also explains the air bag system.
Section 2 - Features & Controls
This section explains how to start and operate your vehicle.
Section 3 - Comfort Controls & Audio Systems
This section tells you how to adjust the ventilation and comfort
controls and how
to operate your audio system.
Section 4 - Your Driving and the Road
Here you’ll find helpful information and tips about the road and
how
to drive under different conditions.
Section 5 - Problems on the Road
This section tells you what to do if you have a problem while
driving, such as a flat tire or engine overheating, etc.
Section 6- Service & Appearance Care
Here the manual tells you how to keep your vehicle running
properly and looking good.
Section 7 - Maintenance Schedule
This section. tells you when to perform vehicle maintenance and
what fluids and lubricants to use.
Section 8 - Customer Assistance Information
This section tells you how to contact GM for assistance and how to
get service publications. It also gives you information on
“Reporting Safety Defects” on page
8-4.
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.
1

Downloaded from www.Manualslib.com manuals search engine 0
0
0
0
OVERDRIVE (0)
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
- Going about 35 mph (56 km/h) or more, push the accelerator pedal
pedal
about halfway down.
all the way down.
You’ll shift down to the next gear and have
more power.
OVERDRIVE
(0) should not be used when towing a trailer, carrying a
heavy load, or driving on steep hills. Select DRIVE (D) when operating
the vehicle under any of these conditions.
DRIVE (D) - This is like OVERDRIVE (@), but you never go into
OVERDRIVE
(0). You should use DRIVE (D) when towing a trailer,
carrying
a heavy load or driving on steep hills.
SECOND GEAR (2) - This position gives you more power but lower
fuel economy. You can use SECOND GEAR
(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 GEAR (2), the transmission will drive
in second gear. 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 GEAR (1) - This position gives you even more power (but
lower fuel economy) than SECOND GEAR
(2). You can use it on very
steep hills, or
in deep snow or mud. If the selector lever is put in FIRST
GEAR
(I), the transmission won’t shift into FIRST GEAR (1) 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 u\
p
against a solid object. You could damage your transmission
or
transfer case or both.
Also, if you stop when going uphill, don’t hold your vehicle ther\
e
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.
2-20

Downloaded from www.Manualslib.com manuals search engine Parking Brake
To Set the Parking Brake
Hold the regular brake
To Release the Parking Brake
pedal down with your
right foot. Push down
the parking brake
pedal with your left
foot.
If the ignition is
on, the brake system
warning light
will
come on.
Hold the regular brake
pedal down. Pull the
brake release lever.
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.
If you are on a hill: See “Parking on Hills” in the Index.
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.
2-21

Downloaded from www.Manualslib.com manuals search engine 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
I
lP
0-
At the top of the multifunction lever there’s a paddle marked with the
windshield washer symbol and
PUSH. To spray washer fluid on the
windshield, push the paddle.
The wipers will clear the window and then either stop or return to your
preset speed.
Driving without washer fluid can be dangerous. A bad mud splash can block
your vision.
You could hit another vehicle or go off the road. Check your
washer fluid level often.
I A CAUTION:
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.
2-33

Downloaded from www.Manualslib.com manuals search engine Cigarette LighterIAshtrays
The cigarette lighter is on the left of the engine cover console. To use the
lighter, press it in all the way and let go. When it’s ready, it will
pop back by
itself.
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.
To remove the smaller
ashtrays on each
sidewall, press down
on the tabs inside and
pull out.
Don’t put papers and other things that burn into your ashtrays.
If you do,
cigarettes or other smoking materials could set them on fire, causing
damage.
2-46

Downloaded from www.Manualslib.com manuals search engine Englne Coolant Temperature Gage
Standard Cluster Digital Cluster
If you have the standard cluster, you have a gage that shows the engine
coolant temperature. If the gage pointer moves to the
“H” (red) side, 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.
If you have
a digital cluster, a box around the temperature symbol will also
flash when your engine is too hot.
In “Problems on
the Road,” this manual explains what to do. See “Engine
Overheating”
in the Index.
2-5 8

Downloaded from www.Manualslib.com manuals search engine 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 km/h) 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.
Parking on Hills
You really should not park your vehicle, with a trailer attached, on a hill. If
something goes wrong, your rig could start to move. People can be injured,
and both your vehicle and the trailer can be damaged.
But if
you ever have to park your rig on a hill, here’s how to do it:
1. Apply your regular brakes, but don’t shift into PARK (P) yet. Turn your
wheels into the curb when facing downhill and away from the curb
when facing uphill.
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release the regular brakes until the
chocks absorb the load.
4. Reapply the regular brakes, Then apply your parking brake, and shift to
5. Release the regular brakes.
PARK (P).
When You Are Ready to Leave After Parking on a Hill
1. Apply your regular brakes and hold the pedal down while you:
Start your engine;
Shift into a gear; and
0 Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
4-32

Downloaded from www.Manualslib.com manuals search engine Engine Overheating
If Steam Is Corning From Your Engine
-
8
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.
5-13

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 steam, 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.
See “Driving on Grades”
in the Index.
If
you get the overheat warning with no sign of steam, try this for a minute
or
so:
1. If you have an air conditioner, turn it off.
2. Turn on your heater to full hot at the highest fan speed and open the
3. If you’re in a traffic jam, shift to NEUTRAL (N); otherwise, shift to the
highest gear while driving
- AUTOMATIC OVERDRIVE (a) or
DRIVE
(D).
window as necessary.
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, push the accelerator until the engine speed is
about twice
as fast as normal idle speed. Bring the engine speed back to
normal idle speed after two or three minutes. Now see
if the warning stops.
But then, if you still have the warning, turn @‘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.

Downloaded from www.Manualslib.com manuals search engine How to Add Coolant to the Coolant Recovery Tank
If you haven’t found a problem yet, but the coolant level isn’t at ADD , add
a
50/50 mixture of clean water (preferably distilled) and a proper antifreeze
at the coolant recovery tank. (See “Engine Coolant” in the Index
for more
information about the proper coolant mix.)
NOTICE:
In cold weather, water can freeze and crack the engine, radiat\
or,
heater core and other parts. Use the recommended coolant.
I I
When the coolant in the coolant recovery tank is at ADD , start your
vehicle.
If
the overheat warning continues, there’s one more thing you can try. You
can add the proper coolant
mix directly to the radiator, but be sure the
cooling system is
cool before you do it.
5-14