1994 CHEVROLET BLAZER heating

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 Safety Restraints
This section tells you how to use your seats and safety restraints
properly.
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.
Section 6 - Service & Appearance Care
Here the manual tells you how to keep your vehicle running
properly and looking good.
Section 7- Scheduled Maintenance Services
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 your GM division 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.
1v

Downloaded from www.Manualslib.com manuals search engine NOTICE:
When using the accessory power outlet, maximum electrical load
should not exceed
8 amps. Always turn off any electrical
equipment when not in use. Leaving electrical equipment on for \
extended periods can drain your battery.
Cigarette Lighter/Ashtrays
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 overload, damaging the lighter and the heating element.
r
To remove the front
ashtray, pull on the
front of it and push
down at the same
time.
To remove the smaller ashtrays on both sides of the back seat, press down
on the tabs inside and pull.
Don’t put papers and other things that
burn into your ashtray. If you do,
cigarettes or other smoking materials could set them on fire causing
damage.
2-57

Downloaded from www.Manualslib.com manuals search engine Engine Coolant Temperature Gage
Standard Cluster Digital Cluster
If you have a standard cluster, this gage shows the engine coolant
temperature.
If the gage pointer moves into the red 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.
If you have a digital cluster, a box around the temperature symbol will also
flash and a chime will sound when your engine is too hot.
Hot Coolant Can Burn you Badly! In Problems On The Road, this manual
explains what to do. See “Engine Overheating
” in the Index.
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Downloaded from www.Manualslib.com manuals search engine Temperature Lever:
The lever on the left of the system lets you select the temperature of the air
flowing into your vehicle. Move the lever up for warmer air. Move the lever
down for cooler air.
Mode Function Lever:
The lever on the right of the system can be moved to three different heating
functions.
DEFROST: This setting operates the defroster. Most of the air comes out
near the windshield,
with some going to the floor vents and side window
defrost vents. Use this when you get fog or ice on the windshield.
HTR (Heater): Most of the air comes out near the floor. The rest comes out
from the defroster vents under the windshield and at the front side windows.
This
is best for cold weather.
VENT: The air comes out at the vents on your instrument panel and at your
front side windows.
Heating/Air Conditioning Controls
If your vehicle has air
conditioning, your
heating/air
conditioning controls
will look like this.
Before using
your vehicle’s air conditioning, open the windows to clear me
vehicle of hot air.
Fan Lever:
The lever at the top has four positions. To increase the air flow, move the
lever toward
HI. To decrease the air flow, move it toward LO.
Temperature Lever:
The lever on the left of the system display lets you select the temperature of
the air flowing into your vehicle. Move the lever up for warmer air. Move
the lever down for cooler
air.
Mode Function Lever:
The lever on the right of the system can be moved to seven different heating
and air conditioning functions.
3-4

Downloaded from www.Manualslib.com manuals search engine DEFROST This setting operates the defroster. Most of the air comes out
near
the windshield, with some going to the floor vents and side window
defrost vents.
Use this when you get fog or ice on the windshield.
HTR (Heater): Most of the air comes out near the floor. The rest comes out
from the defroster vents under the windshield and at
your front side
windows. This is best for cold weather.
VENT The air comes out at the vents on your instrument panel and at your
front side windows.
BI-LEV A/C: With this, outside air comes in through the heater floor vent
and the instrument panel vents. This setting is useful
in cool weather with
bright sunlight.
NORM A/C: This setting cools the outside air. If you first use MAX, use
NORM as soon as the vehicle has cooled down, so outside air will be going
through your vehicle.
MAX A/C: This cools the air the fastest. Move the other lever all the way to
Cold.
MAX lets in only a little air from the outside. You can use MAX at
first when it’s really hot outside and you need to cool off quickly.
NOTICE:
If vehicle is parked with function lever in MAX A/C position
and on an incline with the right side lower than the left, t\
hen water may leak into the passenger compartment in an unusually
heavy rain.
J
OFF: The blower is off, but air still will come from outlets at the front of
your vehicle. The system
will try to keep the air at the chosen temperature.
Engine Coolant Heater (Engine Block Heater)
If you use the optional engine coolant heater before starting your engine,
your heating system
will produce warmer air faster, to heat the passenger
compartment
in cold weather. See “Engine Coolant Heater” in the Index.
Rear Window Defogger
If your vehicle has this option the rear window will have lines running
across the glass. These lines heat your window.
For best results, clear the window
of as much snow or ice as possible first.
3-5

Downloaded from www.Manualslib.com manuals search engine 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.
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.
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 kdh) to reduce the possibility of engine and transmission overheating.
If you have an automatic transmission,
you should use “D” when towing a
trailer. Operating your vehicle in “D” when towing a trailer will minimize
heat buildup and extend the
life of your transmission. Or, if you have a
manual transmission with
fifth gear, it’s better not to use fifth gear, just
drive in fourth gear (or, as
you need to, a lower gear).
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 “P” (Park) yet, or into
gear for a manual transmission.
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.
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Downloaded from www.Manualslib.com manuals search engine Here you’ll find what to do about some problems
Hazard Warning Flasher
...................
Other Warning Devices ....................
Jump Starting ............................
Towing Your Vehicle ......................
Engine Overheating .......................
Engine Fan Noise .........................
If a Tire Goes Flat ........................
Changing a Flat Tire ....................
If You’re Stuck: In Sand. Mud. Ice or Snow ....
Seciion
that can occur on
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the road .
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5-2
.... 5-3
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... 5-11
... 5-18
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5-1

Downloaded from www.Manualslib.com manuals search engine Engine Overheating
You will find a coolant temperature gage on your vehicle's instrument
panel.
lf Steam /s Coming From Your 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.
5-11