1996 CHEVROLET BLAZER heater

Downloaded from www.Manualslib.com manuals search engine Engine Coolant Heater (Option)
In very cold weather, 0°F
(- 1 8 O 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 1 10-volt AC outlet.
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I
A 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. After you’ve used the coolant heater, be sure to
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.
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Downloaded from www.Manualslib.com manuals search engine MAX A/C: This setting provides maximum cooling
with the
least amount of work. MAX A/C recirculates
much
of the air inside your vehicle so it cools quickly.
A/C: This setting cools the air entering your vehicle and
directs it through the instrument panel outlets.
+' BI-LEVEL A/C: Air is delivered through the
heater floor outlets as well as the instrument panel
outlets.
/J VENT: This setting directs airflow through the
instrument panel outlets. The air conditioning
compressor is
not working when VENT is selected.
+' HEATER: This setting directs warmed air through
the heater floor outlets and windshield defroster outlets.
+, BLEND: Airflow is divided equally between the
heater floor outlet and
the windshield defroster outlets.
'sw DEFROST This setting directs most air through
the windshield defroster outlets and some through the
heater outlets.
I,.
+.
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Air Conditioning
On hot days, open the windows long enough to let hot
inside air escape. This reduces the time it takes
for your
vehicle to cool down. Then keep your windows closed
for the air conditioner
to work its best.
For quick cool-down
on very hot days, use MAX A/C
with the temperature knob turned counterclockwise.
This setting should be used
to keep odors and/or dust
from entering the vehicle. For normal cooling on
hot
days, use A/C with the temperature knob turned
counterclockwise.
On cool but sunny days, use BI-LEVEL
A/C to deliver
warm air to the floor and cooler air to the instrument
panel outlets.
When the air conditioner is
on, you may sometimes notice
slight changes
in your vehicle's engine speed and power.
This is normal because the system is designed to cycle the
compressor
on and off to keep the desired temperature.

Downloaded from www.Manualslib.com manuals search engine Heating
The heater works best if you keep your windows closed
while using it. On cold days, use
HEATER with the
temperature knob turned clockwise.
BLEND is useful in
cool weather when
you have fog or ice on the
windshield or side windows.
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.
I
Ventilation System
For mild outside temperatures when little heating or
cooling
is needed, use VENT to direct outside air
through your vehicle. Airflow is through the instrument
panel outlets.
Your vehicle’s ventilation system supplies outside air to
the inside
of your vehicle when it is moving. When the
vehicle is not moving, you can get outside air to
flow
through by selecting any mode and any fan speed. You
will find air outlets in the center and on the sides
of
your instrument panel.
You can move the outlets to direct the flow of air, or
close the outlets altogether. When you close an outlet, it
will increase the flow
of air coming out of any outlets
that are open.
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Downloaded from www.Manualslib.com manuals search engine Ventilation Tips
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Keep the hood and front air inlet free of ice, snow or
any
other obstruction (such as leaves). The heater
and defroster will work far better, reducing the
chance
of fogging the inside of your windows.
When
you enter a vehicle in cold weather, turn the
blower fan to
HI for a few moments before driving
off. This helps clear the intake ducts of snow and
moisture, and reduces the chance
of fogging the
inside of your windows.
Keep
the air path under the front seats clear of
objects. This helps air
to circulate throughout
your vehicle.
Defogging and Defrosting
On cool, humid days, use BLEND to keep the
windshield and side windows clear.
Use DEFROST to remove fog or ice from the
windshield quickly in extremely humid or cold
conditions. Turn the temperature knob clockwise and move
the fan control toward HI.
Rear Window Defogger (Option)
1
If your vehicle has this option, the rear window will
have lines that warm the glass. For best results, clear the
window of
as much snow or ice as possible before using
the rear window defogger.
To turn on the rear window defogger, find
the switch
marked REAR
DEFOG on your instrument panel below
the headlamp switch. Press ON
until the light in the
switch conles on, then release
it. It will only work if the
ignition switch
is turned to RUN.
3-4

Downloaded from www.Manualslib.com manuals search engine Run your engine only as long as you must. This saves
fuel. When
you run the engine, make it go a little faster
than just idle. That
is, push the accelerator slightly. This
uses less fuel for the heat that
you get and it keeps the
battery charged. You will need a well-charged battery
to
restart the vehicle, and possibly for signaling later on
with your headlamps. Let the heater run for awhile.
Then, shut the engine off and close the window almost
all
the way to preserve the heat. Start the engine again
and repeat this
only when you feel really uncomfortable
from the cold. But
do it as little as possible. Preserve the
fuel as long as you can. To help keep warm, you can get
out
of the vehicle and do some fairly vigorous exercises
every half hour or
so until help comes.
Recreational Vehicle Towing
(Four-wheel Drive Only)
1. Set the parking brake firmly.
2. Place an automatic transmission in PARK (P) or a
manual transmission
in FIRST (1).
3. Firmly attach the vehicle being towed to the tow
vehicle.
Do not tow the vehicle by the rear bumper
bar. Refer to the hitch manufacturer’s instructions.
4. Place the transfer case shift lever in NEUTRAL (N).
Recreational vehicle towing is not recommended for
vehicles with
the optional electronic shift transfer
case or all-wheel drive because the transfer cases
have
no neutral position.
Shifting the transfer case into NEUTRAL (N) can
cause your vehicle to roll even if the transmission
is in PARK (P), for an automatic transmission,
or if your vehicle is in gear, for a manual
transmission. This is because the transfer case
overrides the transmission.
5. Release the parking brake only after the vehicle
being towed is firmly attached to the tow vehicle.
6. Insert the ignition key into the ignition switch and
turn it
one notch forward of the LOCK position. This
places the key
in the OFF position, which unlocks
the steering column while preventing battery drain.
Unlocking the steering column will allow for proper
movement
of the front wheelshires during towing.
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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. Turn off your air conditioner.
2. Turn on your heater to full hot at the highest fan
speed and open the window as necessary.
3. If you’re in a traffic jam, shift to NEUTRAL (N);
otherwise, shift to the highest gear while
driving
-- AUTOMATIC OVERDRIVE (@)
or DRIVE (D) for automatic transmissions. If
you no longer have the overheat warning, you
can drive.
Just to be safe, drive slower for about
10 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 ofthe 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.
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Downloaded from www.Manualslib.com manuals search engine L
The coolant level should be at the ADD mark. 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. Heater and radiator
hoses, and other engine
parts, can be very hot. Don't touch them. If you
do, you can be burned.
Don't run the engine if there is
a leak. If you run
the engine, it could lose all coolant, That could
cause an engine fire, and you could be burned.
Get any leak fixed before you drive the vehicle.
NOTICE:
Engine damage from running your engine
without coolant isn't covered by your warranty,
If there seems to be no leak, start the engine again. See
if
the fan speed increases when idle speed is doubled by
pushing the accelerator pedal down.
If it doesn't, your
vehicle needs service. Turn off the engine.
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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 the
ADD mark, add a 50/50 mixture of clean
water (preferably distilled) and DEX-COOL TM
(orange-colored, silicate-free) antifreeze at the coolant
recovery tank. (See “Engine Coolant”
in the Index for
more kformation
)
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
DEX-COOL TM antifreeze.
1 NOTICE:
In cold weather, water can freeze and crack the
engine, radiator, heater core and other parts. Use the recommended coolant and the proper
coolant mix.
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