cooling CHEVROLET BLAZER 1998 2.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine EndgateLiftgate
It can be dangerous to drive with the rear
window, endgate or liftgate open because carbon
monoxide
(CO) gas can come into your vehicle.
You can’t see or smell
CO. It can cause
unconsciousness and even death.
If you must drive with the rear window, endgate
or liftgate open or
if electrical wiring or other
cable connections must pass through the seal
between the body and the
rear window, endgate
or liftgate:
Make sure all windows are shut.
lhrn the fan on your heating or cooling
system to its highest speed with the setting on
VENT. That will force outside air into your
vehicle. See
64C~~0~ Controls’’ in the Index.
instrument panel, open them all the way.
If you have air outlets on or under the
See “Engine Exhaust” in the Index.
Endgate-Mounted Spare
If your vehicle has an endgate-mounted spare tire
carrier, you must move the carrier arm out
of the way to
open the glass.
Here’s how to move the arm:
1. Squeeze the release handle to free the carrier arm.
2. Swing the carrier arm away from the endgate. You
may need to give it a slight tug.
3. To latch the carrier arm, swing it toward the endgate.
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Downloaded from www.Manualslib.com manuals search engine Comfort Controls Temperature Knob
With this system, you can control the heating, cooling
and ventilation in your vehicle.
Standard Climate Control System
I' II
Fan Control
The knob on the left side of the heating system control
panel controls the fan speed.
To increase airflow, move
the
knob to the right. To decrease airflow, move it to
the left.
The middle knob on the control panel lets you select the
relative temperature
of the air flowing into the passenger
area
of your vehicle. Move the knob to the right toward
the red area for warmer air. Move the
knob to the left
toward the blue area for cooler air.
Mode Knob
The right knob on the control panel allows you to
choose the direction of air delivery.
OFF: This setting turns the system off. Some outside air
will still enter the vehicle whenever the vehicle is
moving forward.
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.
This setting directs most of the air through the
instrument panel vents and
a small amount through the
floor vents.
A/C: This setting cools the air entering your vehicle and
directs most of the air through the instrument panel
vents and
a small amount through the floor vents.
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Downloaded from www.Manualslib.com manuals search engine Temperature Knob Mode Knob - Automatic Operation
The middle knob on the control panel lets you select the
desired air temperature in your vehicle. This knob will
allow
you to adjust the interior air temperature
independently
of the function knob setting. Move the
knob to the right toward
82 for warmer air. Move the
knob to the left toward 66 for cooler air.
Full Hot: If you turn the temperature knob past 82°F
(28”C), the system will go into the
“full hot” mode. The
system will remain at that maximum heating setting and
the fan will blow at the speed the fan knob is set to. If
the fan is in AUTO, it will run at
full speed.
Full Cold: If you turn the temperature knob past 66°F
(1 9”C), the system will go into the “full cold” mode.
The system will remain at that maximum cooling setting
and the fan will blow at the speed the fan knob is set to. \
If the fan is in AUTO, it will run at
full speed.
Choosing either maximum setting will
not cause the
system to heat or cool any faster. The right knob
on the control panel allows you to
choose the direction of air delivery. When the system is
set for automatic operation, sensors will control the air
delivery mode. Air will come primarily from the floor or
instrument panel outlets, with some air directed to the
windshield
to prevent fogging.
When the system is
in AUTO mode, the air conditioning
light
will turn on, and the recirculation and outside air
lights turn off. With the system in full auto control (both
the fan and mode knobs in AUTO), you still have the ability to override any function. However, continually
overriding the outside air or the A/C compressor will
limit the ability of the system
to cool the
vehicle quickly.
If
you push a button for a function which is not
available,
the light next to that button will flash three
times
to alert you that it’s not available.
To find your comfort zone, start with the
74°F (23°C)
setting and allow about 20 minutes for the system to
adjust the temperature
if necessary.
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Downloaded from www.Manualslib.com manuals search engine w.
+H BLEND: Airflow is divided equally between the
heater floor outlet and the windshield defroster outlets.
The air conditioning compressor may run to dehumidify
the air to prevent window fogging.
DEFROST This setting directs most air through
the windshield defroster outlets and some through
the
heater outlets. The air conditioning compressor may run
to dehumidify the air to prevent window fogging.
a OUTSIDE AIR: Press this button to force the
system to use outside air. Press it again to close off the
outside air.
Pressing the OUTSIDE AIR button
will cancel the
RECIRCULATION button.
RECIRCULATION: Press this button to limit
the amount of fresh air entering your vehicle. This is
helpful when you are trying to limit odors entering your
vehicle. In the AUTO mode, the system
will use
recirculation as necessary
to cool the air. Pressing the
recirculation button
will change the operation to a
manual mode and the air will recirculate non-stop. Press
this button again to turn off the recirculation feature. RECIRCULATION may be selected
with the fan control
in OFF to limit odors, outside
air and dust from entering
your vehicle.
Pressing the RECIRCULATION button
will cancel the
OUTSIDE AIR button.
A/C: Press this button to turn the air conditioning
on and
off. The system will cool and dehumidify the air
inside the vehicle when the A/C light
is on.
Air conditioning
will be automatically disabled when
the outside temperature drops below a level which air
conditioning is ineffective.
Remember that
in order for the automatic system to perform
well,
it needs A/C to provide cooling performance.
3-6

Downloaded from www.Manualslib.com manuals search engine 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 to the left. 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 to the left.
On vehicles equipped with the Electronic Climate
Control system, this same performance can be achieved
as long as the A/C is enabled and the outside air button
is not active.
Heating
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.
The heater works best if you keep your windows closed
while using it. On cold days,
use HEATER with the
temperature knob turned
to the right. 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.
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.
3-7

Downloaded from www.Manualslib.com manuals search engine Driving in Water
Light rain causes no special off-road driving problems.
But heavy rain
can mean flash flooding, and flood
waters demand extreme caution.
Find out how deep the water is before
you drive through
it. If it’s deep enough to cover your wheel hubs, axles or
exhaust pipe, don’t try it
-- you probably won’t get
through. Also, water that deep can damage your axle
and other vehicle parts.
If the water isn’t too deep, then drive through
it slowly.
At fast speeds, water splashes
on your ignition system
and your vehicle can stall. Stalling can also occur
if you
get your tailpipe under water. And, as long as your
tailpipe is under water, you’ll never be able to start your
engine. When you go through water, remember that
when your brakes get wet,
it may take you longer
to stop.
’ A CAUTION:
Driving through rushing water can be dangerous.
Deep water can sweep your vehicle downstream
and you and your passengers could drown.
If it’s
only shallow water, it can still wash away the
ground from under your tires, and you could lose
traction and roll the vehicle over. Don’t drive
through rushing water.
~
See “Driving Through Water” in the Index for more
information on driving through water.
After Off-Road Driving
Remove any brush or debris that has collected on the
underbody, chassis or under the hood. These
accumulations can be
a fire hazard.
Aftc- ~ lperation in mud or sand, have the brake linings
cleaned and checked. These substances can cause
glazing and uneven braking. Check the body structure,
steering, suspension, wheels, tires and exhaust system
for damage. Also, check the fuel lines and cooling
system for any leakage.
4-26

Downloaded from www.Manualslib.com manuals search engine 0 Keep your vehicle in good shape. Check all fluid
levels and also the brakes, tires, cooling system and
transmission. These parts can work hard
on
mountain roads.
Know how to go down hills. The most important
thing to know is this: let your engine do some
of the
slowing down. Shift to a lower gear when
you go
down a steep or long hill.
If you don’t shift down, your brakes could get so
hot that they wouldn’t work well. You would then
have poor braking or even none going down
a
hill. You could crash. Shift down to let your
engine assist your brakes on a steep
, downhill slope.
0
0
A CAUTION:
Coasting downhill in NEUTRAL (N) or with the
ignition off
is dangerous. Your brakes will have to
do all the work
of slowing down. They could get
so hot that they wouldn’t work well. You would
then have poor braking or even none going down
a hill. You could crash. Always have your engine
running and your vehicle in gear when you
go downhill.
Know how to go uphill. You may want
to shift down
to a lower gear. The lower gears help cool your
engine and transmission, and
you can climb the
hill better.
Stay in your own lane when driving on two-lane
roads in hills or mountains. Don’t swing wide or cut
across the center
of the road. Drive at speeds that let
you stay in your own lane.
e As you go over the top of a hill, be alert. There could
be something in your lane, like a stalled car or
an accident.
4-35

Downloaded from www.Manualslib.com manuals search engine Driving with a Trailer
I
A GA ‘TION:
If you have a rear-most window open and you
pull a trailer with your vehicle, carbon monoxide
(CO) could come into your vehicle. You can’t see
or smell
CO. It can cause unconsciousness or
death. (See “Engine Exhaust” in the Index.) To
maximize your safety when towing
a trailer:
0 Have your exhaust system inspected for
leaks, and make necessary repairs before
starting on your trip.
Keep the rear-most windows closed.
0 If exhaust does come into your vehicle
through a window in the rear or another
opening, drive with your front, main
heating or cooling system on and with the
fan
on any speed. This will bring fresh,
outside air into your vehicle.
Do not use
MAX AfC because it only recirculates the
air inside your vehicle. (See “Comfort
Controls” in the Index.) Towing a
trailer requires
a certain amount of experience.
Before setting out for the open road, you’ll want to get
to know your rig. Acquaint yourself with the
feel of
handling and braking with the added weight of the
trailer. And always keep in mind that the vehicle you
are driving is now a
good deal longer and not nearly as
responsive as your vehicle is by itself.
Before
you start, check the trailer hitch and platform
(and attachments), safety chains, electrical connector,
lamps, tires and mirror adjustment.
If the trailer has
electric brakes, start your vehicle and trailer moving and
then apply the trailer brake controller by hand to be sure
the brakes are working. This lets you check your
electrical connection at the same time.
During your trip, check occasionally to be sure that the
load
is secure, and that the lamps and any trailer brakes
are still working.
Following Distance
Stay at least twice as far behind the vehicle ahead as you
would when driving your vehicle without a trailer. This
can help you avoid situations that require heavy braking
and sudden turns.
4-47

Downloaded from www.Manualslib.com manuals search engine 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.
Maintenance When Trailer Towing
Your vehicle will need service more often when you’re
pulling
a trailer. See the Maintenance Schedule for more
on this. Things that are especially important
in trailer
operation are automatic transmission fluid (don’t
overfill), engine oil, axle lubricant, belt, cooling system
and brake adjustment. Each
of these is covered in this
manual, and the Index will help
you find them quickly.
If
you’re trailering, it’s a good idea to review these
sections before you start your trip.
Check periodically to see that all hitch nuts and bolts
are tight.
Trailer Wiring H-T--- ess
The light duty trailer wir is a six-wire harness
assembly. The optional heavy-duty trailer wiring
is an
eight-wire harness assembly. The harnesses are stored under the vehicle, along the passenger-side frame
crossmember on two-door vehicles or on the driver’s side
corner frame rear crossmember on four-door vehicles. The
heavy-duty trailer wiring has a 30-amp feed wire with
an
inline fuse located by the junction block. See
“Fuses and Circuit Breakers” in the Index. Both
harnesses have
no connector and should be wired by a
qualified electrical technician. The technician
can use
the following color code chart when connecting the
wiring harness to your trailer.
0
0
0
0
0
0
0
0
Dark Blue: Use for electric trailer brakes or
auxiliary wiring.
Red: Use for battery charging; it connects to the
starter solenoid (eight-wire harness only).
Light Green: Back-up lamps (eight-wire
harness only).
Brown: Taillamps and parking lamps. Yellow: Left stoplamp and turn signal.
Dark Green: Right stoplamp and turn signal.
White (Heavy Gage): Ground wire.
White (Light Gage): Auxiliary stoplamp.
Securely attach the harness to the trailer, then tape or
strap
it to your vehicle’s frame rail. Be sure you leave
it loose enough
so the wiring doesn’t bend or break,
but not
so loose that it drags on the ground. Store the
harness in its original place. Wrap the harness together
and tie it neatly
so it won’t be damaged.

Downloaded from www.Manualslib.com manuals search engine When you decide it’s safe to lift the hood, here’s what
you’ll see:
The coolant level should be at least up to the
ADD mark. i
A. Coolant Recovery Tank
B. Radiator Pressure Cap
C. Engine Fan
If the coolant inside the coolant recovery tank is boiling,
don’t do anything else
until it cools down.
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.
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