air conditioning CHEVROLET ASTRO CARGO VAN 1995 2.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine Comfort Controls & Audio Systems
Section
In this section you’ll find out how to operate the comfort control systems
and audio systems offered with your vehicle. Be sure
to read about the
particular system supplied with your vehicle.
Comfort Controls
Heater Controls
If your vehicle does
not have air
conditioning, your
heater controls will
look like this.
Fan Lever
- The top lever has four positions. To increase the air flow,
move the lever toward
HIGH. To decrease the air flow, move it toward OFF.
Temperature Lever - This lever is below the fan lever and selects the
temperature
of the air flowing into your vehicle. Move the lever up for
warmer air. Move the lever down for cooler air.
Function Lever
- This lever is below the fan lever and can be moved to
five different functions.
3-1

Downloaded from www.Manualslib.com manuals search engine DEFROST-The setting with the defrost symbol operates the defroster. Most
of the air comes out near the windshield, with some going to the floor vents and
front side windows. 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.
BLEND (Position
1) - With this setting, the heated outside air comes out
both
the heater vents and defroster vents. The lever can be positioned
anywhere between to adjust the proportion of air coming through each
vent.
Adjust the temperature lever for warmer or cooler air.
BLEND (Position
2) - With this setting, the heated outside air comes out
both the instrument panel vents and heater vents. The lever can be
positioned anywhere between
to adjust the proportion of air coming through
each
vent. Adjust the temperature lever for warmer or cooler air.
Heater/Air Conditioning Controls
If your vehicle has air
conditioning, your
heatinghir
conditioning controls
will
look like this.
Before using your vehicle’s air conditioning, open the windows to clear the
vehicle
of hot air. Close the windows when using the system.
Fan Lever- The top lever has five positions.
To increase the air flow, move the
lever toward
HIGH. To decrease the air flow, move the lever toward OFF.
Temperature Lever
- This lever is below the fan lever and selects the
temperature of the air flowing into your vehicle. Move the lever up for
warmer air. Move the lever down for cooler air.
Function Lever
- This lever is below the fan lever and can be moved to
seven different functions.
DEFROST
- The setting with the defrost symbol 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. The A/C compressor may operate in this setting to
dehumidify the air.
3-2

Downloaded from www.Manualslib.com manuals search engine BLEND - With this setting, the heated outside air comes out both the
heater
vents and defroster vents, with some air coming through the side
window vents. Adjust the temperature lever
for warmer or cooler air. This
setting
is useful for cold weather with a large number of passengers or very
humid conditions
to help keep the windshield clear. The A/C compressor
may operate in this setting
to dehumidify the air.
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. The air
conditioner will not run. Adjust the temperature lever for warmer or cooler air.
BI-LEV A/C - With this, outside air comes out through the heater floor
vent and the instrument panel vents. If you move your temperature control
lever between cold and hot, cooler air
will come out of the upper vents
while warmer air comes
out of the floor vent. This setting is useful in cool
weather with bright sunlight.
NORM A/C - This setting cools the outside air. If you first used MAX
A/C, use NORM A/C
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 A/C lets in only a little air from the outside. You can use MAX A/C
at first when
it's really hot outside and you need to cool off quickly.
When
the air conditioning, defrost or BLEND is on, you may notice a slight
increase or decrease in engine speed, due
to compressor operation.
Engine Coolant Heater (Option)
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 Heater (Option)
You may have the
optional rear heater.
The three speed fan
switch is above the
radio. Slide
the lever
toward
HI for warmer
air in the rear area.
Move the switch to
OFF to turn the
system off.
3-3

Downloaded from www.Manualslib.com manuals search engine Rear Air Conditioning (Option)
You may have rear air
conditioning. The rear
air conditioning
switch
is located
above the radio at the
top
of the instrument
panel. Slide the lever
toward
HI for cooler
air in the rear
area.
Slide the lever to OFF
to turn the system off.
If your vehicle has rear air conditioning, setting it on LO may enhance front
A/C performance by allowing trapped refrigerant in rear lines to circulate.
The system will only send cooled air if the front system is on. It can still
be
used to circulate air, even if the front system is off.
Before
using the rear air conditioning, open the windows to clear the vehicle
of hot air. Close the windows when using the system.
Rear Window Defogger (Option)
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 before
using the
rear window defogger.
To
turn on the rear
window defogger, find
the switch marked
REAR DEFOG on
your instrument panel
to the left of the
steering column. Press
the top
of this switch
until the light in the
switch comes on, then
release it.
The rear window defogger will only work when the ignition switch
is in the
RUN position.
3-4

Downloaded from www.Manualslib.com manuals search engine You can turn the defogger off at any time by pressing the bottom of the switch.
The defogger will shut itself off after several minutes
so that the glass does not
get too hot. If the window still isn’t clear, turn the defogger on again.
NOTICE:
Scraping the inside of your rear window could cut and damage
the defogger. Your warranty would not cover this damage. And
don’t put decals there, you might have to scrape them
off.
Ventilation System
Your vehicle’s ventilation system supplies outside air to the inside of your
vehicle when it is moving. With the side windows closed, air will flow into
the front air inlet grilles at the base of
the windshield, through the vehicle
and out the rear air exhaust valves. Outside air will also enter the vehicle
when the heater or the air conditioning fan is running.
Venfilation Tips
0 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.
0 When you enter a vehicle in cold weather, turn the blower fan to HIGH for a
few moments before driving
off. This helps clear the intake ducts of snow and
moisture, and reduces the change
of fogging the inside of your windows.
0 Keep the air path under the front seats clear of objects. This helps air to
circulate throughout your vehicle.
3-5

Downloaded from www.Manualslib.com manuals search engine You will find air vents
in the center and on
the sides of your
instrument panel.
You can move the vents to direct the flow
of air, or close the vents
altogether. When you close a vent, it will increase the flow of air coming out
of any vents that are open.
If your vehicle doesn’t have air conditioning, there is an air vent in the
passenger-side kick panel below the instrument panel. The vent has a
handle to open and close it.
Audio Systems
Your Delco@ audio system has been designed to operate easily and give
years of listening pleasure. But you will get the most enjoyment out of it if
you acquaint yourself with it first. Find out what your Delco@system can do
and how to operate all its controls, to be sure you’re getting the most out
of
the advanced engineering that went into it.
Setting the Clock (ETP AM Radio)
To set the clock:
1. Press the SET button.
2. Within 5 seconds, press and hold MINS until the correct minute
3. Press and hold HRS until the correct hour appears on the display.
To display the clock with the ignition off, push the upper knob. The time
will be displayed for a few seconds.
appears on the
display.
Setting the Clock (Audio Systems with AWFM Stereo)
To set the clock:
1. Press the SET button. The radio may be on or off.
2. Within 5 seconds, press and hold either SEEK button until the correct
minute appears on the display.
3. Press and hold SCAN until the correct hour appears on the display.
3-6

Downloaded from www.Manualslib.com manuals search engine For more information on vehicle storage, contact your dealer’s service
department, or write to:
Adistra Corporation
17 1 Hamilton Street
Plymouth, MI
48 170
In Canada, write to:
General Motors of Canada, Limited
Customer Services Department
Oshawa, Ontario
Ll J 5Z6
Fluid Leak Check
After the vehicle has been parked for awhile, inspect the surface beneath the
vehicle for water, oil,
fuel or other fluids. Water dripping from the air
conditioning system is normal. If you notice fuel leaks or fumes, the causes
should be found and corrected at once.
Bulb Replacement
Before replacing any bulbs, make sure all lights are off and the vehicle is
not running.
Sealed Beam Headlamps
1. Open the hood.
2. Remove the four
screws from the
headlamp bezel.
Pull the bezel out
so you can see
the parkingkurn
signal sockets.
3. Press the tab and turn the socket counterclockwise to remove the socket
from the bezel. If the socket does
not have a tab, turn the socket
counterclockwise. Set the bezel aside.
4. Remove the four retainer screws and the retainer.
6-33

Downloaded from www.Manualslib.com manuals search engine Air Conditioning
Every now and then have your dealership check your air conditioning
system
to be sure it has not lost any cooling ability. If you think the system
is not working properly, have your dealership check it out as soon as
possible.
The air conditioning will not work when the temperature
is below 40°F
(4°C).
Lock Cylinders
To be sure your locks operate properly, they must be lubricated.
Refer
to the Maintenance Schedule to determine how often to lubricate them
and what type
of lubricant to use.
You should not use penetrating oils because they could wash out the factory
installed lubricant and cause the lock to bind. De-icers which contain
alcohol could also wash away the lubricant,
so be sure to lubricate the lock
after using a de-icer of this type.
Exhaust System
To help prevent damage to your exhaust system, do not continue to drive
your vehicle if you notice:
0 Engine misfiring
Loss of performance
Exhaust system components hanging lower than normal.
Loud exhaust system noises.
Other unusual operating conditions
Have your engine and exhaust system serviced regularly.
Three-way Catalytic Converter
Your vehicle’s three-way catalytic converter is designed to reduce the
pollutants in your vehicle’s exhaust. Use only unleaded fuel in your vehicle.
If you use leaded fuel, you could damage your three-way catalytic converter
and other engine components.
Engine Control Module System
This system has an oxygen (02) sensor that helps keep your engine’s
air-fuel mixture at a proper level. Use only unleaded fuel in your vehicle. If
you
use leaded fuel, you could damage your oxygen (02) sensor and affect
your vehicle’s emissions.
6-40

Downloaded from www.Manualslib.com manuals search engine NAME
HTR A/C
RADIO
ECM B
ECM I
PWR WDO
AIR BAG
WIPER
BRAKE
DRL** PWR
MIRRORS*
TRAILER*
CIRCUITS
PROTECTED
Front Heater &
Air
Conditioning
Radio
Engine Control
Module
Engine Control Module
Power
Windows
Air Bag
Windshield Wiper
Anti-Lock
Brake System,
Speedometer,
Cruise Control
Canadian Daytime
Running Lamps
rower Mirror
Trailer Wiring
Harness
FUSE
20 Amp
15 Amp
15 Amp
10 Amp
CIRCUIT
BREAKER
30 Amp
10 Amp
25 Amp
15 Amp
10 Amp
3 Amp
30 Amp
*In-line fuse
**Canada
only
***In-line fuse (certain models)
6-67

Downloaded from www.Manualslib.com manuals search engine Service Replacement Part and Filter
Recommendations
ENGINE (VIN)
OIL FILTER
AIR CLEANER FILTER
PCV VALVE
SPARK PLUGS* FUEL FILTER
RADIATOR CAP 4.3L (W)
PF52
A1163C
cv774c
CR43TSM
GF48
1
RC27
*Use copper-cored resistor type spark plugs.
Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same. If the air conditioning
system in your vehicle needs refrigerant, be sure
the proper refrigerant is
used. If you’re not
sure, ask your GM dealer. For additional information, see
your “Warranty and Owner Assistance Information” booklet.
Refrigerant should be added only by a qualified
A/C technician.
Air Conditioning Refrigerant Capacity
TYPE
R-l34a
R-134a
SYSTEM
C-60* *
C-69***
QUANTITY*
2.00 lbs. (.91 kg)
3.00 lbs. (1.36 kg)
*All Quantities
Are Approximate
**Front A/C Only
***Front
& Rear A/C
NOTICE:
R-134a refrigerant is not compatible with R-12 refrigerant in
an air conditioning system. R-12 in an R-134a system
will cause
compressor failure, refrigerant oil sludge, or poor air
conditioning system performance.
6-68