1994 CHEVROLET ASTRO PASSENGER instrument panel

Downloaded from www.Manualslib.com manuals search engine Heating System
If your vehicle does
conditioning, this is
what your heating system will look like.
I not have air
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
The left lever 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.
Function Lever
The right lever can be moved to five 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 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
between the heater vents and defroster vents. The lever can be positioned
anywhere between to adjust proprotion of air coming through. Adjust the
temperature lever for warmer or cooler air.
BLEND (Position 2): With this setting, the heated outside air comes out
between the vents and heater vents. The lever can be positioned anywhere
between to adjust proprotion of air coming through. Adjust the temperature
lever for warmer
or cooler air.
3-4

Downloaded from www.Manualslib.com manuals search engine Heating/Air Conditioning System
If your vehicle has air conditioning, your heating/air conditioning system
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
The left lever 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.
Function Lever
The right lever can be moved to four 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.
BLEND: With this setting, the heated outside air comes out between the
heater vents and defroster vents, with some air coming through the side
vents. Adjust the temperature lever for warmer or cooler 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.
3-5

Downloaded from www.Manualslib.com manuals search engine 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.
Rear Heater
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.
Rear Air Conditioning
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.
3-6

Downloaded from www.Manualslib.com manuals search engine If your vehicle has rear air conditioning, setting it on LOW 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 recirculate 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
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.
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.
I 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.
I
3-7

Downloaded from www.Manualslib.com manuals search engine 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.
Passing
You’ll need more passing distance up ahead when you’re towing a trailer.
And, because you’re a good deal longer, you’ll need to go much farther
beyond the passed vehicle before you can return to your lane. \
Backing Up
Hold the bottom of the steering wheel with one hand. Then, to move the
trailer to the left, just move that hand to the left.
To move the trailer to the
right, move your hand to the right. Always back up slowly and, if possible,
have someone guide you.
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 km/h) to reduce the possibility of engine and transmission overheating.
4-28

Downloaded from www.Manualslib.com manuals search engine NOTICE:
If you try to do your own service work without knowing enough
about it, your vehicle could be damaged.
The 8th digit of your Vehicle Identification Number (VTN) shows the code
letter for your engine. You will find the VIN at the top left
of your
instrument panel. (See “Vehicle Identification Number”
in the Index.)
Use regular unleaded gasoline rated at
87 octane or higher. With the
4.3L (Code
W) engine, use premium unleaded gasoline rated at 9 1 octane or
higher for high power performance, when towing a trailer or with a high
payload requirement. But when operating with a light load as a normal
condition, you may
use middle grade or regular unleaded gasolines.
The gasoline
you use should meet specifications ASTM D48 14 in the U.S.
and CGSB 3.5-92 in Canada. These fuels should have the proper additives,
so you should not have to add anything to the fuel.
In the U.S. and Canada, it’s easy to be sure
you get the right kind of
gasoline (unleaded). You’ll see “UNLEADED” right on the pump. And only
unleaded nozzles will fit into your vehicle’s filler neck.
Be sure the posted octane is at least
91 for premium, 89 for middle grade
and
87 for regular. If the octane is less than 87, you may get a heavy
knocking noise when you drive. If it’s bad enough, it can damage your
engine.
If you’re using fuel rated at 91 octane or higher and you still hear heavy
knocking, your engine needs service. But don’t worry if
you hear a little
pinging noise when you’re accelerating or driving up a hill. That’s normal,
and you don’t have
to buy a higher octane fuel to get rid of it. It’s the heavy,
constant knock that means
you have a problem.
What about gasoline with blending materials that contain oxygen \
(oxygenates), such as MTBE or alcohol?
MTBE is “methyl tertiary-butyl ether.” Fuel that is no more than
15% MTBE is fine for your vehicle.
6-3

Downloaded from www.Manualslib.com manuals search engine Engine Cover
In order to replace your air cleaner filter, you will have to remove your
engine cover. It is inside your vehicle behind the instrument panel
extension.
To Remove the Engine Cover:
1. Move both front seats as far back as they will go.
-1 2. Remove the
instrument panel
extension by
removing the two
screws and two
nuts.
3. The screws are
on each side at
the top
of the
extension. The
nuts are on the
bottom
of the
extension.
6-15

Downloaded from www.Manualslib.com manuals search engine 10. Remove the two screws
at the
engine cover
using
a long
handled screwdriver. The
screws are
not
supposed to come
out of the cover,
only from the
front of dash.
When removing the cover, be careful
not to damage the instrument panel or
the trim.
11. Grasp the bottom
of the cover and
slide it
backwards. Then,
lift
it up and out
of the vehicle.
To Install the Engine Cover:
1. Lift the engine cover into the vehicle and slide it all the way forward.
Make sure the rubber seal is over the latches.
2. Install the two screws at the engine cover. Do not tighten the screws all
the way.
3. Press down on each of the two latches at the bottom of the cover. Make
sure they are secure.
4. Tighten the two screws at the engine cover.
5. Turn the bracket into position and install the bolt. Tighten the nut at the
other end
of the bracket.
6. Put the heater duct over the engine cover studs. Push up on the duct
gently until it snaps into place.
7. Reconnect the electrical connector for the cigarette lighter.
6- 18