change wheel CHEVROLET ASTRO PASSENGER 1994 1.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine All-Wheel Drive (Option) .................. ............... 2-26
Windows
................................................ 2-26
Horn
.................................................... 2-29
Tilt Wheel (Option)
........................................ 2-29
Turn SignaVMultifunction Lever
.............................. 2-30
Turn Signal and Lane Change Indicator
...................... 2-30
Headlight High-Low Beam
............................... 2-32
Windshield Wipers
.................................... 2-32
Windshield Washer
...................................... 2-33
Rear Window WiperNasher
.............................. 2-34
Cruise Control
........................................ 2-35
Lights
................................................. 241
Mirrors
.................................................. 245
SunVisors
............................................. 247
Cigarette LighterlAshtrays
................................... 248
Assist Handles
............................................ 249
Storage Compartments
...................................... 2-50
Instrument Cluster
......................................... 2-51
Warning Lights, Gages and Indicators
....................... 2-55
Indicator Lights
....................................... 2-57
Gages
................................................ 2-61
Luggagecarrier
........................................... 2-65
Trailer Wiring Harness
... ......... ~~ . . 2-66
2-2

Downloaded from www.Manualslib.com manuals search engine Avoid needless heavy braking. Some people drive in spurts - heavy
acceleration followed by heavy braking
- rather than keeping pace with
traffic. This
is a mistake. Your brakes may not have time to cool between
hard stops. Your brakes will wear out much faster if you do a lot
of heavy
braking. If you keep pace with the traffic and allow realistic followin\
g
distances, you will eliminate a
lot of unnecessary braking. That means better
braking and longer brake life.
If your engine ever stops while you're driving, brake normally but don't
pump your brakes. If you do, the pedal may get harder to push down. If
your engine stops, you will still have some power brake assist. But you will
use it when you brake. Once the power assist is used up,
it may take longer
to stop and the brake pedal will be harder to push.
Anti-Lock Brakes (ABS)
Your vehicle has an advanced electronic braking system that can help you
keep it under control. When
you start your vehicle and begin to drive away,
you may hear a momentary motor or clicking noise. This is the
ABS system
testing itself.
Here's how anti-lock works. Let's say the road
is wet. You're driving safely.
Suddenly an animal jumps out in front of you.
You slam on the brakes. Here's what happens with
ABS.
A computer senses that wheels are slowing down. If one of the wheels is
about to stop rolling,
the computer will separately work the brakes at each
front wheel and at the rear wheels. The anti-lock system can change the
brake pressure faster than any driver could. The computer is programmed
to
make the most of available tire and road conditions. You can steer around
the obstacle while braking hard.
4-6

Downloaded from www.Manualslib.com manuals search engine As you brake, your computer keeps receiving updates on wheel speed and
controls braking pressure accordingly.
Remember: Anti-lock doesn’t change the time you need to get your foot up
to the brake pedal. If you get too close to the vehicle in front of you, you
won’t have time to apply your brakes if that vehicle suddenly slows or
stops. Always leave enough room up ahead to stop, even though you have
anti-lock brakes.
To Use Four-wheel Anti-Lock
Don’t pump the brakes. Just hold the brake pedal down and let anti-lock
work for you. You may feel the brakes vibrate, or you may notice some
noise, but this is normal.
Braking in Emergencies
Use your anti-lock braking system when you need to. With anti-lock, you
can steer and brake at the same time. In many emergencies, steering can
help you more than even the very best braking.
Steering
Power Steering
If you lose power steering assist because the engine stops or the system is
not functioning, you can steer but it will take much more effort.
4-7

Downloaded from www.Manualslib.com manuals search engine Steering Tips
Driving on Curves
It’s important to take curves at a reasonable speed.
A lot of the “driver lost control” accidents mentioned on the news happen
on curves. Here’s
why:
Experienced driver or beginner, each of us is subject to the same laws of
physics when driving on curves. The traction of the tires against the road
surface makes it possible for the vehicle to change its path when you turn
the front wheels. If there’s no traction, inertia will keep the vehicle going in
the same direction.
If you’ve ever tried to steer a vehicle on wet ice, you’ll
understand this.
The traction you can get in a curve depends
on the condition of your tires
and
the road surface, the angle at which the curve is banked, and your
speed. While you’re in a curve, speed is the one factor you can control.
Suppose you’re steering through a sharp curve. Then you suddenly
accelerate. Both control systems
- steering and acceleration - have to do
their work where
the tires meet the road. Adding the sudden acceleration
can demand too much of those places. You can lose control.
What should you do if this ever happens? Ease up on the accelerator pedal,
steer the vehicle the
way you want it to go, and slow down.
Speed limit signs near curves warn that you should adjust yo1 speed. Of
course, the posted speeds are based on good weather and roaa conditions.
Under less favorable conditions you’ll want to go slower.
If you need to reduce your speed as you approach a curve, do it before you
enter the curve, while your front wheels are straight ahead.
Try to adjust your speed
so you can “drive” through the curve. Maintain a
reasonable, steady speed. Wait to accelerate until you are out of the curve,
and then accelerate gently into the straightaway.
Steering in Emergencies
There are times when steering can be more effective than braking. For
example, you come over a hill and find a truck stopped
in your lane, or a car
suddenly pulls out from nowhere, or a child darts out from between parked
cars and stops right in front of you. You can avoid these problems by
braking
- if you can stop in time. But sometimes you can’t; there isn’t
room. That’s the time for evasive action
- steering around the problem.
Your vehicle can perform very well
in emergencies like these. First apply
your brakes.
It is better to remove as much speed as you can from a possible
collision. Then steer around the problem, to the left or right depending on
the space available.
4-8

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 Towing Your Vehicle
Try to have a GM dealer or a professional towing service tow your vehicle.
They can provide the right equipment and know how
to tow it without
damage.
If your vehicle has been changed or modified since it was factory-new by
adding aftermarket items like fog lamps, aero skirting, or special tires and
wheels, these things can be damaged during towing.
Before you do anything, turn on the hazard warning flashers.
When you call, tell the towing service:
That, if your vehicle has all-wheel drive or rear-wheel drive \
with fog
lamps, it cannot be towed from the front with sling-type equipment.
That your vehicle has rear-wheel drive, or that it has the
The make, model, and year of your vehicle.
all-wheel-drive
option.
0 Whether you can still move the shift lever.
0 If there was an accident, what was damaged.
When your vehicle is being towed, have the ignition key off. The steering
wheel should be clamped in a straight-ahead position, with a clamping
device designed for towing service.
Do not use the vehicle’s steering
column lock for this. The transmission should be in “N” (Neutral) and the
parking brake released.
If your vehicle has the all-wheel drive option, it can only be towed with all
four wheels off the ground.
A dolly must be used under the un-raised
wheels when towing or the vehicle must be transported
on a flat bed carrier.
5-7

Downloaded from www.Manualslib.com manuals search engine 8. Then replace the
pressure cap. At
any time during
this procedure
if
coolant begins to
flow out of the
filler neck,
reinstall the
pressure cap. Be
sure the arrows on
the pressure cap
line up like this.
Engine Fan Noise
This vehicle has a clutched engine cooling fan. When the clutch is engaged,
the fan spins faster to provide more
air to cool the engine. In most every day
driving conditions the clutch is not engaged. This improves fuel economy
and reduces fan noise. Under heavy vehicle loading, trailer towing and/or
high outside temperatures, the fan speed increases when the clutch engages.
So you may hear an increase in fan noise. This is normal and should not be
mistaken as the transmission slipping or making extra shifts. It is merely the
cooling system functioning properly. The fan will slow down when
additional cooling is not required and the clutch disengages.
You may also hear this fan noise when you start the engine. It will go away
as the
fan clutch disengages.
If a Tire Goes Flat
It’s unusual for a tire to “blow out” while you’re driving, especially if you
maintain your tires properly.
If air goes out of a tire, it’s much more likely to
leak out slowly. But if you should ever have a “blowout,” here are a
few tips
about what to expect and what to do:
If a front tire fails, the flat tire will create a drag that pulls the vehicle
toward that side. Take your foot off the accelerator pedal and grip the
steering wheel firmly. Steer to maintain lane position, then gently brake to a
stop well out of the traffic lane.
A rear blowout, particularly on a curve, acts much like a skid and may
require the same correction you’d use
in a skid. In any rear blowout, remove
your foot from the accelerator pedal. Get the vehicle under control
by
steering the way you want the vehicle to go. It may be very bumpy and
noisy, but you can still steer. Gently brake to a stop, well off the road if
possible.
If a tire goes flat,
the next section shows how to use your jacking equipment
to change a flat tire safely.
5-18

Downloaded from www.Manualslib.com manuals search engine Changing a Flat Tire
If a tire goes flat, avoid further tire and wheel damage by driving slowly to a
level place. Turn on your hazard warning flashers.
I Flat Tire
L U
Blocked Tire
c
The following steps will tell you how to use the jack and change a tire.
5-19

Downloaded from www.Manualslib.com manuals search engine Rear Axle
When to Check and Change Lubricant
Refer to the Maintenance Schedule to determine how often to check the
lubricant and
when to change it. See “Scheduled Maintenance Services” in
the Index.
How to Check Lubricant
. .... ... I..
If the level is below
the bottom of the filler
plug hole, you’ll need
to add some lubricant.
Add enough lubricant
to raise the level to the
bottom of the filler
plug hole.
What to Use
Refer to the Maintenance Schedule to determine what kind of lubricant to
use. See “Recommended Fluids and Lubricants”
in the Index.
All- Wheel IDrive
If you have an all-wheel drive vehicle, be sure to perform the lubricant
checks described in this section. However, they have two additional systems
that need lubrication.
Transfer Case
When to Check Lubricant
Refer to the Maintenance Schedule to determine how often to check the
lubricant. See “Periodic Maintenance Inspections” in the Index.
6-24

Downloaded from www.Manualslib.com manuals search engine Capacities and Specification Charts
Replacement Parts
Replacement part numbers listed in this section are based on the latest
information available at the time of printing, and are subject to change. If a
part listed in this manual is not the same as the part used in your vehicle
when
it was built, or if you have any questions, please contact your GM
truck dealer.
Engine Identification
Engine Description
Type VIN Code
Fuel System
Produced By
Emissions
*Throttle Body Fuel Injection
**Central
Port Fuel Injection
Wheel Nut Torque
DESCRIPTION
Base or Optional Wheel
4.3L
V6
Z
TBI*
U.S.
L.D.
6-68
4.3L
V6
W
CPI* *
U.S.
L.D.
TORQUE
100 ft. lbs. (140 Nom)