1994 CHEVROLET ASTRO PASSENGER manual transmission

Downloaded from www.Manualslib.com manuals search engine Don't have your vehicle towed with the wheels in contact with the ground if
it has all-wheel drive.
If a vehicle with all-wheel drive must be towed with
sling-type
or wheel lift equipment, then either the front or rear wheels must
be supported on a dolly.
If your vehicle has rear-wheel drive, don't have it towed on the rear wheels,
unless you must.
If a vehicle with rear-wheel drive must be towed on the
rear wheels, don't go more than
35 mph (56 kmh) or farther than 50 miles
(80 km) or your transmission will be damaged. If these limits must be
exceeded, then the rear wheels have to
be supported on a dolly.
Towing AI!= Wheel Drive Vehicles
NOTICE:
Do not tow with sling-type equipment or the front bumper
system will be damaged.
Use wheel lift
or car-carrier equipment.
(Continued)
I

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 If You’re Stuck: In Sand, Mud, Ice or Snow
What you don’t want to do when your vehicle is stuck is to spin your
wheels. The method known as “rocking” can help you get out when you’re
stuck, but you must use caution.
.. .. .. ., ..., . ....
1 NOTICE: I
Spinning your wheels can destroy parts of your vehicle as well as
the tires. If
you spin the wheels too fast while shifting your
transmission back and forth, you can destroy your transmission.
I
Rocking your vehicle to get it out:
First, turn your steering wheel left and right. That will clear the area around
your front wheels. Then shift back and forth between
“R’ (Reverse) and a
forward gear, spinning the wheels as little as possible. Release the
accelerator pedal while you shift, and press lightly on the accelerator pedal
when the transmission is in gear. If that doesn’t get you out after a few tries,
you may need to be towed out. If you do need to be towed out, see “Towing
Your Vehicle’’ in the Index.
5-33

Downloaded from www.Manualslib.com manuals search engine Service & Appearance Care
...
Section
Here you will find information about the care of your vehicle . This part
begins with service and fuel information. and then it shows how to check
important fluid and lubricant levels
. There is also technical information
about your vehicle. and a section devoted to its appearance care
.
Service ................................................... 6-2
Fuel
..................................................... 6-3
Checking Things Under the Hood
.............................. 6-7
Hood Release
........................................... 6-7
Engineoil
.............................................. 6-9
Enginecover
.......................................... 6-15
Air Cleaner
............................................ 6-19
Automatic Transmission Fluid ............................. 6-20
RearAxle
............................................. 6-24
All-WheelDrive
........................................ 6-24
Transfercase
.......................................... 6-24
FrontAxle
............................................. 6-25
Engine Coolant
....................................... 6-26
Windshield Washer Fluid
................................. 6-31
Brake Master Cylinder
................................... 6-32
Replacing Brake System Parts
.................... ........ 6-35
Battery
.................................................. 6-35
Vehiclestorage
......................................... 6-35
FluidLeakCheck
.......................................... 6-36
Bulb Replacement
......................................... 6-36
Other Maintenance Items
.................................... 6-41
Tires
.................................................... 6-47
Appearancecare
.......................................... 6-54
Vehicle Identification Number
................................ 6-63
Service Parts Identification Label
..................... .... 6-65
Capacities and Specification Charts
................ . . 6-68
Fuses and Circuit Breakers ........... 6-72
Power Steering Fluid .................................. 6-30
Loading Your Vehicle
.... .............................. 6-44
6-1

Downloaded from www.Manualslib.com manuals search engine If you have the 4.3L engine (VIN Code W) with the square air cleaner, you
can change the air cleaner filter without removing the engine cover. Just lift
the hood, unsnap both clips and remove
the top. After changing the filter,
snap both clips to secure
the air cleaner. Be sure air cleaner lid is correctly
positioned to seal out dust and contaminants that are harmful
to your engine.
Refer to the Maintenance Schedule to determine when to replace the air
filter.
See “Scheduled Maintenance Services”
in the Index.
NOTICE:
If the air cleaner is off, a backfire can cause a damaging engine
fire. And, dirt can easily get into your engine, which
will damage
it. Always have the air cleaner in place when you’re drivin\
g.
Automatic Transmission Fluid
When to Check and Change
A good time to check your automatic transmission fluid level is when the
engine oil is changed. Refer to the Maintenance Schedule to determine
when to change your fluid. See “Scheduled Maintenance Services” in the
Index.
How to Check
Because this operation can be a little difficult, you may choose to have this
done at a GM dealership Service Department.
If you do it yourself, be sure to follow all the instructions here,
or you could
get a false reading on the dipstick.
6-20

Downloaded from www.Manualslib.com manuals search engine NOTICE:
Too much or too little fluid can damage your transmission. Too
much can mean that some of the fluid could come out and fall on
hot engine parts or exhaust system, starting a fire. Be sure to get
an accurate reading if you check
your transmission fluid.
Wait at least 30 minutes before checking the transmission fluid level if you
have been driving:
0 When outside temperatures are above 90°F (32 ” C).
0 At high speed for quite a while.
0 In heavy traffic - especially in hot weather.
While pulling a trailer.
To get the right reading, the fluid should be at normal operating
temperature, which is
180°F to 200°F (82°C to 93°C).
To check transmission fluid hot: Get the vehicle warmed up by driving
about 15 miles (24 km) when outside temperatures are above
50°F (10” C).
If it’s colder than
50°F (IOOC), drive the vehicle in “D” (3rd Gear) until the
engine temperature gage moves and then remains steady for ten minutes.
Then follow the hot check procedures.
To check transmission fluid cold: A cold check is made after the vehicle has
been sitting for eight hours or more with the engine off and
is used only as a
reference. Let the engine run at idle for five minutes if outside temperatures
are
50°F ( 10°C) or more. If it’s colder than 50°F (IOOC), you may have to
idle the engine longer. Should the fluid level be low during a cold check,
you must perform a hot check before adding fluid. This will give you a
more accurate reading
of the fluid level.
To check the fluid hot or cold
Park your vehicle on a level place.
With the parking brake applied, place the shift lever in “P” (Park).
With your foot on the brake pedal, move the shift lever through each
gear range, pausing for about three seconds in each range. Then,
position the shift lever in
“P” (Park).
0 Let the engine run at idle for three minutes or more.
6-21

Downloaded from www.Manualslib.com manuals search engine 4. If the fluid level
is in the
acceptable range,
push the dipstick
back in all the
way.
How to Add Fluid
Refer to the Maintenance Schedule to determine what kind of transmission
fluid to use. See “Recommended Fluids and Lubricants”
in the Index.
If the fluid level
is low, add only enough of the proper fluid to bring the
level up to the
COLD area for a cold check or the HOT area for a hot
check. It doesn’t take much fluid, generally less than
a pint. Don’t overfill.
We recommend you use only fluid labeled DEXRON@-I11 or
DEXRON@-IIE, because fluids with that label are made especially for our
automatic transmission. Damage caused by fluid other than DEXRON
-111
or DEXRON@-IIE is not covered by your new vehicle warranty.
d
After adding fluid, recheck the fluid level as described under “How to
Check.”
When the correct fluid level is obtained, push the dipstick back in all
the way.
6-23

Downloaded from www.Manualslib.com manuals search engine LAMPS
General Indicator Lamp?
Instrument Cluster Illum.?
Headlamp Beam Indicator Lamp?
Headlamp Beam Indicator Lamp$
Malfunction Indicator Lamp (Service Engine Soon)?
Malfunction Indicator Lamp
(Service Engine Soon)$
Directional Indicator?
Directional Indicator$
Brake Warning Indicator Lamp?
Brake Warning Indicator Lamp$
Transmission Indicator Dial$
Fog Lamps
Safety Belt Warning?
Safety Belt Warning$
Daytime Running Lights Indicator?
Daytime Running Lights Indicator$
Anti-lock Warning Indicator?
Anti-lock Warning Indicator$
Air Bag?
Air Bag$
QUANTITY TRADE NO.
1 PC74
1 PC94
1 PC74
1 PC161
1 PC74
1
2
2
1
1
1
2
2
2
2
2
2
2
2
2
PC 194
PC74
PC 194
PC74
PC 194
PC 194
GE885 PC74
PC 194
PC74
PC161 PC74
PC 194
PC74
PC 194
?With Standard Cluster
$With Digital Cluster
6-71