1994 CHEVROLET ASTRO PASSENGER air filter

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 8. Grasp the bottom of the instrument panel extension and install the top
9. Install the two nuts and two screws on the extension.
into
the groove
first. Then, push the bottom of the extension into place.
Air Cleaner
To Remove the Air Cleaner Filter:
If you have the 4.3L engine (VIN Code Z) with the round air cleaner, you
must first remove the engine cover before changing the filter. (See “Engine
Cover” earlier
in this section.) After removing the engine cover, unscrew the
wing nuts to take the cover
off the air cleaner. After changing the filter, put
the cover back on and be sure the wing nuts are properly tightened. Be sure
air cleaner lid
is correctly positioned to seal out dust and contaminants that
are harmful to your engine.
6-19

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 NAME
DRL**
PWR
MIRRORS*
TRAILER*
CIRCUITS
PROTECTED
Canadian Daytime Running
Lights
Power Mirror
Trailer Wiring Harness
FUSE
10 Amp
3 Amp
30 Amp
*In-line fuse
**Canada only
***In-line fuse (certain models)
Service Replacement Part and Filter
Recommendations
ENGINE (VIN)
OIL FILTER
AIR CLEANER FILTER
PCV VALVE
SPARK PLUGS*
FUEL FILTER
RADIATOR CAP 4.3L (2)
PF52
A773C
CV789C
.CR43TSM
GF48
1
RC36
*Use copper-cored resistor type spark plugs.
CIRCUIT
BREAKER
4.3L
(W)
PF52
A1163C
cv774c
.CR43TSM GF48
1
RC36
6-74

Downloaded from www.Manualslib.com manuals search engine MAlNTENANCE SCHEDULE I/
Item Miles (000) 7.5 15 22.5 30
No. Kilometers (000) 12.5 25 37.5 50
Service
Oil Filter Change*- 12 Months, or
1 12 Months, or I 1 1 I
2 Chassis Lubrication-Every
3 Cooling System Service*
-Every
24 Months or
4 I Air Cleaner Filter Replacement* I I I I 0
5 Front Wheel Bearing Repack
(2WD Only) 0
6 Transmission Service **
7 Fuel Filter Replacement*$ 0
8 Spark Plug Replacement* 0
9 Spark Plug Wire Inspection*
10 Engine Timing Check*$
11 Fuel Tank, Cap and Lines
12 Engine Accessory Drive Belt
13 Tire and Wheel Rotation
0 0
14 Drive Axle Service 0.00
15 Brake Systems Inspection** Inspection*$
Inspection”
* An Emission Control Service
** See “Explanation of Scheduled Maintenance Services” in the Index
$ The California Air Resources Board has determined that the fail\
ure to perform this
maintenance item will not nullify the emission warranty or limi\
t recall liability prior
to the
completion
of vehicle useful life. General Motors, however, urges that all recommended
maintenance services be performed at the indicated intervals and\
the maintenance be
recorded.
THE SERVICES SHOWN
ON THIS CHART UP TO 60,000 MILES (100 000 km) ARE TO BE
DONE AFTER
60,000 MILES AT THE SAME INTERVALS.
TI 003
7-6

Downloaded from www.Manualslib.com manuals search engine Explanation Of Scheduled Maintenance Services
Below are explanations of the services listed in the maintenance charts.
The proper fluids and lubricants to use are listed
in this section. Make sure
whoever services your vehicle uses these. All parts should
be replaced and
all necessary repairs done before you or anyone else drives the vehicle.
1.
2.
3.
4.
5.
ENGINE OIL AND OIL FILTER CHANGE“ - ALWAYS USE
API SERVICE
SH OR SG ENERGY CONSERVING I1 OILS OF THE
PROPER VISCOSITY. The
“SH7 or “SG7 designation may be shown
alone or in combination with others, such as “SWCD”, or
“SH, SG,
CD,” or “SG/CD”, etc. To determine the preferred viscosity oil for your
vehicle’s engine see “Engine Oil”
in the Index.
CHASSIS LUBRICATION - Lubricate the front suspension,
steering linkage, transfer case shift linkage, parking brake cab\
le guides,
and brake pedal springs at the intervals specified on the proper
maintenance schedule, or at every engine oil change, whichever \
comes
first.
Ball joints and king pin bushings should not be lubricated unless their
temperature is
10°F (-1 2°C) or higher. When the weather is cold, let
them warm up before lubricating them or they could be damaged.\

Also, be sure to check all the vehicle fluid levels at this \
time.
COOLING SYSTEM SERVICE* - Drain, flush and refill the
system
with new or approved recycled coolant conforming to “GM
Specification 6038-M”. See “Engine Coolant”
in the Index for the
proper coolant and mixture to use
in your vehicle.
Also inspect the hoses and replace them
if they are cracked, swollen, or
deteriorated. Clean the outside of the radiator and air conditioning
condenser. Wash the radiator neck.
To ensure proper operation,
pressure test the radiator and cap.
AIR CLEANER FILTER REPLACEMENT* - Replace at
specified intervals. Ask your dealer for the proper replacement
intervals for your driving conditions.
FRONT WHEEL BEARING REPACK
(2-WHEEL DRIVE ONLY)
- Clean and repack the front wheel
bearings at each brake relining,
or at the specified interval, whichever
comes first.
* An Emission Control Service
7-7

Downloaded from www.Manualslib.com manuals search engine 6. TRANSMISSION SERVICE: - Change the transmission fluid and
filter every
15,000 miles (25 000 km) if the vehicle is mainly driven
under
one or more of these conditions:
In heavy city traffic.
Where the outside temperature regularly reaches 90 “F (32” C) or
In hilly or mountainous terrain.
higher.
Frequent trailer pulling.
0 Uses
such as taxi, police, delivery or other commercial service.
If the vehicle
is not used mainly under any of these conditions, change
the fluid and filter every
30,000 miles (50 000 km). See “Automatic
Transmission Fluid” in the Index for more information.
7. FUEL FILTER REPLACEMENT*$ - Replace the fuel filter at the
specified interval or sooner if clogged.
8. SPARK PLUG REPLACEMENT* - Replace spark plugs with the
type listed in Section
6. See “Specification Charts” in the Index.
9. SPARK PLUG WIRE INSPECTION* - Clean wires and inspect
for bums, cracks or other damage. Check the wire boot fit at the
distributor and at the spark plugs. Replace wires as needed.
Adjust timing to underhood label specifications. Inspect the inside and
outside
of the distributor cap and rotor for cracks, carbon tracking and
corrosion. Clean or replace as needed.
10. ENGINE TIMING CHECK AND DISTRIBUTOR CHECK*$ -
11. FUEL TANK, CAP AND LINES INSPECTION*$ - Inspect the
fuel tank, cap and lines for damage or leaks. Remove fuel cap, inspect
gasket for an even filler neck imprint, and any damage. Replace parts
as needed.
12. ENGINE ACCESSORY DRIVE BELT INSPECTION* - Inspect
belt.
Look for cracks, fraying, wear, and proper tension. Adjust or
replace as needed.
* An Emission Control Service
$ The California Air Resources Board has determined that the failure to perform \
this
maintenance item will not nullify the emission warranty or limit recall liability prior to the
completion of vehicle useful life. General Motors, however, urges that all re\
commended
maintenance services be performed at the indicated intervals and\
the maintenance be
recorded.
7-8

Downloaded from www.Manualslib.com manuals search engine Exhaust System ................................................. 6-43
F
FanNoise ...................................................... 5-18
Filter Replacement Chart
.......................................... 6-74
Finish
Care
........................................................ 6-59
Damage
..................................................... 6-61
Automatic Transmission
........................................ 6-20
Brake
....................................................... 6-32
Capacities
................................................... 6-69
CoolantRecovery
............................................. 5-14
FrontAxle
................................................... 6-25
Leak Check
.................................................. 6-36
Powersteering
............................................... 6-30
Radiator
..................................................... 5-15
Rear Axle
................................................... 6-24
RecommendedFluids
.......................................... 7-13
Transfercase
................................................ 6-24
Windshield Washer
............................................ 6-31
FogLamps
..................................................... 2-42
Four-wheel Anti-lock
............................................. 4-7
Frontseats
...................................................... 1-2
Fuel
........................................................... 6-3
FillingYourTank
.............................................. 6-5
Foreign Countries
.............................................. 6-5
Gage
....................................................... 2-61
Gasolines for Cleaner Air
........................................ 6-4
Tankcapacity ................................................ 6-69
Fuses and Circuit Breakers
........................................ 6-72
FuseBlock
.................................................. 6-67
Headlights
................................................... 6-66
Power Windows and Other Power Options
......................... 6-66
Trailer Wiring Harness
......................................... 6-66
Windshield Wipers
....................... .............. 6-66
Fluid
G
Gages ......................................................... 2-61
Coolant Temperature Gage
...................................... 2-63
FuelGage
................................................... 2-61
Odometer
................................................... 2-53
Oil Pressure Gage
............................................. 2-62
Speedometer
................................................. 2-53
Trip Odometer
................................................ 2-53
Voltmeter
.................................................... 2-64
Gasolines for Cleaner Air
.......................................... 6-4
Hatch Release Switch ............................................. 2-28
HalogenBulbs
........................................ ....... 6-36