2005 CHEVROLET ASTRO CARGO VAN engine

Vehicle Identication
Vehicle Identication Number (VIN)
This is the legal identier for your vehicle. It appears on
a plate in the front corner of the instrument panel, on
the driver’s side. You can see it if you look through the
windshield from outside your vehicle. The VIN also
appears on the Vehicle Certication and Service Parts
labels and the certicates of title and registration.
Engine Identication
The eighth character in your VIN is the engine code.
This code will help you identify your engine,
specications and replacement parts.
Service Parts Identication Label
You will nd this label on the front passenger door
frame. It is very helpful if you ever need to order parts.
On this label you will nd the following:
VIN
Model designation
Paint information
Production options and special equipment
Be sure that this label is not removed from the vehicle.
5-91

Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from
short circuits by a combination of fuses, circuit breakers
and fusible thermal links. This greatly reduces the
chance of res caused by electrical problems.
Look at the silver-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the identical
size and rating.
Spare fuses and a fuse puller are located in the
underhood fuse block. You can remove fuses with the
fuse puller. Remember to replace any of the spare fuses
you use, so you will have some if you ever need them
again.
If you ever have a problem on the road and do not have
a spare fuse, you can borrow one that has the same
amperage. Just pick some feature of your vehicle
that you can get along without – like the radio or
cigarette lighter – and use its fuse, if it is the correct
amperage. Replace it as soon as you can.
There are two fuse blocks in your vehicle: one is inside
the vehicle and one is in the engine compartment.
Instrument Panel Fuse Block
The fuse block is located on the lower portion of the
instrument panel on the driver’s side.
5-93

Underhood Fuse Block
The underhood fuse block is located toward the rear of
the engine compartment on the driver’s side of the
vehicle.
Lift the hood and open the cover to gain access to this
fuse block.
A fuse puller is included in the underhood fuse block.
You will also nd spare fuses.
5-96

Capacities and Specications (cont’d)
ApplicationCapacities
English Metric
Engine Oil with Filter 4.5 qt 4.3 L
Fuel Tank 27.0 gal 101.8 L
Transmission Fluid (Drain and Rell) 5.0 qt 4.7 L
Wheel Nut Torque 140 ft lb 190Y
All capacities are approximate. When adding, be sure to ll to the appropriate level, as recommended in this
manual. Recheck the uid level after lling. See refrigerant charge label under the hood for charge capacity
information and requirements.
Engine Specications
Engine VIN Transmission Spark Plug Gap
“Vortec” 4300 V6 MFI* LU3 Automatic 0.060 inches (1.52 mm)
*Micro Fuel Injection
5-100

Normal Maintenance Replacement Parts
Replacement parts identied below by name, part number, or specication can be obtained from your dealer.
Part GM Part Number ACDelco®Part Number
Engine Air Cleaner/Filter 25098463 A1163C
Engine Oil Filter 25010792 PF47
Fuel Filter 15050894 GF481
PCV Valve 6487532 CV 769-C
Spark Plugs 25162556 41–932
Wiper Blades (Trico Type)
Front – 18 inches (45.7 cm) 22110431 —
Rear – 14 inches (35.5 cm) 22121329 —
5-101

Maintenance Schedule......................................6-2
Introduction...................................................6-2
Maintenance Requirements..............................6-2
Your Vehicle and the Environment....................6-2
How This Section is Organized.........................6-3
Part A: Scheduled Maintenance Services...........6-4
Using the Maintenance Schedule......................6-4
Selecting the Right Schedule...........................6-5
Short Trip/City Scheduled Maintenance..............6-6
Long Trip/Highway Scheduled Maintenance......6-16
Part B: Owner Checks and Services................6-24
At Each Fuel Fill..........................................6-24
At Least Once a Month.................................6-24
At Least Twice a Year...................................6-24At Least Once a Year...................................6-25
Part C: Periodic Maintenance Inspections.........6-28
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection............................6-28
Exhaust System Inspection............................6-28
Fuel System Inspection..................................6-28
Engine Cooling System Inspection...................6-28
Throttle System Inspection.............................6-29
Transfer Case and Front Axle (All-Wheel
Drive) Inspection.......................................6-29
Brake System Inspection................................6-29
Part D: Recommended Fluids and Lubricants. . . .6-29
Part E: Maintenance Record...........................6-31
Section 6 Maintenance Schedule
6-1

Maintenance Schedule
Introduction
Important: Keep engine oil at the proper level and
change as recommended.
Have you purchased the GM Protection Plan? The Plan
supplements your new vehicle warranties. See your
Warranty and Owner Assistance booklet or your dealer
for details.
Maintenance Requirements
Maintenance intervals, checks, inspections and
recommended uids and lubricants as prescribed in this
manual are necessary to keep your vehicle in good
working condition. Any damage caused by failure
to follow scheduled maintenance may not be covered by
warranty.
Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep your
vehicle in good working condition, but also helps the
environment. Improper vehicle maintenance can
even affect the quality of the air we breathe. Improper
uid levels or the wrong tire ination can increase
the level of emissions from your vehicle. To help protect
our environment, and to keep your vehicle in good
condition, be sure to maintain your vehicle properly.
6-2

Selecting the Right Schedule
First you will need to decide which of the two schedules
is right for your vehicle. Here is how to decide which
schedule to follow:
Short Trip/City Denition
Follow the Short Trip/City Scheduled Maintenance if any
one of these conditions is true for your vehicle:
Most trips are less than 5 miles (8 km). This is
particularly important when outside temperatures
are below freezing.
Most trips include extensive idling, such as frequent
driving in stop-and-go traffic.
You frequently tow a trailer or use a carrier on top
of your vehicle.
If the vehicle is used for delivery service, police,
taxi, or other commercial application.
One of the reasons you should follow this schedule if
you operate your vehicle under any of these conditions
is that these conditions cause engine oil to break
down sooner.
Short Trip/City Intervals
Every 3,000 Miles (5 000 km):Engine Oil and Filter
Change (or 3 months, whichever occurs rst). Chassis
Lubrication (or 3 months, whichever occurs rst).
Every 6,000 Miles (10 000 km):Tire Rotation.
Every 15,000 Miles (25 000 km):Engine Air Cleaner
Filter Inspection. Front Wheel Bearing Repack
(two–wheel drive only) (or at each brake relining,
whichever occurs rst). Automatic Transmission Service
(severe conditions only).
Every 30,000 Miles (50 000 km):Fuel Filter
Replacement.
Every 45,000 Miles (75 000 km):Engine Air Cleaner
Filter Replacement.
Every 50,000 Miles (83 000 km):Automatic
Transmission Service (normal conditions). Transfer
Case Fluid Change.
Every 100,000 Miles (166 000 km):Spark Plug Wire
Inspection. Spark Plug Replacement. Positive
Crankcase Ventilation (PCV) Valve Inspection.
Every 150 000 Miles (240 000 km):Cooling System
Service (or every 60 months, whichever occurs
rst). Engine Accessory Drive Belt Inspection.
6-5