fuel filter CHEVROLET ASTRO 2003 Owners Manual

Section 5 Service and Appearance Care
Service .......................................................... -5-3
Doing Your Own Service Work
......................... 5-3
Adding Equipment to the Outside of
Your Vehicle
.............................................. 5-4
Fuel ................................................................ 5.5
Gasoline Octane ........................................... -5-5
Gasoline Specifications .................................... 5.5
California Fuel ............................................. -56
Additives
....................................................... 5.6
Fuels in Foreign Countries
............................... 5.7
Filling Your Tank
............................................ 5-8
Filling a Portable Fuel Container
..................... 5-10
Checking Things Under the Hood .................... 5-1 1
Hood Release .............................................. 5.11
Engine Compartment Overview
...................... 5.14
Engine Oil
................................................... 5.15
Engine Cover ................. .... ........ 5.20
Engine Air Cleaner/Filter
................. ........ 5.24
Automatic Transmission Fluid
...................... 5.25
Engine Coolant ............................................. 5.28
Radiator Pressure Cap
.................................. 5.30
Engine Overheating
....................................... 5.31
Cooling System
............................................ 5.33
Engine Fan Noise
......................................... 5.39
Power Steering Fluid
..................................... 5.40
Windshield Washer Fluid
................................ 5.41 Brakes
........................................................ 5.42
Battery
........................................................ 5-46
Jump Starting
............................................... 5-47
All-Wheel Drive .............................................. 5-52
Rear Axle ....................................................... 5-53
Front Axle ...................................................... 5-54
Bulb Replacement .......................................... 5-55
Halogen Bulbs .............................. ..... 5-55
Headlamps .................................. ..... 5-55
Front Turn Signal Lamps ............................... 5-59
Replacement Bulbs
....................................... 5-61
Windshield Wiper Blade Replacement .............. 5-62
Tires .............................................................. 5.63
Inflation
- Tire Pressure ................................ 5-64
Tire Inspection and Rotation
........................... 5-64
When It
Is Time for New Tires ....................... 5-66
Buying New Tires
......................................... 5-66
Uniform Tire Quality Grading
.......................... 5-67
Wheel Alignment and Tire Balance
.................. 5-69
Wheel Replacement
...................................... 5-69
Tire Chains
.................................................. 5-70
If a Tire Goes Flat ........................................ 5.70
Changing a Flat Tire ..................................... 5.71
Compact Spare Tire ...................................... 5-82
Taillamps
.................................................... 5-60
5- 1

A. Windshield Washer Fluid
B. Engine Coolant
C. Engine
Oil Dipstick
D. Transmission Dipstick
E. Engine Air Cleaner/Filter
F. Engine Oil Fill
G. Brake Master Cylinder Reservoir
H. Power Steering Fluid Reservoir
I. Battery
Engine Oil
It is important to keep engine oil at the proper level. The engine oil dipstick has a yellow ring and is located
near the center of the engine compartment. See
Engine
information on location.
Checking Engine Oil Compartment Overview on page 5- 14 for more
It’s a good idea to check your engine oil every time
you
get fuel. In order to get an accurate reading, the oil Turn off the engine and give the oil several minutes to
must be warm and the vehicle must be on level ground. drain back into the
Oil pan. If YOU don’t, the oil dipstick
might not show the actual level.
Pull out the dipstick and clean it with a paper towel or
cloth, then push it back in all the way. Remove it again,
keeping the tip down, and check the level.
5-1 5

Normal Maintenance 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.
Part Number
I Engine Oil Filter
PF47*
Positive Crankcase Ventilation (PCV) Valve CV769C*
I Spark Plugs
41 -932*
I Fuel Filter
GF481*
Wiper Blades (Front)
Type
Length Trico 221 101 58
18 inches (45.7 cm)
Wiper Blades (Rear)
Type
Length Trico 22 1 54396
14 inches (35.5 cm)
5-1 01

Selecting the Right Schedule
First you’ll need to decide which of the two schedules
is right for your vehicle. Here’s how to decide which
schedule to follow:
Short Trip/City Definition
Follow the Short Trip/City Scheduled Maintenance if any
one of these conditions is true for your vehicle:
e
e
e
e
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 first). Chassis
Lubrication (or
3 months, whichever occurs first).
Drive Axle Fluid Check.
Every 6,000 Miles (IO 000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Engine Air
Cleaner Filter Inspection,
if driving in dusty conditions.
Front Wheel Bearing Repack (two-wheel drive only)
(or at each brake relining, whichever occurs first).
Automatic Transmission Service (severe conditions only).
Every 30,000 Miles (50 000 km): Engine Air Cleaner
Filter Replacement. Fuel 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
first). Engine Accessory Drive Belt Inspection.
These intervals only summarize maintenance services.
Be sure to follow the complete scheduled maintenance
on the following pages.
6-5

Long Trip/Highway Definition
Follow this scheduled maintenance only if none of
the conditions from the Short Trip/City Scheduled
Maintenance are true. Do not use this schedule
if the
vehicle is used for trailer towing, driven in a dusty area
or used
off paved roads. Use the Short Trip/City
schedule for these conditions.
Driving a vehicle with a fully warmed engine under
highway conditions will cause engine oil
to break
down slower.
Long Trip/Highway Intervals
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every
12 months, whichever occurs first).
Chassis Lubrication (or
12 months, whichever
occurs first). Drive Axle Fluid Check. Tire Rotation.
Every 15,000 Miles (25 000 km): Automatic
Transmission Service (severe conditions only).
Every 30,000 Miles (50 000 km): Fuel Filter
Replacement. Engine Air Cleaner Filter Replacement.
Front Wheel Bearing Repack (two-wheel drive only)
(or at each brake relining, whichever occurs first).
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 first).
Engine Accessory Drive Belt Inspection.
These intervals only summarize maintenance services.
Be sure to follow the complete scheduled maintenance
on the following pages.
6-6

21,000 Miles (35 000 km) 7,000 Miles (45 000 km)
B Change engine oil and filter (or every 3 months, 0 Change engine oil and filter (or every 3 months,
d Lubricate chassis components (or every 3 months, U Lubricate chassis components (or every 3 months,
whichever
occurs first).
An Emission Control Service. whichever occurs first). An Emission Control Service.
whichever occurs first). (See footnote #.) whichever occurs first). (See footnote #.) ,I
U Check readfront axle fluid level and add fluid as B Check readfront axle fluid level and add fluid as
needed. Check constant velocity joints and axle seals
for leaking.
needed. Check constant
velocity joints and axle seals
for leaking.
30,000 Miles (50 000 km)
24,000 Miles (40 000 km) 0 Change enqine oil and filter (or every 3 months,
u
Change engine oil and filter (or every 3 months,
whichever &curs first). An Emission- Control Service.
Lubricate chassis components (or every 3 months, whichever
occurs first). (See footnote #.)
whichever OCCUrS first). An Emission Control Service. 0 Lubricate chassis components (or every 3 months,
whichever occurs first):
(See footnote #.)
Check readfront axle fluid level and add fluid as
needed. Check constant velocity joints and axle seals
for leaking.
Rotate tires. See
Tire Inspection and Rotation on
page 5-64 for proper rotation pattern and additional
information.
(See footnote +.)
0 Check readfront axle fluid level and add fluid as
needed. Check constant velocity joints and axle seals
for leaking.
0 For Two-Wheel-Drive vehicles only: Clean and repack
the front wheel bearings (or at each brake relining,
whichever occurs first).
(See footnote t.)
0 Replace fuel filter. An Emission Control Service.
B Replace engine air cleaner filter. An Emission Control
Service.
6-9

57,000 Miles (95 000 km)
0 Change engine oil and filter (or every 3 months,
B Lubricate chassis components (or every 3 months,
0 Check readfront axle fluid level and add fluid as
whichever
occurs first).
An Emission Control Service.
whichever occurs first). (See footnote #-)
needed. Check constant velocity joints and axle seals
for leaking.
60,000 Miles (100 000 km)
0 Change engine oil and filter (or every 3 months,
whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components (or every 3 months,
whichever occurs first).
(See footnote #.)
0 Check readfront axle fluid level and add fluid as
needed. Check constant velocity joints and axle seals
for leaking.
U For Two-Wheel-Drive vehicles only: Clean and repack
the front wheel bearings (or at each brake relining,
whichever occurs first).
U Change automatic transmission fluid and filter 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 higher.
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery
service.
If you do not use your vehicle under any of these
conditions, change the fluid and filter every
50,000 miles (83 000 km).
0 Replace fuel filter. An Emission Control Service.
0 Replace engine air cleaner filter. An Emission
0 Rotate tires. See Tire Inspection and Rotation on
(See footnote
f.)
Control Service.
page
5-64 for proper rotation pattern and additional
information.
(See footnote +.)
6-1 3

Cl Replace fuel filter. An Emission Control Service.
(See footnote
f.)
0 Replace engine air cleaner filter. An Emission
U Rotate tires. See Tire inspection and Rotation on
Control Service.
page
5-64 for proper rotation pattern and additional
information.
(See footnote +.)
93,000 Miles (155 000 km)
0 Change engine oil and filter (or every 3 months,
01 Lubricate chassis components (or every 3 months,
0 Check readfront axle fluid level and add fluid as
whichever
occurs first).
An Emission Control Service.
whichever occurs first). (See footnote #.)
needed. Check constant velocity joints and axle seals
for leaking.
96,000 Miles (160 000 km)
0 Change engine oil and filter (or every 3 months,
U Lubricate chassis components (or every 3 months,
0 Check readfront axle fluid level and add fluid as
whichever
occurs first).
An Emission Control Service.
whichever occurs first). (See footnote #.)
needed. Check constant velocity joints and axle seals
for leaking.
page 5-64 for proper rotation pattern and additional
information.
(See footnote +.)
U Rotate tires. See Tire lnspection and Rotation on
99,000 Miles (165 000 km)
El Change engine oil and filter (or every 3 months,
whichever occurs first).
An Emission Control Service.
U Lubricate chassis components (or every 3 months,
whichever occurs first).
(See footnote #.)
0 Check readfront axle fluid level and add fluid as
needed. Check constant velocity joints and axle seals
for leaking.
6-1 7

22,500 Miles (37 500 km)
0 Change engine oil and filter (or every 12 months,
0 Lubricate chassis components (or every 12 months,
0 Check readfront axle fluid level and add fluid as
whichever
occurs first).
An Emission Control Service.
whichever occurs first). (See footnote
#).
needed. Check constant velocity joints and axle seals
for leaking.
page
5-64 for proper rotation pattern and additional
information. (See footnote
+).
Ll Rotate tires. See Tire Inspection and Rotation on
30,000 Miles (50 000 km)
Cl Change engine oil and filter (or every 12 months,
0 Lubricate chassis components (or every 12 months,
U Check readfront axle fluid level and add fluid as
whichever occurs first). An Emission Control Service.
whichever occurs first). (See footnote
#).
needed. Check constant velocity joints and axle seals
for leaking.
0 For Two-Wheel-Drive vehicles only: Clean and repack
the front wheel bearings (or at each brake relining,
whichever occurs first).
0 Change automatic transmission fluid and filter 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 higher.
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery
service.
if you do not use your vehicle under any of these
conditions, change the
fluid and filter every
50,000 miles (83 000 km).
Ll Rotate tires. See Tire Inspection and Rotation on
page 5-64 for proper rotation pattern and additional
information.(See footnote
+).
(See footnote t).
Control Service.
B Replace fuel filter. An Emission Control Service.
0 Replace engine air cleaner filter. An Emission
6-20

52,500 Miles (87 500 km)
CI Change engine oil and filter (or every 12 months,
0 Lubricate chassis components (or every 12 months,
0 Check readfront axle fluid level and add fluid as
whichever occurs first).
An Emission
Control Service.
whichever occurs first). (See footnote #).
needed. Check constant velocity joints and axle seals
for leaking.
page 5-64 for proper rotation pattern and additional
information.
(See footnote +).
0 Rotate tires. See Tire Inspection and Rotation on
60,000 Miles (100 000 km)
0 Change engine oil and filter (or every 12 months,
0 Lubricate chassis components (or every 12 months,
0 Check readfront axle fluid level and add fluid as
whichever occurs first).
An Emission Control Service.
whichever occurs first). (See footnote #).
needed.
Check constant velocity joints and axle seals
for leaking.
0 For Two-Wheel-Drive vehicles only: Clean and repack
the front wheel bearings (or at each brake relining,
whichever occurs first).
0 Change automatic transmission fluid and filter 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 higher.
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery
service.
If you do not use your vehicle under any of these
conditions, change the fluid and filter every
50,000 miles
(83 000 km).
0 Rotate tires. See Tire Inspection and Rotation on
page 5-64
for proper rotation pattern and additional
information.
(See footnote +).
(See footnote t).
Control Service.
0 Replace fuel filter. An Emission Control Service.
0 Replace engine air cleaner filter. An Emission
6-22