2003 CHEVROLET CAVALIER cooling

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 De®nition
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. With some models, you should
never tow a trailer. See
Towing a Trailer (Automatic
Transaxle) on page 4-34orTowing a Trailer
(Manual Transaxle) on page 4-40.
·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).
Every 6,000 Miles (10 000 km):Chassis Lubrication (or
6 months, whichever occurs ®rst). Tire Rotation.
Every 15,000 Miles (25 000 km):Engine Air Cleaner
Filter Inspection.
Every 30,000 Miles (50 000 km):Engine Air Cleaner
Filter Replacement.
Every 50,000 Miles (83 000 km):Automatic Transaxle
Service (severe conditions only).
Every 100,000 Miles (166 000 km):Spark Plug Wire
Inspection. Spark Plug Replacement.
Every 150 000 Miles (240 000 km):Cooling System
Service (or every 60 months, whichever occurs
®rst). 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 De®nition
Follow this scheduled maintenanceonlyif 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
®rst). Chassis Lubrication (or 12 months, whichever
occurs ®rst). Tire Rotation.
Every 15,000 Miles (25 000 km):Engine Air Cleaner
Filter Inspection.
Every 30,000 Miles (50 000 km):Engine Air Cleaner
Filter Replacement.
Every 50,000 Miles (83 000 km):Automatic Transaxle
Service (severe conditions only).Every 100,000 Miles (166 000 km):Spark Plug Wire
Inspection. Spark Plug Replacement.
Every 150,000 Miles (240 000 km):Cooling System
Service (or every 60 months, whichever occurs
®rst). Engine Accessory Drive Belt Inspection.
These intervals only summarize maintenance services.
Be sure to follow the complete scheduled maintenance
on the following pages.
Short Trip/City Scheduled
Maintenance
The services shown in this schedule up to 100,000 miles
(166 000 km) should be repeated after 100,000 miles
(166 000 km) at the same intervals for the life of
this vehicle. The services shown at 150,000 miles
(240 000 km) should be repeated at the same interval
after 150,000 miles (240 000 km) for the life of this
vehicle.
See
Part B: Owner Checks and Services on page 6-19andPart C: Periodic MaintenanceInspections on
page 6-23.
6-6

100,000 Miles (166 000 km)
qReplace spark plugs.An Emission Control Service.
qChange automatic transaxle ¯uid and ®lter if the
vehicle is mainly driven under one or more of
these conditions:
þ In heavy city traffic where the outside
temperature regularly reaches 90ÉF (32ÉC) or
higher.
þ In hilly or mountainous terrain.
þ When doing frequent trailer towing.
þ Uses such as found in taxi, police or delivery
service.
If you do not use your vehicle under any of these
conditions, the ¯uid and ®lter do not require changing.
Manual transaxle ¯uid doesn't require changing.
150,000 Miles (240 000 km)
qDrain, ¯ush and re®ll cooling system (or every
60 months since last service, whichever occurs ®rst).
See
Engine Coolant on page 5-22for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test the cooling system
and pressure cap.
An Emission Control Service.
qInspect engine accessory drive belt.An Emission
Control Service.
6-13

100,000 Miles (166 000 km)
qReplace spark plugs.An Emission Control Service.
qChange automatic transaxle ¯uid and ®lter if the
vehicle is mainly driven under one or more of
these conditions:
þ In heavy city traffic where the outside
temperature regularly reaches 90ÉF (32ÉC) or
higher.
þ In hilly or mountainous terrain.
þ When doing frequent trailer towing.
þ Uses such as found in taxi, police or delivery
service.
If you do not use your vehicle under any of these
conditions, the ¯uid and ®lter do not require changing.
Manual transaxle ¯uid doesn't require change.
150,000 Miles (240 000 km)
qDrain, ¯ush and re®ll cooling system (or every
60 months since last service, whichever occurs ®rst).
See
Engine Coolant on page 5-22for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test the cooling system
and pressure cap.
An Emission Control Service.
qInspect engine accessory drive belt.An Emission
Control Service.
6-18

Part C: Periodic
MaintenanceInspections
Listed in this part are inspections and services which
should be performed at least twice a year (for instance,
each spring and fall).
You should let your dealer's
service department do these jobs. Make sure any
necessary repairs are completed at once.
Proper procedures to perform these services may be
found in a service manual. SeeService Publications
Ordering Information on page 7-10.
Steering, Suspension and Front
Drive Axle Boot and Seal Inspection
Inspect the front and rear suspension and steering
system for damaged, loose or missing parts, signs of
wear or lack of lubrication. Inspect the power steering
lines and hoses for proper hook-up, binding, leaks,
cracks, cha®ng, etc. Clean and then inspect the drive
axle boot seals for damage, tears or leakage. Replace
seals if necessary.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body
near the exhaust system. Look for broken, damaged,
missing or out-of-position parts as well as open seams,
holes, loose connections or other conditions which
could cause a heat build-up in the ¯oor pan or could let
exhaust fumes into the vehicle. See
Engine Exhaust
on page 2-30.
Fuel System Inspection
Inspect the complete fuel system for damage or leaks.
Engine Cooling System Inspection
Inspect the hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
®ttings and clamps; replace as needed. Clean the
outside of the radiator and air conditioning condenser.
To help ensure proper operation, a pressure test of
the cooling system and pressure cap is recommended
at least once a year.
Throttle System Inspection
Inspect the throttle system for interference or binding,
and for damaged or missing parts. Replace parts
as needed. Replace any components that have high
effort or excessive wear. Do not lubricate accelerator
and cruise control cables.
6-23

Checking Coolant............................................5-23
Checking Engine Oil........................................5-14
Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-58
Check...........................................................3-30
Engine Light...............................................3-30
Gages Warning Light...................................3-34
Chemical Paint Spotting...................................5-77
Child Restraints..............................................1-35
Child Restraint Systems...............................1-35
Infants and Young Children...........................1-32
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-41
Older Children.............................................1-29
Securing a Child Restraint Designed for
the LATCH System...................................1-43
Securing a Child Restraint in a Rear
Seat Position...........................................1-43
Securing a Child Restraint in the Right
Front Seat Position...................................1-46
Top Strap Anchor Location............................1-40
Top Strap...................................................1-39
Where to Put the Restraint...........................1-38
Chime Level Adjustment..................................3-79
Cigarette Lighter.............................................3-16
Cleaning Aluminum or Chrome-Plated Wheels.....5-76
Cleaning Exterior Lamps/Lenses.......................5-75
Cleaning Fabric/Carpet....................................5-71
Cleaning Glass Surfaces..................................5-73Cleaning Interior Plastic Components.................5-73
Cleaning the Top of the
Instrument Panel.........................................5-73
Cleaning Tires................................................5-77
Cleaning Vinyl................................................5-73
Cleaning Windshield and Wiper Blades..............5-76
Cleaning........................................................5-71
Inside of Your Vehicle..................................5-71
Outside of Your Vehicle................................5-74
Underbody Maintenance...............................5-77
Weatherstrips..............................................5-74
Climate Control System...................................3-17
Outlet Adjustment........................................3-20
Clutch, Hydraulic.............................................5-21
Compact Disc Messages.................3-48, 3-63, 3-75
Compact Spare Tire........................................5-70
Content Theft-Deferrent....................................2-15
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-36
Coolant.........................................................3-29
Engine Temperature Gage............................3-29
Heater, Engine............................................2-21
Low Warning Light.......................................3-30
Surge Tank Pressure Cap.............................5-24
Cooling System..............................................5-27
Cruise Control.................................................. 3-8
Cupholder(s)..................................................2-35
Current and Past Model Order Forms................7-11
3

Emissions Inspection and Maintenance
Programs...................................................3-32
Engine Compartment Fuse Block......................5-84
Engine Coolant Level Check.............................6-19
Engine Cooling When Trailer Towing..................4-40
Engine Oil Additives........................................5-17
Engine Oil Level Check...................................6-19
Engine..........................................................5-18
Air Cleaner/Filter.........................................5-18
Battery.......................................................5-39
Check and Service Engine Soon Light............3-30
Compartment Overview................................5-12
Coolant Heater............................................2-21
Coolant Temperature Gage...........................3-29
Coolant......................................................5-22
Cooling System Inspection............................6-23
Exhaust.....................................................2-30
Oil .............................................................5-14
Overheating................................................5-25
Starting......................................................2-19
Enhanced Traction System (ETS)........................ 4-8
Active Light................................................3-29
Warning Light.............................................3-28
Entry Lighting.................................................3-15
Express-Down Window....................................2-14
Extender, Safety Belt.......................................1-28
Exterior Lamps...............................................3-12F
Filter.............................................................5-18
Engine Air Cleaner......................................5-18
Finding a PTY Station
(RDS and XMŸ).........................3-43, 3-53, 3-67
Finding a Station....................3-37, 3-41, 3-51, 3-65
Finish Care....................................................5-75
Finish Damage...............................................5-77
Five-Speed....................................................2-25
Fixed Mast Antenna........................................3-78
Flash-to-Pass................................................... 3-6
Flat Tire, Changing.........................................5-61
Flat Tire........................................................5-60
Fluid.............................................................5-20
Automatic Transaxle.....................................5-20
Manual Transaxle........................................5-20
Power Steering...........................................5-33
Windshield Washer......................................5-34
FM Stereo.....................................................3-76
Fog Lamps....................................................3-14
Folding the Seatback........................................ 1-8
Following Distance..........................................4-38
Forward Gears...............................................2-24
Front Reading Lamps......................................3-15
Fuel............................................................... 5-4
Additives...................................................... 5-5
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
5

I
If No Steam Is Coming From Your Engine..........5-26
If Steam Is Coming From Your Engine...............5-25
If the Light Is Flashing.....................................3-31
If the Light Is on Steady..................................3-32
If You Are Stuck in Sand, Mud, Ice or Snow.......4-29
If You Do Decide To Pull A Trailer.....................4-35
If You're Caught in a Blizzard...........................4-27
Ignition Positions.............................................2-17
Ignition Transaxle Lock Check..........................6-22
Infants and Young Children, Restraints...............1-32
In¯ation -- Tire Pressure..................................5-52
Inspection......................................................6-24
Brake System.............................................6-24
Caliper/Knuckle Maintenance.........................6-24
Engine Cooling System................................6-23
Exhaust System..........................................6-23
Fuel System...............................................6-23
Part C - Periodic Maintenance.......................6-23
Steering, Suspension and Front Drive Axle
Boot and Seal.........................................6-23
Throttle System...........................................6-23
Instrument Panel Brightness.............................3-14
Instrument Panel Fuse Block............................5-82
Instrument Panel.............................................3-22
Cluster.......................................................3-22
Overview..................................................... 3-2
Interior Lamps................................................3-14
J
Jump Starting.................................................5-40
K
Key Lock Cylinders Service..............................6-20
Key Release Button (Manual Transaxle).............2-19
Keyless Entry System....................................... 2-3
Keys............................................................... 2-2
L
Lamps On Reminder.......................................3-12
Lamps...........................................................3-12
Exterior......................................................3-12
Interior.......................................................3-14
Lap-Shoulder Belt...................................1-15, 1-23
LATCH System...............................................1-41
Child Restraints...........................................1-41
Securing a Child Restraint Designed for the
LATCH System........................................1-43
Latches, Seatback............................................ 1-6
Leaving Your Vehicle With the Engine Running . . . 2-28
Leaving Your Vehicle.......................................2-10
7