2003 BUICK LESABRE fuel filter

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside of
Your Vehicle..............................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-4
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-6
Filling Your Tank............................................5-7
Filling a Portable Fuel Container.......................5-9
Checking Things Under
the Hood....................................................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Air Cleaner/Filter................................5-18
Automatic Transaxle Fluid..............................5-21
Engine Coolant.............................................5-23
Radiator Pressure Cap..................................5-26
Engine Overheating.......................................5-26
Cooling System............................................5-28
Power Steering Fluid.....................................5-35Windshield Washer Fluid................................5-36
Brakes........................................................5-37
Battery........................................................5-40
Jump Starting...............................................5-42
Headlamp Aiming...........................................5-47
Headlamp Horizontal Aiming...........................5-49
Headlamp Vertical Aiming..............................5-50
Bulb Replacement..........................................5-52
Halogen Bulbs..............................................5-52
Headlamps..................................................5-52
Front Turn Signal Lamps...............................5-53
Taillamps, Turn Signal, and Stoplamps............5-53
Taillamps and Back-Up Lamps.......................5-55
Replacement Bulbs.......................................5-56
Windshield Wiper Blade Replacement..............5-57
Tires..............................................................5-58
In¯ation -- Tire Pressure................................5-58
Check Tire Pressure System..........................5-59
Tire Inspection and Rotation...........................5-60
When It Is Time for New Tires.......................5-62
Buying New Tires.........................................5-62
Uniform Tire Quality Grading..........................5-63
Wheel Alignment and Tire Balance..................5-64
Section 5 Service and Appearance Care
5-1

A. Engine Compartment Fuse Block
B. Windshield Washer Fluid Reservoir
C. Remote Positive Terminal
D. Engine Coolant Recovery Tank
E. Radiator Pressure Cap
F. Engine Oil Dipstick
G. Engine Oil Fill Cap
H. Automatic Transaxle Fluid Dipstick
I. Brake Master Cylinder Reservoir
J. Engine Air Cleaner/Filter
Engine Oil
If the ENGINE OIL
LOW ÐCHECK LEVEL
DIC message appears on
the instrument cluster,
it means you need
to check your engine oil
level right away. For more
information, see
DIC
Warnings and Messages
on page 3-49
.
You should check your engine oil level regularly; this is
an added reminder.
Checking Engine Oil
It's a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil
must be warm and the vehicle must be on level ground.
The engine oil dipstick is
located right behind the
engine fans and in front of
the engine oil ®ller cap.
The top of the dipstick is a
round yellow loop. See
Engine Compartment
Overview on page 5-12for
more information on
location.
Turn off the engine and give the oil several minutes to
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.
5-13

Capacities and Speci®cations
The following approximate capacities are given in English and metric conversions. Please refer toPart D:
Recommended Fluids and Lubricants on page 6-23for more information.
Capacities
ApplicationCapacities
English Metric
Wheel Nut Torque 100 lb-ft 140Y
Automatic Transaxle 7.4 quarts 7.0 L
Engine Cooling System 10.0 quarts 9.5 L
Engine Oil with Filter 4.5 quarts 4.3 L
Fuel Tank 18.5 gallons 70.0 L
Air Conditioning Refrigerant R134a 2.2 lbs 1.0 kg
All capacities are approximate. When adding, be sure to ®ll to the appropriate level, as recommended in this
manual. Recheck ¯uid level after ®lling.
Engine Speci®cations
Engine VIN Code Transmission Spark Plug Gap Firing Order
3.8L V6 K Automatic0.060 inch
(1.52 mm)1-6-5-4-3-2
5-93

Normal Maintenance Replacement Parts
Normal Maintenance Replacement Parts
Part Number
Engine Air Cleaner/Filter A1096C*
Passenger Compartment Air Filter GM Part # 25654414
Engine Oil FilterPF-47*
Fuel FilterGF-627*
Transaxle FilterGM Part # 24206433
PCV ValveGM Part # 17113515
Spark Plugs41±101*
Windshield Wiper Blades
Length
Type22 inches (56.0 cm)
Shepherd's Hook
*ACDelco
žpart number
5-94

A
Accessory Power Outlets.................................3-22
Adding Washer Fluid.......................................5-36
Additional Program Information........................... 7-9
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-85
Adjusting the Speakers (Balance/Fade)......3-57, 3-65
Air Bag Systems.............................................1-46
How Does an Air Bag Restrain?....................1-52
Servicing Your Air Bag-Equipped Vehicle.........1-54
What Makes an Air Bag In¯ate?....................1-51
What Will You See After an Air
Bag In¯ates?...........................................1-52
When Should an Air Bag In¯ate?...................1-50
Where Are the Air Bags?..............................1-49
Air Bag .........................................................3-36
Readiness Light..........................................3-36
Air Cleaner/Filter, Engine.................................5-18
AM ...............................................................3-78
Antenna, Diversity Antenna System...................3-81
Antenna, XMŸ Satellite Radio
Antenna System..........................................3-81
Anti-lock Brake System (ABS)............................ 4-7
Anti-Lock Brake, System Warning Light..............3-38
Appearance Care............................................5-77
Care of Safety Belts....................................5-80
Chemical Paint Spotting...............................5-83Appearance Care (cont.)
Cleaning the Inside of Your Vehicle................5-77
Cleaning the Outside of Your Vehicle..............5-80
Finish Damage............................................5-83
Sheet Metal Damage...................................5-82
Underbody Maintenance...............................5-83
Vehicle Care/Appearance Materials................5-84
Weatherstrips..............................................5-80
Ashtrays........................................................3-23
Audio System(s).............................................3-55
Audio Steering Wheel Controls......................3-78
Care of Your Cassette Tape Player................3-79
Care of Your CD Player...............................3-80
Care of Your CDs........................................3-80
Chime Level Adjustment...............................3-81
Diversity Antenna System.............................3-81
Personal Choice Radio Controls....................3-77
Radio with Cassette and CD.........................3-62
Radio with CD............................................3-56
Setting the Time..........................................3-55
Theft-Deterrent Feature................................3-77
Trunk-Mounted CD Changer..........................3-73
Understanding Radio Reception.....................3-78
XMŸ Satellite Radio Antenna System............3-81
Automatic Door Locks.....................................3-51
Automatic Level Control...................................4-35
Automatic Operation........................................3-27
Automatic Transaxle Check..............................6-18
1

Highway Hypnosis...........................................4-23
Hill and Mountain Roads..................................4-24
Hitches..........................................................4-38
HomeLink Transmitter, Programming..................2-39
HomeLink
žTransmitter....................................2-38
Hood............................................................5-10
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-7
How to Add Coolant to the Coolant Recovery
Tank ..........................................................5-30
How to Add Coolant to the Radiator..................5-31
How to Add Fluid............................................5-23
How to Check Power Steering Fluid..................5-36
How to Check........................................5-21, 5-59
How to Inspect the Engine Air Cleaner/Filter.......5-18
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-11
Hydroplaning..................................................4-19
I
If No Steam Is Coming From Your Engine..........5-27
If Steam Is Coming From Your Engine...............5-26
If the Light Is Flashing.....................................3-41
If the Light Is On Steady.................................3-42If You Are Stuck in Sand, Mud, Ice or Snow.......4-30
If You Do Decide To Pull A Trailer.....................4-36
If You're Caught in a Blizzard...........................4-28
Ignition Positions.............................................2-22
Ignition Transaxle Lock Check..........................6-20
Inadvertent Power Battery Saver.......................3-19
Infants and Young Children, Restraints...............1-29
In¯ation -- Tire Pressure..................................5-58
Inspection......................................................6-22
Brake System.............................................6-22
Engine Cooling System................................6-22
Exhaust System..........................................6-21
Fuel System...............................................6-22
Part C - Periodic Maintenance.......................6-21
Steering, Suspension and Front Drive Axle
Boot and Seal.........................................6-21
Throttle System...........................................6-22
Instrument Panel Brightness.............................3-17
Instrument Panel.............................................3-33
Cluster.......................................................3-33
Overview..................................................... 3-4
Interior Lamps................................................3-17
J
Jump Starting.................................................5-42
7