2003 CHEVROLET EXPRESS CARGO VAN fuel additives

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......................................................5-9
Hood Release..............................................5-10
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Air Cleaner/Filter................................5-17
Automatic Transmission Fluid.........................5-19
Engine Coolant.............................................5-21
Radiator Pressure Cap..................................5-24
Engine Overheating.......................................5-24Cooling System............................................5-26
Engine Fan Noise.........................................5-34
Power Steering Fluid.....................................5-34
Windshield Washer Fluid................................5-35
Brakes........................................................5-37
Battery........................................................5-40
Jump Starting...............................................5-41
All-Wheel Drive..............................................5-46
Rear Axle.......................................................5-47
Front Axle......................................................5-48
Noise Control System.....................................5-49
Tampering with Noise Control System
Prohibited.................................................5-49
Bulb Replacement..........................................5-50
Halogen Bulbs..............................................5-50
Headlamps..................................................5-50
Front Turn Signal, Sidemarker and Parking
Lamps.....................................................5-52
Taillamps.....................................................5-52
Replacement Bulbs.......................................5-54
Section 5 Service and Appearance Care
5-1

Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that will help
prevent engine and fuel system deposits from forming,
allowing your emission control system to work
properly. You should not have to add anything to your
fuel. Gasolines containing oxygenates, such as
ethers and ethanol, and reformulated gasolines may be
available in your area to contribute to clean air.
General Motors recommends that you use these
gasolines, particularly if they comply with the
speci®cations described earlier.
Notice:Your vehicle was not designed for fuel that
contains methanol. Don't use fuel containing
methanol. It can corrode metal parts in your fuel
system and also damage the plastic and rubber
parts. That damage wouldn't be covered under your
warranty.Some gasolines that are not reformulated for
low emissions may contain an octane-enhancing
additive called methylcyclopentadienyl manganese
tricarbonyl (MMT); ask the attendant where you
buy gasoline whether the fuel contains MMT. General
Motors does not recommend the use of such gasolines.
Fuels containing MMT can reduce the life of spark
plugs and the performance of the emission control
system may be affected. The malfunction indicator lamp
may turn on. If this occurs, return to your authorized
GM dealer for service.
Fuels in Foreign Countries
If you plan on driving in another country outside the
United States or Canada, the proper fuel may be hard
to ®nd. Never use leaded gasoline or any other fuel
not recommended in the previous text on fuel. Costly
repairs caused by use of improper fuel wouldn't be
covered by your warranty.
To check the fuel availability, ask an auto club, or
contact a major oil company that does business in the
country where you'll be driving.
5-6

A
Accessory Power Outlets.................................3-18
Adding Equipment to Your Air Bag-Equipped
Vehicle.......................................................1-74
Adding Washer Fluid.......................................5-36
Additional Program Information........................... 7-8
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-91
Add-On Equipment..........................................4-31
Adjusting the Speakers (Balance/Fade).....3-43, 3-46,
3-51, 3-62
Air Bag System..............................................1-63
Adding Equipment to Your Air Bag-Equipped
Vehicle...................................................1-74
Air Bag Off Switch.......................................1-70
How Does an Air Bag Restrain?....................1-68
Servicing Your Air Bag-Equipped Vehicle.........1-73
What Makes an Air Bag In¯ate?....................1-68
What Will You See After an Air
Bag In¯ates?...........................................1-68
When Should an Air Bag In¯ate?...................1-67
Where Are the Air Bags?..............................1-65
Air Bag Systems.............................................1-68
Air Bag .........................................................3-28
Off Light.....................................................3-28
Readiness Light..........................................3-27Air Cleaner/Filter, Engine.................................5-17
All-Wheel Drive (AWD) System.........................2-26
All-Wheel Drive...............................................5-46
AM-FM Radio.................................................3-41
AM ...............................................................3-73
Antenna, Fixed Mast.......................................3-75
Anti-Lock Brake, System Warning Light..............3-32
Anti-lock Brake System..................................... 4-6
Appearance Care............................................5-80
Care of Safety Belts....................................5-83
Chemical Paint Spotting...............................5-87
Cleaning the Inside of Your Vehicle................5-80
Cleaning the Outside of Your Vehicle..............5-83
Finish Damage............................................5-86
Sheet Metal Damage...................................5-86
Underbody Maintenance...............................5-87
Vehicle Care/Appearance Materials................5-88
Weatherstrips..............................................5-83
Ashtrays........................................................3-18
Audio System(s).............................................3-40
AM-FM Radio.............................................3-41
Care of Your Cassette Tape Player................3-74
Care of Your CD Player...............................3-75
Care of Your CDs........................................3-75
Chime Level Adjustment...............................3-75
Fixed Mast Antenna.....................................3-75
Radio with Cassette and CD.........................3-48
1

F
Filter.............................................................5-17
Engine Air Cleaner......................................5-17
Finding a PTY Station.............................3-52, 3-63
Finding a Station....................3-42, 3-44, 3-49, 3-60
Finish Care....................................................5-84
Finish Damage...............................................5-86
Fixed Mast Antenna........................................3-75
Flash-To-Pass Feature....................................... 3-9
Flat Tire, Changing.........................................5-65
Flat Tire........................................................5-64
Floor Console Fuse Block................................5-92
Fluid.............................................................5-19
Automatic Transmission................................5-19
Power Steering...........................................5-34
Windshield Washer......................................5-35
FM ...............................................................3-73
Following Distance..........................................4-41
Footnotes........................................................ 6-5
Front Axle......................................................5-48
Fuel Regulator................................................2-22
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-9Fuel (cont.)
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-39
Gasoline Octane........................................... 5-4
Gasoline Speci®cations.................................. 5-5
System Inspection.......................................6-16
Fuses...........................................................5-92
Fuses and Circuit Breakers...........................5-92
Windshield Wiper.........................................5-91
G
Gage............................................................3-38
Check Gages Warning Light..........................3-38
Engine Coolant Temperature.........................3-32
Fuel..........................................................3-39
Oil Pressure...............................................3-36
Speedometer..............................................3-25
Voltmeter Gage...........................................3-30
Gasoline......................................................... 5-4
Octane........................................................ 5-4
Speci®cations............................................... 5-5
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
6