2004 CHEVROLET EXPRESS hood release

Service............................................................5-3
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of Your
Vehicle......................................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-5
California Fuel...............................................5-6
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....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Oil Life System..................................5-16
Engine Air Cleaner/Filter................................5-17
Automatic Transmission Fluid.........................5-19
Engine Coolant.............................................5-22
Radiator Pressure Cap..................................5-24
Engine Overheating.......................................5-24
Cooling System............................................5-26
Engine Fan Noise.........................................5-32
Power Steering Fluid.....................................5-32
Windshield Washer Fluid................................5-33Brakes........................................................5-34
Battery........................................................5-37
Jump Starting...............................................5-38
All-Wheel Drive..............................................5-43
Rear Axle.......................................................5-44
Front Axle......................................................5-44
Noise Control System.....................................5-45
Tampering with Noise Control System
Prohibited.................................................5-45
Bulb Replacement..........................................5-46
Halogen Bulbs..............................................5-47
Headlamps..................................................5-47
Front Turn Signal, Sidemarker and
Parking Lamps..........................................5-48
Center High-Mounted Stoplamp (CHMSL).........5-49
Taillamps.....................................................5-49
Replacement Bulbs.......................................5-50
Windshield Wiper Blade Replacement..............5-51
Tires..............................................................5-52
Tire Sidewall Labelling...................................5-53
Tire Terminology and Denitions.....................5-56
Ination - Tire Pressure.................................5-58
Dual Tire Operation.......................................5-59
Tire Inspection and Rotation...........................5-60
When It Is Time for New Tires.......................5-62
Section 5 Service and Appearance Care
5-1

Hood Release
To open the hood, do the following:
1. Pull the handle with
this symbol on it. It is
located in front of
the driver’s side door
frame near the oor.
2. Then go to the front of the vehicle and lift up the
secondary hood release, which is located
underneath the middle of the hood.3. Lift the hood, release
the hood prop from its
retainer and put the
hood prop into the slot
in the hood.
If your vehicle has an underhood lamp, it will
automatically come on and stay on until the hood
is closed.
Before closing the hood, be sure all of the ller caps are
on properly. Then lift the hood to relieve pressure on
the hood prop. Remove the hood prop from the
slot in the hood and return the prop to its retainer. Let
the hood down and close it rmly.
5-11

Halogen Bulbs
{CAUTION:
Halogen bulbs have pressurized gas inside and
can burst if you drop or scratch the bulb. You or
others could be injured. Be sure to read and
follow the instructions on the bulb package.
Headlamps
To remove the headlamp assembly from the vehicle and
access the bulbs, do the following:
1. Open the hood. SeeHood Release on page 5-11
for more information.
2. Remove the two bolts from the headlamp assembly.
3. Remove the two pins on the top of the headlamp
assembly. To remove the pins, turn the outer pin
clockwise and pull it straight up. To remove
the inner pin, turn it counterclockwise and pull it
straight up.
4. Lift the inboard side of the headlamp to release the
inboard tab from the radiator support.5. Lift the outboard side of the headlamp to release
the outboard tab from the radiator support.
6. Lower the headlamp to allow the vertical adjustor to
clear tie bar.
7. Turn the headlamp forward and upward to remove
it from the grille.
8. Turn the bulb connector counterclockwise and pull it
out of the housing.
9. Without removing the headlamp assembly itself,
remove the bulb socket from the back of the
headlamp on the driver’s side.
5-47

Maintenance Footnotes
†The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
#Lubricate the front suspension, kingpin bushings,
steering linkage and rear driveline center splines.
(a)Visually inspect brake lines and hoses for proper
hook-up, binding, leaks, cracks, chang, etc. Inspect
disc brake pads for wear and rotors for surface
condition. Inspect other brake parts, including calipers,
parking brake, etc.
(b)Visually inspect front and rear suspension and
steering system for damaged, loose or missing parts,
signs of wear or lack of lubrication. Inspect power
steering lines and hoses for proper hook-up, binding,
leaks, cracks, chang, etc.
(c)Visually inspect hoses and have them replaced if
they are cracked, swollen or deteriorated. Inspect
all pipes, ttings and clamps; replace with genuine
GM parts as needed. To help ensure proper operation,a pressure test of the cooling system and pressure cap
and cleaning the outside of the radiator and air
conditioning condenser is recommended at least
once a year.
(d)Visually inspect wiper blades for wear or cracking.
Replace blade inserts that appear worn or damaged
or that streak or miss areas of the windshield.
(e)Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced. Also look for any opened or broken airbag
coverings, and have them repaired or replaced.
(The airbag system does not need regular maintenance.)
(f)Lubricate all key lock cylinders, hood hinges, hood
prop rod pivot, hood latch assembly, secondary
latch, pivots, spring anchor, release pawl, rear
compartment hinges, latches, locks, fuel door hinge and
any moving seat hardware. More frequent lubrication
may be required when exposed to a corrosive
environment. Applying silicone grease on weatherstrips
with a clean cloth will make them last longer, seal
better and not stick or squeak.
6-8

Headlamps (cont.)
Front Turn Signal, Sidemarker and
Parking Lamps.........................................5-48
Halogen Bulbs............................................5-47
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-14
Heater...........................................................3-18
Highbeam On Light.........................................3-37
Highway Hypnosis...........................................4-21
Hill and Mountain Roads..................................4-22
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-6
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-15
I
Ignition Positions.............................................2-19
Infants and Young Children, Restraints...............1-33
Ination -- Tire Pressure..................................5-58
Instrument Panel
Brightness..................................................3-15
Cluster.......................................................3-23
Overview..................................................... 3-4
J
Jump Starting.................................................5-38
K
Keyless Entry System....................................... 2-3
Keys............................................................... 2-2
L
Labelling, Tire Sidewall....................................5-53
Lamps
Battery Run-Down Protection.........................3-16
Dome........................................................3-15
Dome Lamp Override...................................3-15
Exterior......................................................3-13
Reading.....................................................3-16
LATCH System
Child Restraints...........................................1-49
Securing a Child Restraint Designed for
the LATCH System...................................1-51
Light
Airbag Off..................................................3-26
Airbag Readiness........................................3-25
Anti-Lock Brake System Warning...................3-30
6