2004 CHEVROLET SILVERADO power steering fluid

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....................................5-6
California Fuel...............................................5-6
Additives.......................................................5-7
Fuel E-85 (85% Ethanol).................................5-8
Fuels in Foreign Countries...............................5-9
Filling Your Tank............................................5-9
Filling a Portable Fuel Container.....................5-11
Checking Things Under the Hood....................5-12
Hood Release..............................................5-12
Engine Compartment Overview.......................5-14
Engine Oil...................................................5-20
Engine Air Cleaner/Filter................................5-25
Automatic Transmission Fluid
(Except Allison Transmission
®) ....................5-27
Automatic Transmission Fluid
(Allison Transmission
®) ...............................5-30
Manual Transmission Fluid.............................5-33
Hydraulic Clutch...........................................5-34Engine Coolant.............................................5-35
Coolant Surge Tank Pressure Cap..................5-38
Engine Overheating.......................................5-38
Cooling System............................................5-41
Engine Fan Noise.........................................5-46
Power Steering Fluid.....................................5-46
Windshield Washer Fluid................................5-47
Brakes........................................................5-49
Battery........................................................5-52
Jump Starting...............................................5-53
All-Wheel Drive..............................................5-58
Rear Axle.......................................................5-59
Four-Wheel Drive............................................5-60
Noise Control System.....................................5-61
Tampering with Noise Control System
Prohibited.................................................5-61
Bulb Replacement..........................................5-63
Halogen Bulbs..............................................5-63
Headlamps..................................................5-63
Front Turn Signal, Sidemarker and
Daytime Running Lamps.............................5-65
Roof Marker Lamps......................................5-66
Center High-Mounted Stoplamp (CHMSL)
and Cargo Lamp.......................................5-68
Section 5 Service and Appearance Care
5-1

A. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-25.
B. Coolant Surge Tank. SeeEngine Coolant on
page 5-35.
C. Air Filter Restriction Indicator (If Equipped). See
Engine Air Cleaner/Filter on page 5-25.
D. Engine Oil Dipstick. SeeEngine Oil on page 5-20.
E. Automatic Transmission Dipstick (If equipped).
SeeAutomatic Transmission Fluid (Except Allison
Transmission
®) on page 5-27orAutomatic
Transmission Fluid (Allison Transmission®)on
page 5-30.
F. Fan. SeeCooling System on page 5-41.
G. Engine Oil Fill. SeeEngine Oil on page 5-20.H. Power Steering Fluid Reservoir. SeePower Steering
Fluid on page 5-46.
I. Remote Negative (−) Terminal (GND). SeeJump
Starting on page 5-53.
J. Remote Positive (+) Terminal. SeeJump Starting on
page 5-53.
K. Brake Fluid Reservoir. SeeBrakes on page 5-49.
L. Clutch Fluid Reservoir (If Equipped). SeeHydraulic
Clutch on page 5-34.
M. Underhood Fuse Block. SeeFuses and Circuit
Breakers on page 5-123.
N. Battery. SeeBattery on page 5-52.
O. Windshield Washer Fluid Reservoir. SeeWindshield
Washer Fluid on page 5-47.
5-15

A. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-25.
B. Coolant Surge Tank. SeeEngine Coolant on
page 5-35.
C. Air Filter Restriction Indicator (If Equipped). See
Engine Air Cleaner/Filter on page 5-25.
D. Engine Oil Dipstick. SeeEngine Oil on page 5-20.
E. Automatic Transmission Dipstick (If Equipped).
SeeAutomatic Transmission Fluid (Except Allison
Transmission
®) on page 5-27orAutomatic
Transmission Fluid (Allison Transmission®)on
page 5-30.
F. Engine Oil Fill. SeeEngine Oil on page 5-20.
G. Fan. SeeCooling System on page 5-41.H. Remote Negative (−) Terminal (GND). SeeJump
Starting on page 5-53.
I. Power Steering Fluid Reservoir. SeePower Steering
Fluid on page 5-46.
J. Remote Positive (+) Terminal. SeeJump Starting on
page 5-53.
K. Brake Fluid Reservoir. SeeBrakes on page 5-49.
L. Clutch Fluid Reservoir (If Equipped). SeeHydraulic
Clutch on page 5-34.
M. Underhood Fuse Block. SeeFuses and Circuit
Breakers on page 5-123.
N. Battery. SeeBattery on page 5-52.
O. Windshield Washer Fluid Reservoir. SeeWindshield
Washer Fluid on page 5-47.
5-17

A. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-25.
B. Coolant Surge Tank. SeeEngine Coolant on
page 5-35.
C. Air Filter Restriction Indicator (If Equipped). See
Engine Air Cleaner/Filter on page 5-25.
D. Engine Oil Dipstick. SeeEngine Oil on page 5-20.
E. Automatic Transmission Dipstick (If Equipped).
SeeAutomatic Transmission Fluid (Except Allison
Transmission
®) on page 5-27orAutomatic
Transmission Fluid (Allison Transmission®)on
page 5-30.
F. Engine Oil Fill. SeeEngine Oil on page 5-20.
G. Fan. SeeCooling System on page 5-41.H. Remote Negative (−) Terminal (GND). SeeJump
Starting on page 5-53.
I. Remote Positive (+) Terminal. SeeJump Starting on
page 5-53.
J. Power Steering Fluid Reservoir. SeePower Steering
Fluid on page 5-46.
K. Brake Fluid Reservoir. SeeBrakes on page 5-49.
L. Clutch Fluid Reservoir (If Equipped). SeeHydraulic
Clutch on page 5-34.
M. Underhood Fuse Block. SeeFuses and Circuit
Breakers on page 5-123.
N. Battery. SeeBattery on page 5-52.
O. Windshield Washer Fluid Reservoir. SeeWindshield
Washer Fluid on page 5-47.
5-19

6. Then replace the
pressure cap. Be sure
the pressure cap is
hand-tight and
fully seated.
Engine Fan Noise
Your vehicle has a clutched engine cooling fan. When
the clutch is engaged, the fan spins faster to provide
more air to cool the engine. In most everyday driving
conditions, the fan is spinning slower and the clutch is
not fully engaged. This improves fuel economy and
reduces fan noise. Under heavy vehicle loading, trailer
towing and/or high outside temperatures, the fan
speed increases as the clutch more fully engages.
So you may hear an increase in fan noise. This
is normal and should not be mistaken as the
transmission slipping or making extra shifts. It is
merely the coolingsystem functioning properly. The fan will slow
down when additional cooling is not required and the
clutch disengages.
You may also hear this fan noise when you start
the engine. It will go away as the fan clutch
partially disengages.
Power Steering Fluid
8100 V8 Engine
5-46

When to Check Power Steering Fluid
It is not necessary to regularly check power steering uid
unless you suspect there is a leak in the system or
you hear an unusual noise. A uid loss in this system
could indicate a problem. Have the system inspected
and repaired. SeeEngine Compartment Overview
on page 5-14for reservoir location.
How to Check Power Steering Fluid
Turn the key off, let the engine compartment cool down,
wipe the cap and the top of the reservoir clean, then
unscrew the cap and wipe the dipstick with a clean rag.
Replace the cap and completely tighten it. Then
remove the cap again and look at the uid level on
the dipstick.
The level should be at the FULL COLD mark.
If necessary, add only enough uid to bring the
level up to the mark.
What to Use
To determine what kind of uid to use, see
Recommended Fluids and Lubricants on page 6-13.
Always use the proper uid. Failure to use the proper
uid can cause leaks and damage hoses and seals.
Windshield Washer Fluid
What to Use
When you need windshield washer uid, be sure to read
the manufacturer’s instructions before use. If you will be
operating your vehicle in an area where the temperature
may fall below freezing, use a uid that has sufficient
protection against freezing. SeeEngine Compartment
Overview on page 5-14for reservoir location. All Other Engines
5-47

Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name,
part number or specication may be obtained from
your dealer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certied for Gasoline Engines
starburst symbol. GM Goodwrench
oil meets all the requirements for
your vehicle. To determine the
proper viscosity for your vehicle’s
engine, seeEngine Oil on
page 5-20.
Engine Coolant50/50 mixture of clean, drinkable
water and use only
DEX-COOL
®Coolant. SeeEngine
Coolant on page 5-35.
Usage Fluid/Lubricant
Hydraulic
Brake SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
Washer SolventGM Optikleen
®Washer Solvent.
Hydraulic
Clutch System
(5–Speed
Trans.)Hydraulic Clutch Fluid
(GM Part No. U.S. 12345347, in
Canada 10953517) or equivalent
DOT-3 brake uid.
Hydraulic
Clutch System
(6–Speed
Trans.)Hydraulic Clutch Fluid. Use only
GM Part No. U.S. 88958860, in
Canada 88901244, DOT-4
brake uid.
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184, in
Canada 89021186).
Manual
Transmission
(5–Speed with
Low Gear,
RPO MW3)GM Goodwrench Synthetic Manual
Transmission Fluid
(GM Part No. U.S. 12346190, in
Canada 10953477) or equivalent
SAE 75W-85 GL-4 gear oil.
6-13

A
Accessory Power Outlets.................................3-19
Adding a Snow Plow or Similar Equipment.........4-63
Adding Washer Fluid.......................................5-48
Additional Program Information........................... 7-9
Additives, Fuel................................................. 5-7
Add-On Electrical Equipment...........................5-123
Add-On Equipment..........................................4-62
Adjusting the Speakers
(Balance/Fade)..................3-75, 3-79, 3-90, 3-104
After Off-Road Driving.....................................4-35
Air Bag
Off Light.....................................................3-37
Passenger Status Indicator...........................3-40
Readiness Light..........................................3-36
Air Bag Systems.............................................1-67
Adding Equipment to Your Air Bag-Equipped
Vehicle...................................................1-83
Air Bag Off Switch.......................................1-73
How Does an Air Bag Restrain?....................1-71
Passenger Sensing System...........................1-78
Servicing Your Air Bag-Equipped Vehicle.........1-83
What Makes an Air Bag Inate?....................1-71
What Will You See After an Air Bag Inates?......1-72
When Should an Air Bag Inate?...................1-70
Where Are the Air Bags?..............................1-68
Air Cleaner/Filter, Engine.................................5-25
Air Conditioning..............................................3-30
Airbag Sensing and Diagnostic Module (SDM)...... 7-9All-Wheel Drive...............................................5-58
All-Wheel Drive (AWD) System.........................2-48
AM .............................................................3-128
AM-FM Radio.................................................3-73
Antenna, Fixed Mast......................................3-130
Antenna, XM™ Satellite Radio
Antenna System........................................3-130
Anti-lock Brake System..................................... 4-6
Anti-Lock Brake, System Warning Light..............3-44
Appearance Care..........................................5-114
Care of Safety Belts...................................5-117
Chemical Paint Spotting..............................5-120
Cleaning the Inside of Your Vehicle..............5-114
Cleaning the Outside of Your Vehicle............5-117
Finish Damage..........................................5-120
Sheet Metal Damage..................................5-120
Underbody Maintenance.............................5-120
Vehicle Care/Appearance Materials...............5-121
Weatherstrips............................................5-117
Approaching a Hill..........................................4-28
Ashtrays........................................................3-20
Audio Output................................................3-116
Audio System(s).............................................3-72
AM-FM Radio.............................................3-73
Audio Steering Wheel Controls....................3-127
Care of Your Cassette Tape Player...............3-129
Care of Your CD and DVD Player................3-130
Care of Your CDs and DVDs.......................3-130
Chime Level Adjustment.............................3-130
Fixed Mast Antenna...................................3-130
1