2003 CHEVROLET SILVERADO Owners Manual

Fuses Usage
A/C COMP Air Conditioning Compressor
A/C COMPAir Conditioning Compressor
Relay
RR WPR Not Used
RADIO Audio System
SEO B1Mid Bussed Electrical Center,
Rear Heated Seats,
HomeLink
LO HDLP-LT Headlamp Low Beam-Left
BTSIBrake Transmission Shift
Interlock System
CRANK Starting System
LO HDLP-RT Headlamp Low Beam-Right
FOG LP Fog Lamp RelayFuses Usage
FOG LP Fog Lamps
HORN Horn Relay
W/S WASHWindshield Washer Pump
Relay
W/S WASH Windshield Washer Pump
INFOOnStar/Rear Seat
Entertainment
RADIO AMP Radio Ampli®er
RH HID Not Used
HORN Horn
EAP Not Used
TREC All-Wheel Drive Module
SBA Supplemental Brake Assist
5-117

Capacities and Speci®cations
Please refer toPart D: Recommended Fluids and Lubricants on page 6-19for more information. All capacities are
approximate. When adding see the refrigerant charge label under the hood for charge capacity information and
requirements.
Capacities and Speci®cations
Engine Type VIN Code Spark Plug Gap
VORTECŸ 4300 V6 V6 W 0.060 inches (1.52 mm)
VORTECŸ 4800 V8 V8 V 0.060 inches (1.52 mm)
VORTECŸ 5300 V8 V8 T 0.060 inches (1.52 mm)
VORTECŸ 6000 V8 V8 U 0.060 inches (1.52 mm)
VORTECŸ 6000 V8 V8 N 0.060 inches (1.52 mm)
VORTECŸ 8100 V8 V8 G 0.060 inches (1.52 mm)
Model Description Torque
C/K 1500 & C/K 2500 6 Bolts (14 mm) 140 lb ft (190Y)
C/K 3500 8 bolts (14 mm) 140 lb ft (190Y)
Tire PressureSee the Certi®cation/Tire label on the rear edge of the driver's
door or the incomplete vehicle document in the cab.
5-118

ApplicationCapacities
English Metric
Cooling System
After re®ll, the level must be rechecked. See ªCooling Systemº in the Index.
VORTECŸ 4300 V6 Automatic Transmission 12.6 quarts (11.9 L)
VORTECŸ 4300 V6 Manual Transmission 12.9 quarts (12.2 L)
VORTECŸ 4800 V8 Automatic Transmission 13.4 quarts (12.7 L)
VORTECŸ 4800 V8 Manual Transmission 13.7 quarts (13.0 L)
VORTECŸ 5300 V8 Automatic Transmission 13.4 quarts (12.7 L)
VORTECŸ 5300 V8** Automatic Transmission 14.9 quarts (14.1 L)
VORTECŸ 6000 V8 Automatic Transmission 14.8 quarts (14.0 L)
VORTECŸ 6000 V8* Automatic Transmission 14.4 quarts (13.6 L)
VORTECŸ 6000 V8 Manual Transmission 15.2 quarts (14.4 L)
VORTECŸ 6000 V8* Manual Transmission 14.8 quarts (14.0 L)
VORTECŸ 8100 V8 Manual Transmission 21.1 quarts (20.0 L)
VORTECŸ 8100 V8 Automatic Transmission 20.7 quarts (19.6 L)
* Vehicles equipped with the optional engine oil cooler.
** Vehicles equipped with the optional air conditioner.
Engine Oil With Filter
After re®ll, the level must be rechecked. Add enough engine oil so that the ¯uid is within the proper operating
range. See
Engine Oil on page 5-16.
VORTECŸ 4300 V6 (Vin W) 4.5 quarts (4.3 L)
VORTECŸ 4800 V8 ( Vin V) 6.0 quarts (5.7 L)
VORTECŸ 5300 V8 (Vin T) 6.0 quarts (5.7 L)
VORTECŸ 6000 V8 (Vin U) 6.0 quarts (5.7 L)
5-119

ApplicationCapacities
English Metric
VORTECŸ 6000 V8 (Vin N) 6.0 quarts (5.7 L)
VORTECŸ 8100 V8 (Vin G) 6.5 quarts (6.1 L)
Fuel Tank
Short Bed 26.0 gallons (98 L)
Short-Short Box Crew Cab 26.0 gallons (98 L)
Long Bed 34.0 gallons 128 L
Chassis Cab (pickup Box Delete) 34.0 gallons (128 L)
Chassis Cab 350027.0 gallons
23.0 gallons(102 L) (front)
(87 L) (rear)
Chassis Cab 3500 (California)24.0 gallons
23.0 gallons(90 L) (front)
(87 L) (rear)
Chassis Cab 3500 27.0 gallons (102 L (front)
Chassis Cab 3500 (California) 27.0 gallons (102 L) (front)
Chassis Cab 3500HD23.0 gallons
18.0 gallons(87 L) (front)
(68 L) (rear)
Chassis Cab 3500HD 23.0 gallons (87 L) (front)
Air Conditioning Refrigerant Capacity
Air Conditioning Refrigerant R-134a 1.6 lbs (0.7 kg)
5-120

Normal Maintenance Replacement Parts
VIN Code W V T
Oil Filter* PF47 PF44 PF44
Engine Air Cleaner /Filter* A1519C² A1519C² A1519C²
PCV Valve* CV769C CV2001±C CV2001±C
Spark Plugs 41±932*41±974*
/PZTR5A15²²41±974*
/PZTR5A15²²
Fuel Filter* GF626 GF626 GF626
Wiper Blades** 15153642 15153642 15153642
Wiper Blade Type ITTA ITTA ITTA
Wiper Blade Length22 inches
(56.0 cm)22 inches
(56.0 cm)22 inches
(56.0 cm)
*ACDelco
žpart number
** GM part number
***Denso part number
²A1518C high-capacity air cleaner ®lter may be substituted.
²²NGK part number
5-121

VIN Code U N G
Oil Filter* PF44 PF44 PF454
Engine Air Cleaner /Filter* A1518C A1518C A1518C
Passenger Compartment
Air Filter Kit**52485513 52485513 52485513
PCV Valve* CV2001±C CV2001±C Ð
Spark Plugs41±974*
/PZTR5A15²²41±974*
/PZTR5A15²²PTJ14R15***²²
Fuel Filter* GF626 GF626 GF626
Wiper Blades** 15153642 15153642 15153642
Wiper Blade Type ITTA ITTA ITTA
Wiper Blade Length22 inches
(56.0 cm)22 inches
(56.0 cm)22 inches
(56.0 cm)
*ACDelco
žpart number
** GM part number
***Denso part number
²A1518C high-capacity air cleaner ®lter may be substituted.
²²NGK part number
5-122

Maintenance Schedule......................................6-2
Introduction...................................................6-2
Your Vehicle and the Environment....................6-2
Maintenance Requirements..............................6-2
How This Section is Organized.........................6-3
Part A: Scheduled Maintenance Services...........6-4
Using Your Maintenance Schedule....................6-4
Scheduled Maintenance...................................6-5
Part B: Owner Checks and Services................6-12
At the First 100, 1,000 and 6,000 Miles
(160, 1 600 and 10 000km)........................6-12
At Each Fuel Fill..........................................6-12
At Least Once a Month.................................6-12
At Least Twice a Year...................................6-13
At Least Once a Year...................................6-14Part C: Periodic MaintenanceInspections.........6-17
Steering and Suspension Inspection................6-17
Exhaust System Inspection............................6-17
Fuel System Inspection..................................6-17
Engine Cooling System Inspection...................6-17
Throttle System Inspection
(V6 Only).................................................6-18
Transfer Case and Front Axle (All-Wheel
Drive) Inspection.......................................6-18
Transfer Case and Front Axle (Four-Wheel
Drive) Inspection.......................................6-18
Brake System Inspection................................6-18
Part D: Recommended Fluids and Lubricants. . . .6-19
Part E: Maintenance Record...........................6-22
Section 6 Maintenance Schedule
6-1

Maintenance Schedule
Introduction
Important: Keep engine oil at the proper level and
change as recommended.
Have you purchased the GM Protection Plan? The Plan
supplements your new vehicle warranties. See your
Warranty and Owner Assistance booklet or your dealer
for details.
Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep your
vehicle in good working condition, but also helps the
environment. Improper vehicle maintenance can
even affect the quality of the air we breathe. Improper
¯uid levels or the wrong tire in¯ation can increase
the level of emissions from your vehicle. To help protect
our environment, and to keep your vehicle in good
condition, be sure to maintain your vehicle properly.
Maintenance Requirements
Maintenance intervals, checks, inspections and
recommended ¯uids and lubricants as prescribed in this
manual are necessary to keep your vehicle in good
working condition. Any damage caused by failure
to follow scheduled maintenance may not be covered by
warranty.
6-2