2004 GMC SIERRA Owner's Manual

Device Usage
SEO Special Equipment Option
TRAILER Trailer Brake Wiring
UPFIT Up®tter (Not Used)
SL RIDERide Control Harness
Connection
HDLR 2 Headliner Wiring Connector
BODY Body Wiring Connector
DEFOG Rear Defogger Relay
HDLNR 1 Headliner Wiring Connector 1
SPARE RELAY Not Used
CB SEATDriver and Passenger Seat
Module Circuit Breaker
CB RT DOORRight Power Windows Circuit
Breaker
SPARE Not Used
INFOInfotainment Harness
ConnectionUnderhood Fuse Block
The underhood fuse block in the engine compartment
on the driver's side of the vehicle near the battery.
Lift the cover for access to the fuse/relay block.
To remove fuses hold the end of the fuse between your
thumb and index ®nger and pull straight out.
See
Engine Compartment Overview on page 5-12for
more information on its location.
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5-130

*1Ð Gasoline Engine and Diesel Engine.
*2Ð Gasoline Engine; ECMRPV Ð Diesel Engine.
*3Ð Gasoline Engine; FUEL HT Ð Diesel Engine.
*4Ð Gasoline Engine; ECM I Ð Diesel Engine.
*5Ð IGN/EDU
Fuses Usage
GLOW PLUGDiesel Glow Plugs and Intake
Air Heater
CUST FEED Gasoline Accessory Power
STUD #1Auxiliary Power (Single
Battery and Diesels Only)/
Dual Battery (TP2) Do not
install fuse.
MBECMid Bussed Electrical Center
Power Feed, Front Seats,
Right Doors
BLOWER Front Climate Control Fan
LBECLeft Bussed Electrical Center,
Door Modules, Door Locks,
Auxiliary Power OutletÐRear
Cargo Area and Instrument
Panel
Fuses Usage
STUD 2Accessory Power/Trailer
Wiring Brake Feed
ABS Anti-Lock Brakes
VSES/ECAS Vehicle Stability
IGN A Ignition Power
IGN B Ignition Power
LBEC 1Left Bussed Electrical Center,
Left Doors, Truck Body
Controller, Flasher Module
TRL PARK Parking Lamps Trailer Wiring
RR PARKRight Rear Parking and
Sidemarker Lamps
LR PARKLeft Rear Parking and
Sidemarker Lamps
PARK LP Parking Lamps Relay
STARTER Starter Relay
INTPARK Interior Lamps
STOP LP Stoplamps
TBC BATTTruck Body Controller Battery
Feed
5-131

Fuses Usage
SUNROOF Sunroof
SEO B2 Off-Road Lamps
4WSVent Solenoid
Canister/Quadrasteer Module
Power
RR HVAC Not Used
AUX PWRAuxiliary Power Outlet Ð
Console
IGN 1 Ignition Relay
PCM 1 Powertrain Control Module
ETC/ECMElectronic Throttle Control,
Electronic Brake Controller
IGN EInstrument Panel Cluster, Air
Conditioning Relay, Turn
Signal/Hazard Switch, Starter
Relay
RTD Ride Control
TRL B/U Backup Lamps Trailer Wiring
PCM BPowertrain Control Module,
Fuel Pump
F/PMP Fuel Pump (Relay)Fuses Usage
B/U LPBack-up Lamps, Automatic
Transmission Shift Lock
Control System
RR DEFOG Rear Window Defogger
HDLP-HI Headlamp High Beam Relay
PRIME Not Used
02B Oxygen Sensors
SIRSupplemental In¯atable
Restraint System
FRT PARKFront Parking Lamps,
Sidemarker Lamps
DRLDaytime Running Lamps
(Relay)
SEO IGN Rear Defog Relay
TBC IGN1 Truck Body Controller Ignition
HI HDLP-LT High Beam Headlamp-Left
LH HID Not Used
DRL Daytime Running Lamps
IPC/DICInstrument Panel
Cluster/Driver Information
Center
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Fuses Usage
HVAC/ECAS Climate Control Controller
CIG LTR Cigarette Lighter
HI HDLP-RT High Beam Headlamp-Right
HDLP-LOW Headlamp Low Beam Relay
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 SystemFuses Usage
LO HDLP-RT Headlamp Low Beam-Right
FOG LP Fog Lamp Relay
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
5-133

Capacities and Speci®cations
Please refer toRecommended Fluids and Lubricants on page 6-14for 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 VIN Code Spark Plug Gap
VORTECŸ 4300 V6 W 0.060 inches (1.52 mm)
VORTECŸ 4800 V8 V 0.040 inches (1.01 mm)
VORTECŸ 5300 V8 T 0.040 inches (1.01 mm)
VORTECŸ 6000 V8 U 0.040 inches (1.01 mm)
VORTECŸ 8100 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.
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ApplicationCapacities
English Metric
Cooling System
After re®ll, the level must be rechecked. See ªCooling Systemº in the Index.
VORTECŸ 4300 V6 Automatic Transmission 14.0 quarts 13.0 L
VORTECŸ 4300 V6 Manual Transmission 15.0 quarts 14.0 L
VORTECŸ 4800 V8 Automatic Transmission 15.0 quarts 14.0 L
VORTECŸ 4800 V8 Manual Transmission 15.0 quarts 14.0 L
VORTECŸ 5300 V8 Automatic Transmission 14.0 quarts 13.0 L
VORTECŸ 5300 V8** Automatic Transmission 16.0 quarts 15.0 L
VORTECŸ 6000 V8 Automatic Transmission 13.0 quarts 12.0 L
VORTECŸ 6000 V8* Automatic Transmission 13.0 quarts 12.0 L
VORTECŸ 6000 V8 Manual Transmission 16.0 quarts 15.0 L
VORTECŸ 6000 V8* Manual Transmission 16.0 quarts 15.0 L
VORTECŸ 8100 V8 Manual Transmission 22.0 quarts 21.0 L
VORTECŸ 8100 V8 Automatic Transmission 21.0 quarts 20.0 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 5-18.
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
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ApplicationCapacities
English Metric
VORTECŸ 8100 V8 (Vin G) 6.5 quarts 6.1 L
Fuel Tank
Short Bed 26.0 gallons 98 L
1500 Crew Cab 26.0 gallons 98 L
Long Bed 36.0 gallons 136 L
Chassis Cab (pickup Box Delete) 36.0 gallons 136 L
Chassis Cab 350027.0 gallons
23.0 gallons102 L (front)
87 L (rear)
Chassis Cab 3500 (California)27.0 gallons
23.0 gallons90 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 3500HD27.0 gallons
23.0 gallons87 L (front)
68 L (rear)
Chassis Cab 3500HD 27.0 gallons 87 L (front)
Air Conditioning Refrigerant Capacity
Air Conditioning Refrigerant R-134a 1.6 lbs 0.7 kg
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