Repair Diagrams for 2004 GMC Sierra 2500 HD Engine, Transmission, Lighting, AC, Electrical & Warning Systems

Auto Parts Search

Make:

Model:

Year:

Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!

Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2004 GMC Sierra 2500 HD car and truck repair procedures including GMC engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up & drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix your 2004 GMC Sierra 2500 HD automobile. Try the Automotix DIY solution today!

DIY REPAIR SAMPLES > CONTINUE EXPLORING >

We have info for following modifications of 2004 GMC Sierra 2500 HD

2004 GMC Sierra 2500 HD 6.0 V8 GAS, CID:364, Fuel Injection, Aspiration:364, Engine VIN:, Desg:U
2004 GMC Sierra 2500 HD 6.6 V8 DIESEL, CID:400, Fuel Injection, Aspiration:400, Engine VIN:, Desg:1
2004 GMC Sierra 2500 HD 8.1 V8 GAS, CID:496, Fuel Injection, Aspiration:496, Engine VIN:, Desg:G
2004 GMC Sierra 2500 HD 6.6 V8 DIESEL, CID:403, Fuel Injection, Aspiration:403, Engine VIN:, Desg:2

WIRING DIAGRAMS FOR 2004 GMC Sierra 2500 HD AUTOMOBILES

OEM drawn wiring diagrams for most 2004 GMC Sierra 2500 HD cars and light trucks sold in the U.S.

2004 GMC Sierra 2500 HD 6.0 V8 GAS Wiring Diagram

Components on diagram:

Powertrain Control Module

Engine Control Module

AC Compressor Clutch

HVAC Control Module

AC Low Pressure Switch

2004 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

Components on diagram:

Stoplamp Switch

Park Neutral Position Switch

AT Shift Lock Control Solenoid

2004 GMC Sierra 2500 HD 6.0 V8 GAS Wiring Diagram

Components on diagram:

1-2 Shift Solenoid Valve

3-2 Shift Solenoid Valve

TCC Solenoid Valve

2-3 Shift Solenoid Valve

Powertrain Control Module

2004 GMC Sierra 2500 HD 6.0 V8 GAS Wiring Diagram

Components on diagram:

Transmission Control Module

Stoplamp Switch

2004 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

Components on diagram:

Body Control Module

Door Lock Switch Driver

Door Lock Switch Front Passenger

2004 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

Components on diagram:

Center High Mounted Stoplamp

2004 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

Components on diagram:

Roof Beacon Switch

Roof Beacon Relay

2004 GMC Sierra 2500 HD 6.0 V8 GAS Wiring Diagram

Components on diagram:

Ignition Coils

Ignition Control Module

2004 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

Components on diagram:

Radio

Cellular Microphone

Cellular and Navigation Antenna

OnStar Button Assembly

2004 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

Components on diagram:

Rear Seat Entertainment Assembly

CLICK HERE TO GET FULL ACCESS TO 2004 GMC Sierra 2500 HD WIRING DIAGRAMS!

Shop online for auto body parts, engines, wheels, lights...

	2010 GMC Sierra 2500 HD Bumper End, Rear, Driver Side, With parking aid sensor holes; Ensures precise and perfect fit for a reliable and efficient performance; Adds unique and distinctive styling that gives your vehicle a custom look; With 2 years limited TrustBuilt warranty.. Source: Auto Body Parts Store	$179.57

	2001 GMC Sierra 2500 HD Bumper Bracket, Front, Driver Side, AutoTrust Gold products are guaranteed to meet or exceed the original manufacturer's standards and quality; <b>Backed by a 5-year limited warranty</b>; If the part breaks or is damaged - even if you are involved in a wreck or accident - anytime within 5 years from purchase, simply cover shipping and handling and we will send you a new part.. Source: Auto Body Parts Store	$8.67

	1995 GMC Fullsize Van 15" X 6.5" Steel Wheel, STEEL WHEEL, 15 X 6.5, 5 STUDS/LUGS, 5" BOLT DIA, SQUARE VENTS, BLACK, UNIVERSAL; STEEL, , . Source: Wheels / Rims, Mirrors & Lights Store	$64.45

	2005 GMC Sierra 2500 HD V8, 6.0 L, 368 CID Rebuilt Engine, 6.0 V-8 Aluminum Heads, Warranty: 7-Year/70,000 Mile, . Source: Rebuilt Engines Store	$2,265.00

	2001 GMC Sierra 2500 HD Used Intake Manifold, 5.3L, Very Good. Source: Used Auto Parts Store	$237.00

	2001 GMC Sierra 2500 HD Used Exhaust Manifold, L., Very Good. Source: Used Auto Parts Store	$88.00
More parts

Auto Repair Quick Search

Help me find

Search DIY repair manuals by VIN...

Get the Complete Technical Service Bulletins!

Access diagrams and repair information such as wiring diagrams, diagnosis and repair charts, manufacturer service bulletins, and OEM Part numbers of your 2004 GMC Sierra 2500 HD vehicle.