2004 GMC Sierra 1500 Service and Repair Manual
2004 GMC Sierra 1500 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Wiring diagrams and electrical sections
- Powertrain, brakes, steering, suspension, HVAC and more
Trims covered
- Base Standard Cab Pickup 2-Door
- SLT Crew Cab Pickup 4-Door
- Base Extended Cab Pickup 4-Door
- Denali Extended Cab Pickup 4-Door
- WT Extended Cab Pickup 4-Door
- SLE Crew Cab Pickup 4-Door
- SLT Extended Cab Pickup 4-Door
- SLE Extended Cab Pickup 4-Door
- WT Standard Cab Pickup 2-Door
- SLE Standard Cab Pickup 2-Door
Engines covered
- 6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated
- 5.3L 5328CC 325Cu. In. V8 FLEX OHV Naturally Aspirated
- 5.3L 5328CC 325Cu. In. V8 GAS OHV Naturally Aspirated
- 4.8L 294Cu. In. V8 GAS OHV Naturally Aspirated
- 4.3L 262Cu. In. V6 GAS OHV Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
ON CERTAIN VANS EQUIPPED WITH SURE-LOK WHEELCHAIR SECUREMENT SYSTEMS, THE SPROCKET TEETH OF THE RETRACTOR ASSEMBLY IS OUT OF ALIGNMENT.
IN THE EVENT OF A VEHICLE CRASH, THE WHEELCHAIR MAY NOT BE ADEQUATELY SECURED POSSIBLY RESULTING IN
DEALERS WILL INSPECT AND REPLACE THE WHEELCHAIR SECUREMENT RETRACTORS AS NECESSARY. SURE-LOK WILL H
THE SPARE TIRE AND WHEEL ASSEMBLY THAT WAS PROVIDED ON CERTAIN CONVERSION VEHICLES WILL NOT FIT ON THE FRONT WHEEL HUB DUE TO OFFSET OF THE WHEEL. HOWEVER, IT WILL FIT ON THE REAR WHEELS.
IF SOMEONE HAS A FLAT TIRE ON THE FRONT WHEEL, THEY WILL NOT BE ABLE TO INSTALL THE PROVIDED SPARE T
DEALERS WILL INSTALL A SPARE WHEEL WITH THE CORRECT OFFSET. OWNER NOTIFICATION BEGAN ON JUNE 11, 20
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the
This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have hi
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have hi
Showing the 8 most recent of 124 technical service bulletins on file with NHTSA.
BRAKES WORKED PERFECTLY TO STOP VEHICLE ON A STEEP DOWNWARD HILL IN ORDER TO OPEN A GATE AT THE BOTTOM OF THE HILL OF MY DRIVEWAY. AFTER THE GATE WAS OPENED THE VEHICLE PROCEEDED DOWN THE HILL COASTIN
WHILE DRIVING CONSUMER APPLIED THE BRAKES AND PEDAL WENT TO THE FLOOR. VEHICLE HIT A MERIDIAN STRIP POLE. CONSUMER WAS UNABLE TO MAINTAIN CONTROL OF THE VEHICLE, SKIDDED INTO A GUARD RAIL, AND VEHICL
WHILE DRIVING CONSUMER APPLIED THE BRAKES AND PEDAL WENT TO THE FLOOR. VEHICLE HIT A MERIDIAN STRIP POLE. CONSUMER WAS UNABLE TO MAINTAIN CONTROL OF THE VEHICLE, SKIDDED INTO A GUARD RAIL, AND VEHICL
ME AND MY TWO BOYS WHERE HEADED HOME AND I WAS TAKING A CURVE AT 50MPH A WENT TO SLOW DOWN TO 45 WHEN I STARTED TO TAKE THE CURVE I HEARD SOME KIND OF METAL BONE BREAKING SOUND AND MY TRUCK JERKED TO
ME AND MY TWO BOYS WHERE HEADED HOME AND I WAS TAKING A CURVE AT 50MPH A WENT TO SLOW DOWN TO 45 WHEN I STARTED TO TAKE THE CURVE I HEARD SOME KIND OF METAL BONE BREAKING SOUND AND MY TRUCK JERKED TO
Showing the 5 most serious of 253 complaints filed with NHTSA.
