2004 GMC Envoy 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
- SLE Sport Utility 4-Door
- SLT Sport Utility 4-Door
Engines covered
- 4.2L 256Cu. In. l6 GAS DOHC 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 TRUCKS AND SPORT UTILITY VEHICLES, THE DRIVER WISHING TO SIGNAL A TURN BY MOVING THE DIRECTIONAL SIGNAL LEVER, (UP OR DOWN) MAY CAUSE THE FRONT MARKER/TURN LIGHTS AND REAR TURN LIGHTS TO FL
THE DRIVER MAY NOT BE ABLE TO CLEARLY SIGNAL THEIR INTENTIONS TO TURN, CHANGE TRAVEL LANES, OR POTEN
DEALERS WILL REPLACE THE SUSPECT FLASHER MODULES WITH A NEW FLASHER MODULE DESIGNED WITH SEALED RELA
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
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 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
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed fo
Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected mo
GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the deal
Showing the 8 most recent of 454 technical service bulletins on file with NHTSA.
TL*THE CONTACT OWNS A 2004 GMC ENVOY. WHILE DRIVING APPROXIMATELY 45 MPH ON NORMAL ROAD CONDITIONS, THE CONTACT REAR-ENDED THE PRECEDING VEHICLE. THERE WERE NO DAMAGES TO THE VEHICLES OR THE OCCUPA
TL*THE CONTACT OWNS A 2004 GMC ENVOY. WHILE DRIVING 35 MPH, THE CONTACT REAR ENDED ANOTHER VEHICLE. HIS VEHICLE WAS DESTROYED. THE AIR BAGS FAILED TO DEPLOY AND THE SEAT BELTS DID NOT RETRACT FOR B
TL*THE CONTACT OWNS A 2004 GMC ENVOY. WHILE DRIVING 35 MPH, THE CONTACT REAR ENDED ANOTHER VEHICLE. HIS VEHICLE WAS DESTROYED. THE AIR BAGS FAILED TO DEPLOY AND THE SEAT BELTS DID NOT RETRACT FOR B
BOUGHT THE CAR 2006 WAS TWO YEARS AT THAT TIME LESS THAN A WEEK INTO REPLACED BRAKES FOR ABS FAILURE. STILL HAPPENING, TOOK IT BACK SAID EVERYTHING WAS NORMAL. WELL ABOUT TWO WEEKS AGO MY WIFE WAS GOI
I WAS A FRONT SEAT PASSENGER IN A 2004 ENVOY WHEN WE WERE REAR ENDED BY A SEMI TRUCK. THE SEAT I WAS IN TWISTED SIDEWAYS TOWARD THE DRIVER'S SEAT. I WANT TO KNOW IF THIS IS A COMMON OCCURRENCE IN EN
Showing the 5 most serious of 483 complaints filed with NHTSA.
