2008 GMC Sierra 1500 Service and Repair Manual
2008 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
- WT Crew Cab Pickup 4-Door
- SL Crew Cab Pickup 4-Door
- SLT Crew Cab Pickup 4-Door
- SL Extended Cab Pickup 4-Door
- Denali Crew 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
- 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
- 6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated
- 6.2L 6162CC 376Cu. In. V8 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
General Motors, LLC (GM) is recalling certain 2009 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado 1500, Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 1500,
An inflator explosion may result in sharp metal fragments striking the driver or other occupants, re
GM will notify owners, and dealers will replace the front passenger air bag inflator with an alterna
General Motors, LLC (GM) is recalling certain 2007-2011 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, Yukon XL, and 2009-
An inflator explosion may result in sharp metal fragments striking the driver or other occupants, re
GM will notify owners, and dealers will replace the front passenger air bag inflator with an alterna
This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box remo
New Vehicle Monitoring Programs Section in IVH
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble
This Preliminary Information communication provides information to the technician about vehicles that may have a bump feel or clunk noise at a stop or on launch. Dealer should communicate to the customer this condition is a normal operating
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 the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
Showing the 8 most recent of 410 technical service bulletins on file with NHTSA.
" TAKATA RECALL" LAST MEMORIAL DAY, I HAD JUST LEFT A STOPLIGHT TRAVELING APPROX. 20 MPH, WHEN I WAS STRUCK BROADSIDE BY A VOLVO SEDAN TRAVELING BETWEEN 50-60 MPH. I HAVE A SLT MODEL WITH FRONT AND S
IN THE CITY STOPPED AT A LEFT TURN LANE WAITING FOR THE GREEN. LIGHT TURNED GREEN, I STATED TO TURN LEFT AND WAS HIT ON RIGHT FRONT HARD ENOUGH TO SEND ME TWO LANES OVER, ONTO THE SIDEWALK AND INTO A
VEHICLE'S AIRBAGS DID NOT DEPLOY UPON COLLISION WITH TWO CONCRETE WALLS, CAUSING A LIFE THREATENING TBI AND ALSO SEVERE DAMAGE TO THE LEFT ARM WHICH RESULTED IN IT'S INABILITY TO CONTROL/USE BELOW THE
VEHICLE'S AIRBAGS DID NOT DEPLOY UPON COLLISION WITH TWO CONCRETE WALLS, CAUSING A LIFE THREATENING TBI AND ALSO SEVERE DAMAGE TO THE LEFT ARM WHICH RESULTED IN IT'S INABILITY TO CONTROL/USE BELOW THE
I WAS IN AN ACCIDENT AND HIT A FENCE AND THEN A POWER POLE. THE IMPACT PUSHED THE POWER POLE ABOUT A FOOT AND MY ENGINE WAS PUSHED INTO THE INTERIOR. THE AIRBAG DID NOT DEPLOY. AT THIS IMPACT SHOUL
Showing the 5 most serious of 439 complaints filed with NHTSA.
