Description
Factory GMC Sierra Workshop Manual (2007-2013)
This is the factory-level service manual for the third-generation GMT900 GMC Sierra, covering light-duty 1500 and heavy-duty 2500HD/3500HD trucks sold across the United States from 2007 through 2013. Every procedure, torque spec, and wiring diagram you need for professional-grade repairs is included.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Gasoline | 4.3L V6 (LU3), 4.8L V8 (LY2), 5.3L V8 (LMG/LC9/LH6), 6.0L V8 (LY6/L96), 6.2L V8 (L9H/L94), 7.0L V8 |
| Diesel | 6.6L Duramax V8 (LMM/LML) |
| Transmissions | 4-speed automatic 4L60-E / 4L65-E / 4L70-E; 6-speed automatic 6L50 / 6L80 / 6L90; 5-speed manual TZ0 / M96 |
| Drive | RWD and 4WD |
| Model Years | 2007, 2008, 2009, 2010, 2011, 2012, 2013 |
| Badge Twins | Chevrolet Silverado (GMT900 platform); Cadillac Escalade EXT shares architecture |
Common Sierra Repairs Covered
| System | Procedures |
|---|---|
| AFM / Active Fuel Management | Lifter replacement and DOD delete procedures on 5.3L V8 engines prone to lifter failure |
| Transfer Case | NP261/NP263 encoder motor diagnosis and replacement; 4WD engagement faults |
| Brake System | Front brake caliper slide pin service, rotor resurfacing specs, ABS module diagnostics |
| Fuel System | Flex-fuel spider injector service (4.3L V6), high-pressure fuel pump replacement on direct-injection V8s |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Which Sierra trim levels and cab configurations are included?
The manual covers all 2007-2013 Sierra variants – Regular Cab, Extended Cab (Club Cab), and Crew Cab – across every trim from Work Truck through SLE, SLT, and Denali. Both light-duty 1500 and heavy-duty 2500HD/3500HD models on the GMT900 platform are fully documented.
Is this the same platform as the Chevy Silverado?
Yes. The GMT900 Sierra and Silverado share their core architecture, so many procedures overlap. However, this manual is Sierra-specific and includes GMC-specific trim, wiring schematics, and component part numbers rather than Silverado data.
Are Duramax diesel procedures fully covered?
Yes. The 6.6L Duramax (LMM and LML variants) receives complete coverage including fuel injection system service, EGR system maintenance, DPF regeneration procedures, and turbocharger diagnostics – all referenced to the correct model-year specifications.
What format is the manual?
The manual is a PDF document that downloads instantly after purchase. It is fully searchable, zoomable, and compatible with any device – Windows, Mac, Linux, iOS, and Android. Individual pages can be printed as needed, and no internet connection is required after downloading.
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