Description
Factory Chevrolet Colorado Workshop Manual (2004-2012)
This factory-level repair manual covers every first-generation Chevrolet Colorado built for the US market from 2004 through 2012, giving DIYers and professional technicians the complete procedures needed to service any GMT355-platform mid-size pickup.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Gasoline | 2.8L Vortec 2800 L4, 2.9L Vortec 2900 L4, 3.5L Vortec 3500 L5, 3.7L Vortec 3700 L5 |
| Diesel | 2.5L 4JA1-T, 2.5L 4JJ1-TC, 2.5L 4JK1-TC, 3.0L 4JH1-TC |
| Transmissions | Aisin AR-5 5-speed manual, 4L60-E 4-speed automatic |
| Drive | 2WD (RWD) and 4WD |
| Model Years | 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
| Badge Twins | GMC Canyon (GMT355), Isuzu i-Series, Isuzu D-Max |
Common Colorado Repairs Covered
| System | Procedures |
|---|---|
| 4L60-E Transmission | Harsh shift diagnosis, 3-4 clutch pack replacement, fluid and filter service |
| Engine Timing Chain (3.5L/3.7L L5) | Tensioner replacement, chain stretch inspection, guide rail removal and installation |
| Brake System | Front caliper rebuild, rear drum adjustment, ABS wheel-speed sensor replacement |
| Cooling System | Thermostat housing repair, water pump replacement, radiator flush and leak diagnostics |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Is the 3.5L inline-five timing chain failure covered in this manual?
Yes. The 3.5L Vortec 3500 and 3.7L Vortec 3700 L5 engines are known for timing chain tensioner wear, particularly on higher-mileage trucks. The manual includes complete disassembly sequences, torque specs, and OEM part references for chain, tensioner, and guide rail replacement on those engines.
Does this manual also apply to the GMC Canyon?
The first-generation GMC Canyon shares the GMT355 platform with the Colorado and uses identical powertrains and body structures. While this manual is branded for the Colorado, most mechanical and electrical procedures translate directly to the Canyon of the same model years.
Are wiring diagrams and 4WD transfer case procedures included?
Full electrical schematics are included for all model years, covering the engine management system, charging and starting circuits, lighting, power accessories, and the electronic 4WD transfer case controls. Connector pin assignments and color-coded wire identifiers are shown throughout.
What format is the manual?
The manual is delivered as a searchable PDF file immediately after purchase. It is compatible with Windows, Mac, iOS, and Android devices. Individual pages or complete sections can be printed for use in the shop, and the file may be saved to multiple devices for convenient access.
Reviews
There are no reviews yet.