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Repair manuals
The RG Colorado (2012 to 2020) is Holden's midsize pickup. Most use the 2.8-liter Duramax turbo diesel with a 6-speed manual or automatic, in 2WD and 4WD.
Our Colorado manuals cover the diesel engine and its emissions system, the transmissions, 4WD and transfer case, towing equipment and complete wiring diagrams.
