This factory service and repair manual for the 2012 GMC Savana 4500 describes a vehicle that is only half finished when it leaves the plant. The single body style is a two-door cutaway and the single trim is Base, so the variation is all in the engine bay: a turbocharged 6.6L diesel V8 of 403 cubic inches or a naturally aspirated 6.0L flex-fuel V8 of 364 cubic inches, both overhead-valve. Everything the manual documents sits ahead of, and underneath, whatever body was fitted afterward.
Engines covered
- 6.6L V8 (403 cu in) — OHV, turbocharged, diesel
- 6.0L V8 (364 cu in) — OHV, naturally aspirated, flex-fuel
Body styles covered
- 2-door cutaway
Trims covered
- Base
Known issues on the 2012 Savana 4500. The federal record for this model year is clean, holding no recalls and no owner complaints. For a cutaway that means the questions a shop brings to it are ordinary ones, a specification, a torque figure, a circuit to trace, and the manual answers them with procedures for both engines, diagnostic sequences that work from symptom to cause, and wiring diagrams for the base vehicle as delivered, before any upfit hardware was added.
