Savana 4500 V8-6.6L DSL Turbo (2009)
and Repair)Cooling System Draining and Filling (Vac N Fill) (See: Engine, Cooling and Exhaust/Cooling System/Service and Repair).
GMC Workshop Service and Repair Manuals
Relays and Modules - Instrument Panel >
< HVAC - Manual|Page 122
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