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2010 GMC Savana 4500 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
WHILE OPERATING MY VAN IT WOULD HESITATE AND MISSED THREE WOULD BE INTERMITTANT FIRING ISSUES. 2,4,6,8 ON DIAGNOSTIC REPORT IT SAID MISFIRING. I REPLACED ALL INJECTORS, COIL PACKS, COIL WIRES, AND AL