Join Date: Jun 2010
Location: Hicksville, NY
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Update, I swapped injectors from cylinders 3 and 5. The problem stayed with cylinder 5. Therefore, FICM will be replaced. I know its not the circuitry, b/c I pulled what little hair I have left out trying to find any rubbed through points. None were visible. Next question remains, is there any way to have the FICM provisioned w/o the dealer having the truck in their possession? In other words, can the FICM be programmed outside of the dealer?
2005 GMC Sierra 3500 CC/LB Dually LLY Dmax
2006 GMC Sierra 2500HD CC/SB SRW LBZ Dmax
2011 Chevy 3500 CC/SB SRW LML Dmax
2013 GMC SIerra Denali 3500 DRW LML Dmax
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