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International Automotive Technicians Network
Re: 2008 gmc prime fuel system
Posted to Technical Discussion Forum on 7/29/2008

John. If the pump in the fuel conditioning module is not running I would look at fuse 2 (20A) in underhood fuse block-Key-on should have B+ supplied by Fuel Pump Relay (#72). This relay coil is supplied voltage to coil (86) by ECM term (X2-12), through coil ou... Login to read more.