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Ful pump installed and truck will not start - Sierra 1500 GMC Cars & Trucks

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What probably happened is maybe your fuel cut off switch engaged and cut off your fuel going to the motor as a built in safety feature. check that. also check your fuel pressure in the motor and see if enough pounds of fuel pressure is squirting through to the fuel rail and if not check your filters which may be clogged and not be allowing fuel to pass thru the line to the motor. last but not least check the ecm Brain computer. maybe it is sending the wrong commands to fuel pump and maybe memory has been lost in ecm.

Posted on Jul 26, 2009


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go here too

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