Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
the first thing you need to do is check the fuel pressure,these must have no less then 60psi at all times,even while the engine is cold and turning the engine....i would think that the pressure will be low,,these wont even start with as much as 55psi...it is very common to get a bad new pump..so do check the pressure....then you may want to move on to the tune up..new plugs,wires,rotor,and cap.
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CIRCUIT DESCRIPTION When you turn ON the ignition, the vehicle control module Vehicle Control Module (VCM) energizes the fuel pump relay which powers the fuel pump ON. The pump remains ON as long as the engine is cranking or running and the VCM receives reference pulses. If there are no reference pulses, the VCM shuts the fuel pump OFF within 2 seconds after the ignition was switched to the ON position or if the engine stops. The VCM also turns ON the fuel pump for 2 seconds when you turn OFF the ignition.An electric fuel pump pumps the fuel through an in-line filter to the fuel meter body assembly. The pump attach's to the fuel level sender assembly inside of the fuel tank. The fuel pump provides fuel pressure above what is needed by the fuel injectors. The pressure regulator keeps the fuel available to the injectors at a regulated pressure. Unused fuel returns to the fuel tank by the fuel return pipe.