Question about Boating
Pump is good relay good no power to coil of pump relay need wiring diagram electic fuel pump on engine 7.4 chevy. Can jump across relay plug with relay out pump will run.
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Posted on Jan 02, 2017
The wire should not be hot until the relay is triggered. The relay does not get triggered until the ignition key is turned on. It will run for 3-5 seconds or until the system pressure it at max.
Posted on Apr 27, 2009
SOURCE: 1996 f150 fuel pump
You may have a break in the wire inside the tank to the fuel pump. I have seen the wires disconnect as the pump is installed.
Posted on Jun 10, 2009
Ok, The fuel pump doesn't run installed. Make sure everything ia in place and connected. Then go for the Maf sensor on the air intake duct.. It controls the fuel through the ecu. Have you purged or attempt to purge yhe fuel system with the fuel manifold valve? Try all of the above before diving into wiring.
Posted on Jun 15, 2009
could be a bad earth or [ground]
the power wire ma be brocken or have a loose or dirty connection
you neeed to trace it along its lenght to determine the fault!
so start at the pump & work back
Posted on Jul 20, 2009
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