Forum Discussion
77rollalong
Mar 01, 2018Explorer
The fuel pumps run 10 to 15 sec when the ign is turned on to prime the fuel rail, once started the oil pressure switch proves the motor is running and keeps fuel flowing on the GM's
fuel pumps is one thing that can go at any time like a headlight bulb, best to go with the OEM type, found less problems. also if you rig has steel lines coming out of the sending unit make sure the lines are in good condition as well, not a bad idea to coat the top side of the gas tank and lines with undercoating, some of the newer fuel pumps come as an assemble, fuel pump/ sending unit all plastic , and plastic lines and no rust problems..
fuel pumps is one thing that can go at any time like a headlight bulb, best to go with the OEM type, found less problems. also if you rig has steel lines coming out of the sending unit make sure the lines are in good condition as well, not a bad idea to coat the top side of the gas tank and lines with undercoating, some of the newer fuel pumps come as an assemble, fuel pump/ sending unit all plastic , and plastic lines and no rust problems..
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