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my 1992 gmc sierra will not pass gas to the carburater i replaced the fuel pump and filter the problem continus what could it be?

have you checked fuses,relay?

have you checked fuses,relay? also has a fuel pressure test been done. you may have fuel pressure, but no injector drive. if it's a cpi injection, they have had with that injector.

I you don't have fuel

I you don't have fuel pressure remove the filter and run the line from the tank into a container. turn the key on but do not crank the engine; see how much fuel flows into the container (the pump will only run for 2 seconds each time you turn the key on. If you have fuel at the filter, but none at the injectors, suspect a clogged fuel line.

do you hear the pump run for

do you hear the pump run for a few sec when turning the key to the on position? no start

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