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2007 ISX fuel pump will not work after filter change

I serviced 2007 ISX including fuel filters and turned on key to start electric fuel pump to purge remaining air from secondary fuel filter the pump did not turn on as it usually does with this procedure . I removed filter & toped off with fuel reinstalled and started truck. truck ran for 30 seconds and died. The pump still wont run. I checked for voltage to pump. There was none . Checked fuses &relay found no problem. it is a 2007 KW T800 please help

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My friends T600 did the same thing. Kenworth has some plastic electrical connectors on the inside, drivers side frame rail, just beneath the drivers seat, that tend to come loose sometimes. The connector that controls that fuel pump is rectangle shaped and about 2 inches long. I cleaned the connector up, and zip tied it closed so it wouldn't come loose again until we can change it.

You may end up getting a decent electrical schematic and following the power wire from the fuel pump back to the cab until you find the problem, but check those connectors first.

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Tim Manning will be eternally grateful.

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