does a fuel pump module send a message to the fuel pump to work

5

Asked by Oct 04, 2015 at 08:25 AM about the 2004 Ford F-150 Lariat Ext. Cab SB

Question type: Maintenance & Repair

truck turns over but will not start (starts with starter fluid), cannot hear fuel pump turn on

2 Answers

41,175

Did you check your inertia switch behind the passenger kick panel? That will kill the fuel pump. The fuel pump module is located above the spare tire mounted to the frame. The Fuel Pump Driver Module communicates diagnostic information to the powertrain control module (PCM) through the Fuel Pump Monitor (FPM) circuit. This information is sent by the FPDM as a duty cycle signal which in turns controls the fuel pump.

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Thanks, appreciate the response.

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