Ford Repair Questions? Ask a Mechanic for Answers ASAP
Hello,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.
My ford cranks fine, I've replaced all wires, plugs, coil, fule has been refreshed. I was told it sounds like the fule module and it keeps it from starting until pressure builds up. Beacuse if I keep trying it will start after a loooong time but then runs ok
Yes a bad driver modual could cause this problem by no allowing the fuel pump to run. That being said, a week fuel pump will do this as well. I would start checking fuel pressure when its hard to start.
how's the best easiest way to test fuel pressure, I will replace the module tomorrow and see if theres a change
Install a fuel pressure guage to the fuel rail service port.