I posted in Expy forum, too, but the F150 guys are more active (a bit more gearhead-ish too)

Looking for help - I experienced a no start with my 65k mile Expy. Here is what I am seeing and I think I may be having 2 issues at once. I went to leave my in-laws after dinner tonight and the truck wouldn't start.

The truck cranks fine, but won't start. I get no sound from fuel pump and no residual fuel pressure on the schraeder valve on the fuel rail. I checked the inertia switch and it was in the on position. I think this may be the fuel pump control module (it seems to be a common issue for Expys and F150s), but is there a known way to test these before replacing? I'd rather not drop $100 on a part that is not the source.

As if that wasn't a big enough pain, the starter will not disengage when I release the key - it keeps cranking, unless I turn to full off. I am assuming this is a shorted solenoid, but also wonder if it may be the ignition switch. Again, looking for any way to isolate which may be the culprit. FWIW, battery only 4 months old and is at 12+ volts. Also, ran a scan tool and there are no DTC codes.

Any help or thoughts are appreciated.

 

fuel pump driver module. same problem as f150s. mounted on top of l/r frame rail just behind l/r tire. look for corrosion on the backside of it. do this before worrying about the starting issue. these newer cars will crank on their own until they start as soon as you hit the key...