Ok The van will fire up after it sits for like 3 hours Does not matter how long you run it 5 minutes 1 hour same symptom

Runs great when running no hard idle , step on it and it does not hesitate

Here what is new in the vehicle for the last 2000 miles

Factory ford parts Whole new filter filter assembly, New fuel pump, New water fuel separator filter, Vacuum pump

Tank is full of fuel, RUN SHELL DIESEL. Batteries are year and 4 months old, No cranking issues, Tested the volts batteries at 12.15 to 12.18 standing

When running 14.75 at idle Was a former Fire dept Van Heavy duty Alternator


Oil level is fine and clean, Change every 5000k No check engine light, No codes Yet


Now Will A CPS CAUSE THIS ISSUE HAVE A FACTORY UPDATED FORD COMING