I have been to all sorts of Mechanics and nobody can diagnose my problem. Sometimes it will run and sometimes it will not run. Starter turns engine fast. I replaced the CPS and it was not that. When cranking the RPM indicator moves a few hundred RPM's so it is good. Ford dealer can't get any bad codes. Sometimes It will not start and I wait an hour or so and try again and sometimes it will crank after the wait. Any IDEAS? Marvin EDIT-----How can I troubleshoot the Fuel filter oil reservoir?