Engine cranks, but won't start. Car has gas-Confirmed. Air Filter clean. Problem developed over several days. (i.e. harder & harder to start each day.) No problem noticed in engine/vehicle performance while driving, or engine idling, during this time frame. I had changed the fuel pump & filter a few years ago (3-5 years ago pump failed.) I usually can hear the fuel pump run for a few sec.s when I turn the key on, but cannot hear it now. Have not checked fuses for pump yet, but would like to think the pump would have lasted longer than 3-5 years. Also don't understand why it only affected starting only, and not operation? I figure that it is the fuel pump, but it was very hard to change, and I didn't want to change it, only to find that there was something else wrong.... Thank you. John

fuel pump would not be my first guess..to start you say no fuel pump hum.. ok second thing to check is to turn key to the run position and see if the check engine light comes on on cluster...if so computer is powering up... next you will need to scan to pull codes they have a big problem with the crank sensor..it gets tiny cracks in it and the oil seeps in causing hard to start problems... possibly set a code and check engine light then comes on...not sure of the year of van but if it has a distributor the the flat round pick up under the rotor button... if new or 6 cylinder the a two wire sensor goes in body of motor near radiator side of motor... write back if more info needed fuel pump would not be my first guess..to start you say no fuel pump hum.. ok second thing to check is to turn key to the run position and see if the check engine light comes on on cluster...if so computer is powering up... next you will need to scan to pull codes they have a big problem with the crank sensor..it gets tiny cracks in it and the oil seeps in causing hard to start problems... possibly set a code and check engine light then comes on...not sure of the year of van but if it has a distributor the the flat round pick up under the rotor button... if new or 6 cylinder the a two wire sensor goes in body of motor near radiator side of motor... write back if more info needed