express 3500 chevy van tries to start but doesnt. when cranking stopped the engine rumbles. getting fuel can smell it.
Low battery.
you should try to poo in it
Try graphite or lock lubricant
could be that your truck doesnt have a strong enough cold cranking amperage Not sure what year and make truck you have but in some vehicles if the engine coolant sensor fails it can have those symptoms.
Meby you should try starting a convo with him
It depends, you could try starter fluid.
Weak battery or starter motor shorted out internally.
bleed the fuel and then start or manualy fill the new fuel filter and then try it
try disconnect the battery 4 about 10 min's then try it if it doesnt work take it to a shop
try an alternator
Try having the alternator checked at a local parts house, off the truck and on. If it tests good on a bench tester, then bad on truck, then you might have a bad voltage regulator or wiring problem. If it's an older ford, (should be if it's a 100), then the regulator should be separate from the alternator.
Try adjusting your pedal