If the fuel filter will not refill, you know you have a fuel problem. Some of the fuel systems use a "pull" system unlike gasoline engines using a "push" system with a rear fuel pump.
The "pull" systems need Vacuum in the fuel system to allow a draw from the tank. An opening at any point in the system will defeat the drawing of fuel. What you might try is a Vacuum pump attached to the fuel line at various intersections in the flow.
At the point of the air leak, you should find that you can not draw fuel past that area without "losing the prime". You also may want to fill the new fuel filter to reduce any air pockets in the system. I can not say if your system has a fuel pressure regulator, but a leak in its diaphragm can affect starting. Also if the air pressure was excessive, the diaphragm may have ruptured.
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SOURCE: ford f350 7.3l diesel carnks but won't start
Check your battery voltage while cranking. If it's too low, the electronics won't work and the injectors won't fire. If the batteries are down a bit, there won't be enough power to turn the engine over fast enough to start. It needs a minimum of 100 rpm and 8 volts while cranking. You also might try waiting till you're sure the GPR has dropped out. That takes the GP load off the batteries and may get the voltage up enough to get it to start, oh and also does the tach move when you're cranking? If not, then chances are the CPS is the culprit.
SOURCE: I have a 1999 Ford F450 super duty diesel. It
Replace the glowplug relay.Its faulty.The glow plugs stay on until engine warms up.The engine temp switch then activates the relay to switch off.So it could be the temp switch also faulty.
SOURCE: 1987 Ford f-250 6.9 liter
Check for fuses first. The Glowplug timer is the proper name for the part that responds to Temperature when starting your engine. When the engine is cold, of course it is on longer and can cycle making a click and intermittently dimming the lights on your truck. When the engine is warm, your gowplugs may not even fire as the engine is using compression alone to fire up.
Also, Ford did make a Severe Weather model that kept the glowplugs on longer. If you stay in Alaska or a climate with consistent subzero temperatures you may need it.
SOURCE: I have a 1989 international
you answered your own question with # 1
the fuel leak is doing opposite when starting it is sucking
air . i had the same problem on mine,
it also let the fuel drain back to the tank that then
takes forever to reprime itself
hope this helps
SOURCE: Won't start but cranks has
i got fiat premier 138 d diesel model when i changed the diesel filter a little bit diesel pour into glow plug wire when i started the engine it starts burn then i replace a new wire but it is also bulging and it got heated then battery got down .i replace solenoid switch which is connected to starter and glow plug but i did not identify the problem. In dash board the glow plug light indicator is not working .in indicator wire i tested with test bulb one connected to positive and connected to the indicator both wire the bulb is lighting I cannot identify the problem and give detail diagram
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