Thanks Lazy K, we are novices on diesel repairs, but pretty good on gasoline stuff. We suspected what you said was true. It is so d_ _ _ hot here in Texas that the "light" does not come on. Maybe we have a bad relay there as well. Will keep you posted. Thanks again.
OK, replaced glow plugs w/Ford OE parts, now it starts immediately but dies and won't restart w/o ether, a 90 f250 7.3 owner told me there is a relay not keeping the glow plugs hot. The bad river boys want to know.
now it sounds like your GP system is working perfectly if she starts right up and runs.
if she soon stalls out after starting easy,then this is more than likely because it just burned off the fuel left in the ip,but the rest of the fuel has drained back to the tank due to air intrusion.this is the most common issue we face as idi owners.
some of us have replaced all the old metal fuel lines,and installed electric fuel pumps rather than the mechanical lift pump.this way if fuel ever does drain back the e-pump just primes the system without the need to crank the engine over,and wearing out the batteries and starter.
one of the most common places to have a broken fuel seal,is the soft lines over the injectors,with the plastic caps.
the whole kit is replaceable and is called a "injector install kit".
good grade kits made by Delphi are sold at amazon.you can also buy some #111 viton o-rings while there,and use those in place of the buna-n sold in the kit.you need 16 rings.
other common places are found around the fuel filter head or old metal lines rusting out around the frame clips.