Re: hard hot start [diesel]
"Bunny Boy" <firstname.lastname@example.org> wrote in message
> 1989 Ford F-250 7.3L V8 diesel. 220k miles (160k on engine)
> Engine starts fine when it is cold. Runs good. When it has been running
> a while and the engine is hot, then after being parked 10 minutes or so
> it won't start. It cranks just fine but won't fire up. Spraying a
> little WD-40 in the air intake makes it fire up every time.
> Any clues as to what could cause this, or suggested diagnostics that
> could reveal the cause?
Try this - carry some ice with you in a container, after the engine is hot
and the "no start" condition exists, put a double handful or so of
ice,wrapped in an old shop cloth, towel or whatever, on top of your
injection pump. Leave it sit for a couple of minutes and then try to start
it. If it starts, the problem is vaporized fuel in the injection pump, if
not then good luck....