I've got a '93 XLT with approx. 100k on it. Still runs fine, some diminished power, but have been battling recently with issue of starting up, getting to destination one, shutting her down and return to have her turn over, but not start. Every time I can leave for a couple of hours, return and it starts right up. Dealer can't find any problems, but when issue last occurred, removed fuel line to see if anything coming through during process. Appears not. Computer issue?? Help!!

Sounds similar to a problem I have. When it hasn't been driven in about 12+ hours then when I go to turn it over it won't catch. I usually end up having to turn the key back off and then try it again one or two more times before it catches. When it's been driven in the last couple of hours then it usually starts up fine.

I've had limited success turning the key all the way on to let the injectors prime once or twice before trying to start it. It does seem to help so I'm wondering if my problem is the fuel pressure regulator (?) that keeps the injectors pressurized. I really don't know how to check, though