My 94 explorer has intermittent starting problems. After listening to
your advice, here is where I am now:
When it doesn't start..I listen for the fuel pump when the key is on,
it runs but doesn't stop after a few seconds like when it does start. I
can also hear a sound under the hood like air leaking. I assume this is
from the pressure regulator. The fuel pump was replaced last year with
an Advance auto pump for an unrelated reason(rusted, leaking fuel
line). Could a pressure regulator fail in such a way to prevent it from
starting? Thanks for all the help so far, much better than the garage.