This van is a 1988  Automatic...........

So is mine...

I had the problem with turning the key and nothing happenning........I
installed a new Bosch starter 4 months ago, so i pulled it and took it to
the shop for warranty replacement.........put the new one on, and got about
ten starts out of it, no problem.  Then, same thing........if i hit the
starter with a mallot and screwdriver (thru the engine bay) and someone is
turning the key, it fires right up.

Now, I pulled the harness off the ignition switch and plugged on a new one i
had on the shelf......nothing.  I then ran a jumper wire from hot in the
ignition switch harness straight to the starter...fired right up.  So, I
knew i had a voltage issue with the plug on wire at the starter.  (loaned
voltage meter out so did not have) So, I thought time for the Bosch WR-1
relay kit.  I install it, and it fires right up.BUT...the solenoid or
starter is still engaged after it starts when i run the relay.  If i jumper
the starter from 12v it just starts with no hanging up.  So I tried a
different relay, and same result........It is like it is not switching
itself off after the starter engages.

Then I Chase wires from the ignition switch to the fuse box, Spray DeOxit on
them, and hook it all up stock.  Turns right over.....a few times that is.

   I know my prolem is the park/neutral switch. Maybe I have to jump it in
the morning and it works fine the rest of the day, or I have to be
jump starting all day, depends. You could probably start there. I know this,
because it won't start in neutral using the ignition switch 99% of the time,
but it does in park, when it does start.

I pulled it up on ramps to check some other stuff, and I go back in to start
it, and nothing. NOTHING.  no LIGHTS, NO POWER AT ALL IN THE
FUSEBOX..........NOTHING.    i THEN CHECK THE BATTERY, AND IT HAS 12.5v, and
the connections are tight.

Switch?