Astro Fuel Regulator

My Astro starts up ok when it's cold. However, once it runs a little while it won't start again at all (unless it cools down).

I've been told that this would most likely be the fuel regulator.

I wonder if others agree with this assessment?

Also, where do I find the fuel regulator and how do I identify it?

Any help would be appreciated!

You haven't stated what year your Astro is or how many miles are on it.
the fuel regulator is part of the CPI unit and is located underneath the intake plenum and is not separately serviceable. the easiest way to determine if you have a fuel regulator problem is to hook up a fuel pressure gauge to the inlet tube at the back side of the manifold, there are two tubes the one closest to the driver's position with a stub fitting above it is where the fuel gauge should be attached. I don't know precisely how many pounds of fuel pressure the Astro van runs on, but I would imagine between 50 and 60 PSI.
Measuring the fuel pressure is vital as of the CPI unit on the Astro is about $270.00 and takes anywhere from three to five hours to replace.
if you haven't replaced the fuel filter you might try replacing it first although I don't think that's problem. I hope this helps.

Regulator is serviceable on the 95 W motor. Napa Auto parts, come with the torx bit to replace it. If it won't run after it warms it's probably something else.

My Astro is a 1987, it has about 85,000 miles on it. Hope this helps.

Dude... My 87 does it too!
I am about to burn it to the ground!
Someone please help us!
Background: 87 Safari, 4.3 V6, Auto, 2wd, 165k mi.

I have replaced nearly everything under the sun..
Here's list of new items right off the top of my head:

Fuel pump, relay, fuel filter, injectors, regulator..
Dist. cap, rotor, plugs, wires, coil, ign. pickup, finally the distributor.

PCM, TPS, EGR, IAC, O2, EGR sel., All vaccum lines, PCV, Air filter, cleaned the TBI body...

I am looking into a bad engine ground, possible bad PROM and CALPAK now, but I am grasping for straws...

Here's an exaple of what it does...
Short trips with long (couple hours) lay overs.. Van is fine.
Long trips with short lay overs... your stuck.

Just a while ago...
I went out, cranked the van first try, drove it around the block several times while cold. Came back, parked it in the drive and let idle for about 30 min., when I came out to check it, it was not running and would no longer start..

I am tired of chasing this problem and being towed home..
If anyone has some insight... please help.