94 Safari Won't Start when hot

I have a 94 GMC Safari with a 4.3 W code fuel injected engine. When cold I can start the van and drive it all over town and it runs fine. The problem is when I turn it off it will not start again until it sits for a minimum of two hours. The van starts right up after that and runs perfectly until you turn it off again and then it will not start for another 2 hours.
The only thing I noticed that was different before this started happening was that the engine temperture was hotter than normal at idle speeds. Any ideas or suggestions would be greatly appreciated. Thanks.

I have EXACTLY the same problem on my GMC Safari. I was able to test for a spark the last time it happened (3 days ago) and it was not an ignition problem. I was able get it running again by putting a third of a cup of gas into the breather. I suspect its a fuel injector problem but need more advice on this.

Check the reviews for your vehicle on http://autos.msn.com and it will identify the most common issues with it. Fule pumps, fuel injectors and EGR passage are common issues foe GMC Safaris.