[duke350]

I have a friend who has a 94 blazer 4.3w and he has a problem with it. I am trying to help him via internet and telephone. He has limited test equipment. When it is first started it runs great. Fuel pressure at first key on is 61-63, right in that area. When first started it is 55 at idle, until taken on the road, then its back up to 61-63 and stays, even at idle. No leak down at all, little to no fluctuation. Blazer runs great at 10 MPH or at 90 MPH. The problem is when it gets warm it will sometimes stall at idle. No codes, no fuel pressure fluctuation, just stalls. It will at most times start right back up, sometimes it will take holding the key a few seconds longer, but it will always start. Does anyone have any ideas? He has very limited test equipment and cannot get here for about a month, so I am looking for things he can do himself.