trouble truck will start up.But only if I use a gas rag to fire it up, but once I turn her off it will not start right back up and need the rag it again. replaced the enjection pump all the o rings, copper washers on injectors and don't see any wet fuel. if the truck sets for a couple of minutes it will start back up but turns over for 20 sec before it will fire, five minutes and gas rag again its a 1987 f250 cover says its a 7.3 vin says its a 6.9
any ideas would be great.
any ideas would be great.