Ok so after all the drama I went through on the fuel side..now that works fine after replacing the fuel pump, fuel filter and yet again that &^&^ asd relay. Now what happens is as the engine warms up to about a certain point the engine dies and no more ignition fire..so what the heck is it now?

Oh and when it does run..no engine light..acts like nothing at all is wrong. I thought at first maybe the new fuel pump was failing after running awhile..but nope..still a good fuel flow. I have so far replac3ed the map sensor..the block temp sensor, start run relay, asd relay, new fuel pump, and fuel line filter, new plugs, wire, cap, and rotor, and the engine was replaced in 2001..just for the record

1988 Ram Van, B-250. 5.2 TBI

 

What about the ignition coil? Ones that are internally cracked will fail when they get hot but work when they're cold.

 

Thanks for the reply alloro. I will check that tomorrow and see. Meanwhile what I did do was DC the battery again for awhile..mostly because I needed to recharge it from all the cranking..and then I got it started again. This time however no fail..it kept running. I am starting to think the van is just possessed..lol