I bought another ecm off of ebay last week and put it in a few days ago. I turned ignition key in the on position, the fuel pump came on for a few seconds and shut off.The truck started right up and runs great.Thanks for all the help everyone.
mike

 

That's the same thing I did, replaced the engine computer. Still running fine.

 

i am having the same problem what did you do to fix it

 

They replaced their trucks computers to fix the problem.