Anybody ever repaired one of those IRCM Relay control boxes for the fuel pump and fan relays? My pump relay is sticking and I have to smack the box sometimes to get it to start in the morning. Are there any parts you can get to in there, or is it all "Potted" in that rubbery stuff? Replacement prices? Where's the best price.... Ford or after market store like Autozone or Advance Auto.