I have a 2004 f250 superduty 6.0 diesel . Six months ago I replaced the starter, then it acted like the new starter had a bad spot I could tap the starter to get it to work. Did this for 3 days before I replaced the starter again, the second starter I replaced looks like it got very hot as the insulation on the wire going into the starter looked melted. After installing the new one I got nothing when I try to start it. after some troubleshooting and swearing I found there is no power to the solinoid from the key. I was wondering what to look at next? Any advice is greatly appericiated.

 

might start by checcking to see if there is a fuse for the starter solinoid. it most likely sounds like a electral problem. i would try and back trace the wire and see if it is maby rubing on something and shorted and thats whats burnt up starters until now and if that might be why your currently not getting power.

 

theres also a relay too in line to check!