So I just replaced my transmission with a fresh rebuild, got maybe 15 km's on it. This didn't happen till I took it out for an actual drive, moving it around in the yard was fine.
But once the truck is put in park and turned off, it will not start up in park (Will in neutral just fine).
The solenoid continues to fire once every 10 seconds or so, when the engine is off. I can get it to go away by firing it up, but as soon as it is turned off it goes like clock work.

<iframe src="https://skydrive.live.com/embed?cid=5DDC1B7D8512AC64&resid=5DDC1B7D8512AC64% 213818&authkey=API4iccpblglfIQ" height="320" frameborder="0" width="192" scrolling="no"></iframe>

Any help would be appreciated.

 

I'd say you have a bad wire somewhere is it the starter solenoid? The video won't play just sound, Are you sure the linkage is set correctly so the netural safety switch is engauged.