well finally found the rattle

For months I have had an annoying rattle from the right front. I thought suspension at first checked everything nope. Checked hood hinges and fender parts nope. Finally the other day with the hood open I touched the engine computer. Rattle, rattle, rattle one side slides around I wedged a piece of carboard in to hold it for now. Does anyone know if you can just buy the plastic computer holder part or know of a more permanent fix to this rattle.

expanding foam should do the trick 

Id start callin junk yards and see if they have the part

yeah, use the foam, just be careful not to get it everywhere.