Intermittently but becomming more often when i turn the key on everything powers up and glow plugs heat up. Turn to start and absolutely nothing happens as if it was totally dead (but it isnt) cause then if i turn the ignition on and off anywhere between 1 and several times something finally clicks and it turns over and starts as normal. Any ideas? I already replaced the starter solenoid. Thanks.

 

Sounds like it might be a dirty or loose connection.
Check and clean all your connections starting with your negative terminals on your batteries. Then your positive posts down to your starter.