ok so my blazer was out of commition for a wile. I rebuilt the transfer case.(nice) The transmition (4 speed manual) leak is gone. (sweet) All U joints have been replaced.(yes) So I go to start and have fun. Not enough current to heat Glow plugs. New bateries, New starter. It took a while to find out the glow plug relay was not a GM part. it is a ford part. For some reason I dont know why the GM glow plug relay would not work. So I tried the ford starter relay and BAM it starts. OH yea. The next day I go to move it and it started. I was on a hill and my parking brake doesent work so I shut it down put it in granny get out to remove the blocks from the tires. Then I turn the key NOTHIN. Can anyone help. Im at a loss. Yes I did check the fuses