loose fan
 

hi guys I have a 2003 trailblazer with a 4.2. there was a ticking noise coming from the front end so I turned the truck off and checked. the fan and pulley are loose, I was wondering if anyone else has had this problem and if they could tell me what is in behind the pulley to hold it tight thanks

Got the same problem with my 2005 . Wondering what you found out with your 03. thanks