I found that the A/C idler pulley somehow fell off my car (haven't noticed until now since I haven't used the A/C since last summer). I bought part number 11925AG30A and need to install it but have not been able to find any videos or helpful DIY's for this. The other two pulleys are intact and the belt is still on so I'm (hopefully) assuming it's just matter of installing the idler pulley.

1. Is there any special tools needed for the install?
2. Any helpful videos or DIY's I might've missed?
3. Any help or information would be greatly appreciated.

 

search online "G35 Service manual" I'm pretty sure it's out there and it will be in pdf format.

 

The idler pulley is just held on by one nut IIRC. No need for a pulley puller so you've got a very simple repair.