Need help with fan shroud!

[wldcat10]

I have a problem with my fan shroud. I started my truck the other day and a weird noise was coming from under the hood. I checked it and it was my fan hitting againt the shroud on the right side. I found that the right side bolt came off somehow so I replaced it, but its still hitting and making that noise! But if I pull the shroud to the right it doesnt make the noise. I pull and put in the bolt but the shroud doesnt seem to stay in place and it just keeps hitting. The fan shroud is good, and would hate to go buy a new one. Is there anything I can do so it stops making the noise?