Odd noise.

[Steve98XJ]

I have a 98 Xj with 106k, I bought it new and eversince it was about a year old it makes an odd chirping noise whenever I turn the AC on and the Aux fan kicks on. it sounds like the noise is coming from the front around the radiator, it almost sounds like something metal vibrating against plastic.
Has anyone else had this problem??? and/or have a fix??

 

[Yucca-Man]

Sounds like the fan belt might not be tensioned correctly. The added drag of the a/c clutch throws it off and it squeals until everything's spinning right again.

 

[Steve98XJ]

How would I go about Adjusting the belt Tension??