Belts squeaking

Hey, I just installed some AEM power pulleys and everything was fine for a week or so. Then today, they suddenly started sqeaking in low RPM's, whether it was from a stop or shifting sometimes. I thought that sqeaking was from the belts being too loose, is this probably the problem? If not, what else could it be? Thanks for your help.

I think that you could be right. Maybe try adjusting the tention on those belts

Souns like they are loose to me. Try tightening them up, yoiu should have about at the most 1/2" of play but more like 1/4" when you push or pull the belt between pullies.

for sure, my come loose all the time. just thighten them up.