TA adam

well last weekend i replace the idler pulley becuze it was sqeaking then i replaced the belt because it was also sqeaking and then there was no sqeak i was super happy unfortunately the next day it started to sqeak again. any idead? is it maybe becuse i put the new belt on wen the motor was hot?

but before i replace the idler pulley and the belt it would onley squeak wen i was at an idle now it will onley sqeak when i accelerate? any ideas?

Thanks
-Adam