Originally Posted by MDBones
LOL... you'd squeal too if someone started you up on a sub-zero morning.
Strange sounds are pretty normal under those circumstances.
Yup. Sometimes it is the belt, but another culprit is the bearings in the tensioners squealing because the lubricant at those temperatures is more of a glue than a lube.
If the sound has gotten worse at similar temperatures, it is worth checking the bearings and either replacing or giving a careful shot of a silicone based lube.