^Could be true but answer is not complete!!
A belt that squeaks could be a sign of 2 things.
1. Belt is loose...not too tight! However, a belt that is too tight will wear quicker causing the belt to become loose and could/will cause these symptoms over a period of time. Usually not right away, unless the belt is already worn.
2. Belt is worn. If the belt looks to have a real shiny or glazed contact surface replace the belt. This shiny/glazed surface makes it relatively easy for the belt to slip. Another sign that the belt is worn is belt material missing or belt is cracked. If you see this, replace the belt.
EDIT: Apparently, belt tension diagrams are a secret....I can't find one anywhere. So refer to your repair manual for the correct procedures on how to properly adjust belt tension, I'm sure there is one in there.![]()