Change them ASAP. If they are rather new, then check that your belt tensioner is functionl. The belt tensioner on my car is 11 years old and has seen over 200,000 miles, so these things work fine for a long while. My guess is that your belts need to be changed. Check the belts for damage or decay. YOu don't one of those snapping when you are a ways away from home :-/
Is the whine permanent? DOes it only come with cold temperature? Hot temperature?
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