Short Term Fix Annoying Serpentine Belt Squeal Noise - Belt Dressing Spray

Use this for a quick fix that last a couple of weeks. There has been an annoying squeaking sound from the engine compartment. I looked and it's coming from the serpentine belt. My car is Ford Crown Victoria. Tried it and it fixed the noise problem a little while. You'll possibly need to replace the belt and check the pulleys for permanent fix.
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The belt dressing will prolonging the belt life for a while longer. Prestone Belt Dressing Eliminates Squeaks & Chatter. Conditions serpentine belts, V-belts, and fan belts to prolong belt life. Promotes better grip and traction. Restores original surface chemistry and friction to better grip the pulleys. Regular use advised. Helps prevent premature wear.
A serpentine belt also known as a multi vee or multi-rib belt is a single continuous belt used to drive multiple parts in an automotive engine, such as an alternator, power steering pump, water pump, air conditioning compressor. The belt may also be guided by an idler pulley or a belt tensioner.