Why a squeaky belt less than 2 yrs old got a new one now this one screeches at start up and at slow turns and when it's raining screeches at each slow down start up from stop and around turns?

Have you checked the Belt tension? LOOSE belt at startup will cause lower crank pulley to free spin before belt can grab and turn. This will cause excessive heat thus screeching sound. Power steering pump works hard to pump fluid when turning, if belt is not tight the opposite of startup occurs. As it pumps fluid pressure builds rapidly making the pulley harder to spin (LOOSE BELT will get hot trying to turn pulley). TENSIONER MAY BE GOING OUT. This happend to a friend, replaced no more noise. Or you can try adjusting tension on later model cars its the Power Steering pump bracket. Good luck!

NO ANSWER, I HAVE A REPLACED MY DOUBLE RIBBED BELT 3 TIMES IN THE PAST 5 MONTHS, THIS IS AFTER REPLACING ALL PULLEYS

ANY HELP,

STEVE